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Strutz
12-28-2005, 01:00 AM
Let's see those converted kites !!:p

I really like some of the new elec ARFs coming out lately. But I think my favorite kites are the conversions of all shapes and sizes. It's so cool when somebody unloads a standard gas or glow plane like the Patty Wagstaff Extra or Funtana 90 and everyone does that double take when they jump off the runway making zero engine noise. Just the sound of a big prop slicing air and maybe the whine of the brushless motor when throttled back.

I'm still getting a kick outta my GP P-38 Profile . Just the security of not worrying about an engine going out makes the flying even better.
Or my Kamdax Mig-15 conversion. Clean and quiet except for the spinning DF blades.

BradT
12-28-2005, 08:52 AM
Here's one of my first conversions, back about '99: It's the 80" Graupner kit of the Canadian "Chinook" ultralight. This was way before BL motors and li-po cells. The setup was a Magnetic Mayhem 600 motor, geared 3.5:1, on 10 sub-C nicads, turning a 13x10 APC E prop (at least those were available by then:p ). It flew very much like a full size ultralight - slow take off, slow climb, and slow flying speed - so it looked extremely real in flight. The big prop, just behind the T.E., even sounded somewhat like a Rotax, thanks to the "Zagi" effect of the prop position.:D

BradT
12-28-2005, 09:42 AM
I also converted a couple of .40 size ARFs about that time ('98 or '99), by a Chinese co. called Taico Toy, called the U-SKY 40, and the Piper Cherokee. The 1st used a MEC Turbo 10+/6:1 gear/10 nicads, and the 2nd an Astro FAI 15G on 12 to 14 nicads. I have no pics of those 2, but the next couple I converted are shown below; the Hobbico Twinstar, 55", 2xMag. Mayhem geared in series, 20 nicads(heavy!!!), 10x7 props, and the Modeltech bf109E, also 55", MEC Turbo 10+/6:1 gear/10 nicads/11x9 prop. All of these flew as well as glow versions, but for only 6 - 8 min., because of cell capacity limitations (2000mah were the biggest at that time).

jrb
12-28-2005, 03:07 PM
So far I’ve done these:

Model: Global American Flyer -- conversion
Motor: Aveox 27/26/2
Speed Control: Kontronik 3SLB40-6-12
Cell type/count: 10, 11, 12
Prop/fan: APC“E” 13x10
Reduction method and ratio: 60/: 16 = 3.75, 15 = 4.00, 14 = 4.29
Amps: 33
Watts: 360, 405, 450
RPM: 6.3k+
Weight RTF: 6# +/- 3oz
Comments, etc.:2nd EP, followed Zagi when I re-entered RC 4 years ago after a 15year sabbatical. Lots of winter fun with skis. Here’s a link to a thread that describes an “Economical” power system I’ve used in the old Red White & Blue based on the Trinity Maxx Mild upgrade motor for the Traxxis E-Maxx; all the stuff is normally available at a local hobby shop: http://www.rcgroups.com/forums/showthread.php?threadid=155981 . Originally flown with a Aveox 1114/4Y.


Model: Global FreeStyle -- conversion
Motor: Aveox 27/39/2
Speed Control: Kontronik 3SL70-6-18
Cell type/count: 16xP3000s Zapped in two 8 cell SPTs
Prop/fan: APC“E” 15x10
Reduction method and ratio: MEC SuperBox (60/13 = 4.62)
Amps: 30
Watts: 500
RPM: 5.8k
Weight RTF: 6.5#
Comments, etc.: I fly pattern rather than 3D, though she climbs in an interesting manner ½ loop to ½ outside loop to ½ loop – times two. Originally flown with a MaxCim Y (w/o MaxCim ESC).


Model: H9 Cub (82”) -- conversion
Motor: Aveox 27/39/2
Speed Control: Kontronik 3SL40-6-18
Cell type/count: 16xP3000s Zapped in two 8 cell SPTs
Prop/fan: APC“E” 16x10
Reduction method and ratio: MEC SuperBox (60/12 = 5.00)
Amps: 28
Watts: 500
RPM: 5.4k
Weight RTF: 8#-10oz
Comments, etc.: Well beyond “Cubish” performance; 3+ successive loops QED. Or put around Cub like at 1/3 throttle for 15 minutes. Skis w/snow; floats this summer. Originally flown with a Mega 22/30/3; now have an AXI 4130/16 & 15x8 wood Zinger in it as an outrunner test bed.


Model: ModelTech P-51 w/retracts – Conversion -- http://www.hobbypeople.net/gallery/123695.asp & http://www.rcgroups.com/links/index.php?id=4788 .
Motor: Aveox 27/39/2
Speed Control: Aveox SH48
Cell type/count: LiPo – TP7800-5S4P & TP4200-5S2P
Prop/fan: APC 4 blader 15x11, trimmed to 12.5
Reduction method and ratio: MEC SuperBox (60/13 = 4.62)
Amps: 33
Watts: 600+
RPM: prop 5.8k
Weight RTF: 7.5#
Comments, etc.: a great and fun to fly warbird, QED conversion! Nothing like flying or watching a Mustang do a strafing run followed by a victory roll (video here: http://rcgroups.com/gallery/showgal...&when=&whenterm ). Originally flew it with 18xP3000 Zapped in MEC SPTs & (60/12); the extra 12oz were not an issue.


Model: World Model .60 ARF – Velox II ( http://www.theworldmodels.com/para/...p?airplaneid=64 )
Motor: Mega AC 22/30/3
Speed Control: Jeti “Advance” 77 Opto
Cell type/count: Zapped Panasonic 3000 NiMh -- 20 (2x10 in MEC SPTs), TP7800-6S4P, & TP8000-6S4P
Prop/fan: APC“E” 16x10
Reduction method and ratio: MEC SuperBox 70/18 = 3.89:1
Amps: 36+
Watts: 850
RPM: 6,600
Weight RTF: 9.75#
Comments, etc.: Excellent Sport Aerobatic and Scale! Flight tests are proceeding well, nearing final CG positioning. Aeros easily on 2/3 to 3/4s throttle. I like its flight characteristics much better than my FreeStyle. Here’s a thread that with additional discussion: http://www.rcgroups.com/forums/showthread.php?t=186338 . See my other planes/set-ups above ( http://www.rcgroups.com/forums/showthread.php?t=203529 ) or via my gallery: http://rcgroups.com/gallery/showgal...=500&ppuser=497 .


Model: Carl Goldberg Eagle II ARF
Motor: Jeti Phasor 45-3
Speed Control: Jeti Gold Label 40-3P
Cell type/count: 12xRC2000/P3000
Prop/fan: APC “E” 12x8
Reduction method and ratio: Direct Drive
Amps: 31
Watts: 406
RPM: 7.7k (calc)
Weight RTF: 6#-13oz (6.8#, 109oz)
Comments, etc.: Very nice trainer performance @ ½ to 2/3s throttle, also quite quiet. Loops and rolls easily, take-off roll is comparable to glow. Built by my friend Rick for his entry into RC; motor installation and RTF details by me http://www.rcgroups.com/links/index.php?id=4485 .


Next up is GP AT-6 (.40) again for Rick.

Matt Kirsch
12-28-2005, 09:13 PM
Think maybe this should go in the Glow-to-Electric conversions forum? Let me know.

Oh, and to keep this on-topic:
Hangar 9 P-40 Warhawk ARF, 6S Kokam BalancePro HD 3200 pack, AXi 4130/16, Graupner 15x8 prop.

Rugar
12-28-2005, 09:20 PM
Think maybe this should go in the Glow-to-Electric conversions forum? Let me know.



I think it should. Thought that's what is was for :confused:?

Mike Parsons
12-28-2005, 09:33 PM
I agree that it should go to Conversions. I will leave an redirect here though so others can follow it :)

EXFRC Mini-3d

Kyosho Sukhoi

Towerhobbies Uproar

UCD 46

H9 Funtana 46

68" Yak-54

87" Yak 54

Currently working on a 2m pattern plane and a Seagull Harrier 46

tahustvedt
12-28-2005, 10:36 PM
I have converted a couple of small planes many years ago. These are the ones I can remember off the top of my head.

Ace Simple Extra 230 (in ~1996)
Brushed Towerhobbies 540-class car motor
7-cell 1700 mAh battery
Very heavy, very fast and very hairy.:D
Later I used an Astro 020 and a 7-cell 1200 mAh NiMh pack.

Ace Simple Texan
Don't remember the configuration. Geared Speed 400 I think.

Focke Wulf 190, can't remember manuf.
Astro 020 I think
7-cell 1200 mAh NiMh pack


Recently I have converted:

Seagull 60-size Edge 540
AXI 4130/20 + APCe 17x8
Poly Quest 8S 4000 mAh
Hacker Master 77 Opto
4 kg
Flawed design and heavy construciton, but incredibly strong. Barely fits in my car as you can see.


The World Models Velox Rev II
AXI 4130/24 (rewound) + APCe 20x11
Poly Quest 8S 2500 mAh
Hacker Master Opto
3.59 kg
Nice flyer and light construction. Unlimited vertical. I'm not 100% sure this fits in my car, haven't tried yet. :D

I'm looking for a big warbird to convert now. Will probably end up getting a KMP or The World Models plane for one of the AXI 4130/20 I have lying around. The KMP warbirds will most definitely not fit in my car. :D

Strutz
12-29-2005, 12:28 AM
Sorry for the mistake.
Keep up the good work

hoppy
01-03-2006, 12:24 AM
House of Balsa Decathlon, school yard scale. Hacker 20-20L

Silverhawk
01-06-2006, 02:01 AM
T.T. Fun Tiger 51, Mega 22/20/3, 2.5:1, 12-2000's, 12x6. The tail feathers were taken off a couple of years ago by a Zagi at the NEAT Fair but it's back together and flys just fine.

Kyosho Cosmo, 2xturbo550's right now but will get smaller BL this spring. I'm looking at 400 size DD w/lipo's. This was designed for a .20 fan on its back but it had a pylon and prop drive on it's back when I got it.

Seniorita 3ch used as a test bed for various setups. Started with an OS .25 but has had from a geared 05 to a 1409/2y 3.7:1 and 14-2000's. What a floater!

I had a Sig Clipped Wing Cub, Astro 25G on 18 cells. Flew "heavy" and I sold it to a wet flier.

I am putting together a Modeltech .60 size Mustang. Might use one of my 1409/2y, 3.7:1 and the 15x12 4 blade. We'll see. :D

BradT
01-06-2006, 02:56 AM
Silverhawk's post reminded me that I've done the TT P51 conversion, along with 2 of my clubmates. In the pic, the near one is Robert's, with a MEC Turbo 10+/10 cell, the centre one, yellow checkered tail, is mine, on Astro FAI 15G/10 cells, and the far one is John's, on a Mega/12 cell setup. All flew very aerobatically, though mine has been eaten by one of our large trees since the photo in '03.

While pulling up that pic, I also came across one of my H9 Cub 80" conversion, at the same fly-in, along with another one by John M., of Pacific Models, similar size, different kit. Mine, with the black wingtips, has an Astro 40G, 20 Sanyo 2600 Nimh cells, and 14x10 prop, IIR, while John's has a large AXI. Both will do 15 min. flights. The H9 seems to handle better on the ground. In '04, my Cub had an in-flight ESC failure, which led to a trail of smoke behind it on approach, and the damage in the pics:

Sky Sharkster
01-07-2006, 02:09 PM
Hi All! My Avatar is a 1/2 sized "Astro Hog" -sorry no thumbnail, the "size reducer" DooDad keeps rejecting my attempts to downsize! I took the Sig plans to a blueprint shop and had'em reduced to exactly 1/2. Traced the outlines and re-fitted fuselage internals to accomodate electric components. Same wing airfoil, construction, tail construction slighty modified.
W.S -35-1/2"
Lt.- 29.0"
W.A.- 214 sq. in.
RTF- Weight 16.2 oz
Controls- R/E/T/A w/steerable tailwheel
Motor -AXI 2208-26
Prop- 8 x 3.8 APC Sloflyer
Battery-TP 3s 1320 and Kokam 3s 1500
RX -FMA Direct M5
Servos-Hitec HS 55's
ESC- C.C. Thunderbird 18a
Covering- Coverite MicroLite
The little Hog flies great! Also a great nostalgia model for the "returning" R/Cers who are interested in electric.
Also converted a couple of the .020 FF "Old Timer" replicas, I'm using a LensRC outrunner on these.
To Hoppy. how's that Decathalon working out? I have the same kit (in box, 7th box from the top of my stack!) and a Hacker B20 15L sitting around, lonely and unused. What's the RRF weight? Batteries? Did you change to bolt-on wing?
Thanks, Ron

hoppy
01-07-2006, 02:28 PM
Hi Ron,
The Decathlon doesn't know it's electric...LOL Flies like a, well, Decathlon, fast and aerobatic, needs room and a long approach compared to the foamies. The AUW is 25.7oz with a 1800mah 3s lipo pack. The kit builds nice and I made no effort to reduce the weight. It has a lot of light ply in it and perhaps 3-5oz could be shaved off if one really tried. The wing is rubber banded on which is not too cool. The firewall was moved to the front so I could mount the outrunner on the backside of it with the shaft going through the fw.

I like your Astro Hog. I'll have to add that to the 'sometime list' which just keeps getting longer.:)

Sky Sharkster
01-07-2006, 02:40 PM
Hi Hoppy, thanks for the info. I may move the box up! Always liked that plane, but when I looked at the kit (mail order), as you said, seemed like an overly heavy build, lots of ply. On the "SunBurst" color scheme, nice work! Did you have any problem with air bubbles? I've tried the "windex" or soapy water method but on large double-covers still seem to get some.
Thanks again, Ron

hoppy
01-07-2006, 05:13 PM
On the overly heavy build, that's good news and bad news. One day I was flying in a brisk wind at a slowish airspeed against the wind...when I turned it downwind, the loss in airspeed put it in a spin and headfirst into the ground. It happened so fast I was stunned. Only broke the firewall loose though....little PU and it was back in the air (with more attention paid to airspeed:)) The covering is solite and bubbling was not a serious problem (at least to my eyes, others may disagree). It is a scale-like flyer, none of the turn in it's length loops or 1 sec roll rates. Overall, I like it on large fields.

ragbag
01-09-2006, 08:36 AM
5660
Polk Hobbies Tiger Moth
Brush 400
3s1p1500 Kokam

5661

Sig Kadet LT 25
2808-12 Axi
3s2p4200 polyquest


5662

World Models Combat Zero
Axi
3s2p 3000 Kokam

Couple more in the cooker waiting to be converted. A Senior Telemaster and a Thunder Tiger Super Decathalon.
By George

Unbalanced prop
03-06-2006, 09:56 PM
My latest a SIG Four Star.

http://www.wattflyer.com/forums/showpost.php?p=48963&postcount=42

Doug

Gonsos
03-07-2006, 01:47 PM
A different Kyosho Corsair.
AXI 4130/16
CC PH60
6S2P 5200mAh (4 packs PQ 2600mAh)

FinnFlyer
03-07-2006, 04:53 PM
Built this plane as an electric. AXI 28/14/10, 8x6 APC E-prop, Kokam 2000mAh 3-cell 15C.
Clocked at 94 m.p.h.:eek:

Edd Spidell
03-12-2006, 03:19 AM
OV-10: Mega 22/30/3, Duraflite 3S4P (10AH), Phoenix 45, MAS 9x7 Triple (CR)
Twin Star: Fun 600/17, Kokam 3S4P (8AH), Phoenix 60, Graupner 9x7 (CR)
UltraStik: Fun 600/17 w/3.7:1 GB, Kokam 6S1P (3.2AH), Phoenix HV45, Graupner 12x8 Triple.

On the bench: C-160 Transall & EDF F-16 (Kyosho SQ Glow DF conversion), Rascal 40.

Regards,

Edd

flyranger
03-12-2006, 03:12 PM
I guess this qualifys as a "conversion". I built a park flyer version of the Sig Senorita from plans called the "Kadetito" which was drawn as a 1/2 glow model, 36in span. Stepped down all the balsa choices by one size (if plans called for 1/8" used 1/16" etc.) converted to tail dragger instead of tricycle gear to save weight, installed eflite park 400 outrunner. All up weight w/o batt is 17oz. Flys for more than 30 minutes on a 3s1p 2100ma LiPoly and 10x7 prop. Has rubberband suspension landing gear. ROG in about 4 feet at half throttle.:D

balsadust
03-14-2006, 12:08 AM
I have an "In Progress" Balsa USA Nieuport 28 1/4 scale set up for a AXI 4130/20 with 24 round cells and a CC controller. Its not quite finished (will be covering and painting very soon)
https://home.comcast.net/%7Etnunez08/ERC/IMAGES/23.JPG


cooper998

Unbalanced prop
03-14-2006, 12:19 AM
SWEET Balsadust!!:D Show us how it looks when you are done and a flight report please.

Doug

donjiskra
03-14-2006, 01:43 PM
Like the way you've done this. Great idea!!
How does the gear stay stable? Does it simply conform to the fuselage?
Neat plane, good luck!
Don

tim hooper
03-14-2006, 06:50 PM
Seagull Decathlon. 68", 9lb.

AXI 4120/18, 13x10 APC, 16 GP3300.

Went like stink until shot down by elevator glitch (suspect all the metal/metal joints at the inboard ends of the struts),

tim :)

flyranger
03-16-2006, 02:36 PM
Like the way you've done this. Great idea!!
How does the gear stay stable? Does it simply conform to the fuselage?
Neat plane, good luck!
Don

Sorry, missed your post. Here's some pics to show how it works. The original design is from a Great Planes Lil Poke parkflyer (low wing) which was a 1/16in music wire. No good if model is over about 12 oz - much too soft! Upped wire diameter to 3/32 in and post size from 1/8 in hardwood to 3/16in. I use two #64 bands on each side for the gear (Kadetito AUW with batt is 18oz). On my low wing parkflyer, the same post captures the wing and the landing gear, so the bands are always on the plane. The gear actually moves back and forth on landing on my very hard and uneven paved flying area. I can practice touch and goes with no problems. The base is 1/16 in aircraft ply with the wire held in place with 1/8 in square basswood sticks. Don't forget the "toe in" for stability!

e power
03-16-2006, 06:30 PM
Hello,
here is one of my latest conversions of a glow plane,
SPECS ; aeropro 110 from probuild in Dorset UK,
span 70 inches ,all built up artf from balsa ply and carbon ,designed for ys 11o-120 foursroke,powered by Axi 4130/16 on 6s lipo 15x10 apce ,weighs 7lbs all up and fly,s great,two part plug in wings and tail,
keep your watts up Euan.

donjiskra
03-16-2006, 06:37 PM
Flyranger,
The text and photos especially were a big help.
THANKS for taking the time to do that for me (and for others who may be interested).
Much appreciated,
Don

Jollyroger
03-24-2006, 08:01 PM
Sig LT-40:
Mega 22/30/3
MAT beltdrive 3:1
20 GP 3300
CC Phoenix 80
14X10 APCE
Goldberg Tiger 2:
Mega 22/30/3
MEC 2.5:1
6S Lipo
CC Phoenix 60
14X10 APCE
Not yet flying:
Sig Seniorita
Axi 2820/10
3S Lipo
Aerodrome Models Fly baby
jeti 30/3
3S Lipo

Jollyroger
03-24-2006, 08:07 PM
Oops, here's my Tiger 2:

tahoecrest
03-26-2006, 04:21 AM
This is my only glow-electric conversion so far. Just finished putting the finishing touches on today. It was a pretty straight forward and easy conversion, only requiring a few simple mods. The following is the equipment used:

Kit-Green R/C .30 Tigermoth Red/Silver Civilian
Motor-Hacker A30-10XL APC E 12x8prop
ESC-CC Phoenix 45
Reciever-Berg 5 DSP2 with Deans 2-piece whip antenna
Servos-(4) HS81 MG
Battery-TP4200 3s2p Prolite

Wingspan-50"
AUW-63.9 oz

Ready for maiden flight!

Jollyroger
03-26-2006, 05:58 PM
Tahoe, How's the quality of the plane? I have been waiting to see if somebody would convert this one to EP. I know Hibby Lobby has the same plane for sale and it appears to be a good quality ARF. I'm going to get a look at it when I'm at the Toledo Show.
Keep us posted how she flies with the Hacker outrunner.
Cheers and good luck jollyroger

tahoecrest
03-26-2006, 06:44 PM
jollyroger, The quailty of the plane is very nice and an expert job on the covering. Very scale looking as well with the rudder/elevator pull-pull setup and the wing wires. All were precut and very easy to make functional. The assembly instructions were a little lacking but if you have building experience and take the time to lay it out and piece it together before assembly, all should go well. Lots of small screws and nut/bolts to deal with. I also was looking into the Hobby Lobby offering which already has the electric conversion mods done but it is on back order until late April as well as only coming in the all Silver scheme. I really liked the Red/Silver civilian them better and the electric conversion mods were pretty simple. Take note that I originally installed a Berg internal antenna (as I have in all my other planes) but experienced allot of interference presumably from all the wires around the fusealge. To remedy the situation I added the deans 2-piece antenna on top of the fuselage behind the rear cockpit which can be removed for transport. Getting the antenna up above the wires seemed to solve the interference problem. I really don't like the hanging antenna.HAPPY FLYING!!!

mludwin
03-26-2006, 06:54 PM
17 years old, 9 since I've flown it. The good ol' Sportster is back.

Axi 4130/20, Jeti 77 and 8S2P 4000mAh Lipos

I am planning on using this a test bed as I build up a couple of war birds for the power plant. Small electrics have been no problem so far. This is my first enrty into .60 size kits with electric power.

tahustvedt
03-26-2006, 08:01 PM
YT-International/ESM/KMP - 120-size Spitfire XIV

Axi 4130/20
8S Poly Quest 4000 mAh
17x10 APCE
Hacker Master 77 Opto
5 V HV UBEC
6 GWS MGBB2 servos
1 Waypoint W-084 servo (retract-valve)
Futaba R149DP-35

AUW: 6 kg
Wingspan: 184 cm (72")

Flies great and has plenty of power. Sound system is being installed now.

wildbob
03-26-2006, 09:33 PM
Cermark Dave Patrick Ultimate 40. E-Flite Power 60 swinging an APC 14 X 8.5E prop. Using 4 Max Amps 2100 Mah 3S1P packs connected 6S2P through a modified FMA parallel adaptor supplying 930 Watts. Flying weight is 6lbs 2oz. Flys extermely well with great vertical. It will hover but not torque roll with the 14 inch prop, but does torque roll with a 15 X 8E prop but draws 56 amps with the 15 inch prop.

jhouvener
04-08-2006, 02:13 AM
IC engine kit conversions to electric-will probaly make a good convert IF the weight shown on the box is less than one lb. per 100 sq. inch of wing
area. This applys to mid-size models, 25 to 60 size. Lets say 50"-70" models. Does not apply to the little flitty types or giant scale. You want to come out at 21 oz. to the sq. ft. of wing or less. 16-19 most desirable.

I have the fleet bipe at 56" wing span. This kit was designed for electric to start with. Keith Shaw did put some input into the design. This is a very good flyer, am using the cobalt geared Astro 40 with 18 nicads. However I can't get it into my station wagon without taking wings off. I like bipes
therefor I aquired the Great planes ultimate bipe kit. It has 742 sq. in. of
wing area. Weight on box said 4 1/2-5 lbs. Looked like an ideal conversion.

Here are the specs as they should be written for modelers
Wing span-43 1/2 in.,-wing area-742 sq. in. (5.15 sq.ft.)
Weight ready to fly-88 oz.(5 1/2 lbs)-wing loading-17 oz. sq. ft.
Motor used-Aveox 27/39/1 with 4.44 P gear,( probaly the 27/39/1.5 would be a better choice, but used what I had)
Battery- The new twenty series polyquest 4s1p-3700
Prop-11x6 rev-up ( my last rev-up prop) or 11x6 master air screw wood,not the electric version.
What do I get
amps (after 10-15 bench run) watts in watts lb. RPM
40.5 564 103 10100
Flys like a trainer, but fully aerobatic, not 3d stuff. 10-12 minute flights
I would like to use a 12x6 apc E, but my esc is 45 amps rated
Sorry I can't send a picture, but I don't have the equiptment.
jhouvener

jhouvener
04-08-2006, 02:17 AM
IC engine kit conversions to electric-will probaly make a good convert IF the weight shown on the box is less than one lb. per 100 sq. inch of wing
area. This applys to mid-size models, 25 to 60 size. Lets say 50"-70" models. Does not apply to the little flitty types or giant scale. You want to come out at 21 oz. to the sq. ft. of wing or less. 16-19 most desirable.

I have the fleet bipe at 56" wing span. This kit was designed for electric to start with. Keith Shaw did put some input into the design. This is a very good flyer, am using the cobalt geared Astro 40 with 18 nicads. However I can't get it into my station wagon without taking wings off. I like bipes
therefor I aquired the Great planes ultimate bipe kit. It has 742 sq. in. of
wing area. Weight on box said 4 1/2-5 lbs. Looked like an ideal conversion.

Here are the specs as they should be written for modelers
Wing span-43 1/2 in.,-wing area-742 sq. in. (5.15 sq.ft.)
Weight ready to fly-88 oz.(5 1/2 lbs)-wing loading-17 oz. sq. ft.
Motor used-Aveox 27/39/1 with 4.44 P gear,( probaly the 27/39/1.5 would be a better choice, but used what I had)
Battery- The new twenty series polyquest 4s1p-3700
Prop-11x6 rev-up ( my last rev-up prop) or 11x6 master air screw wood,not the electric version.
What do I get
amps (after 10-15 bench run) watts in watts lb. RPM
40.5 564 103 10100
Flys like a trainer, but fully aerobatic, not 3d stuff. 10-12 minute flights
I would like to use a 12x6 apc E, but my esc is 45 amps rated
Sorry I can't send a picture, but I don't have the equiptment.
jhouvener

NUTS
04-10-2006, 08:11 PM
Sig 1/6 Scale Cub Kit
AUW 74.9oz (4.6lbs)
Hacker A30-12L Outrunner
Thunder Power TP4200x3S2P
Phoenix 40 ESC with a 5v Park BEC

Regards,
NUTS

9788

9789

9790

9791

Jollyroger
04-11-2006, 03:04 AM
Nuts, you sure built it light. What kind of diet did you use? Your Cub looks great.

NUTS
04-11-2006, 03:07 PM
It came in a little heavier than I aimed for, but with the set up I am using it really did not matter. It will ROG in less than 25'. "Not Very Cubbish".
Thanks for reminding me that I,m really on a diet at this time.


Regards,
NUTS

Jollyroger
04-12-2006, 12:35 AM
Well, I converted my GP .40 size Cub, which came out past 7 Lbs. without batteries.:( Very portly, but this kit is meant for a glow engine. Next time, either the Sig 1/5th scale or Adrian Page "Super Cub" .
Keep us posted on the flight tests.
Cheers John Z

NUTS
04-12-2006, 01:55 AM
If I had known about the Adrian Page Cub when I got the Sig I may have been tempted to get it. I may still get the Page Cub. It would be nice to have a Super Cub also.
As far as flight test go I've had it up 13 times, each flight around 14 to 17 minutes. Each time I push it a little more and still can't find any bad habits with the Sig.

Best Regards,
NUTS

Dereck
04-13-2006, 09:51 PM
Did a lot of back and forth with Adrian on the Cub issue!

Idle thoughts - if you want scale and J3, go with the Sig - you get the clipwing and full span parts in the one kit. If you want a super performing Super Cub that's close enough to scale for most, but real light, get the Page Aviation. It's so light, all he had to do to come up with an electric version really was to change the motor mount/fuel tank bay!

I test flew my Sig 1/5th at a big local funfly! It took off and flew around like it always had flown like that. Only sold it because big ain't better, but it sure is a PITA to haul around.

Have started my MEGA powered 1/6th clipwing conversion - have about half the port wing done so far. It's for a review / conversion article in QEFI. Power will be - shock! horror! - 3S or 4S lipo (based on the guy who supplied the review stuff knows me, and how I tend to fly!).

Once again - it won't be yellow! Sigs are all awesome flying models - bear in mind they actually got designed by modellers to fly well. I suspect many BARFs were initially "designed" by buying kits done by the likes of Sig and Adrian Page...

Funnily enough, I once test flew a GP 40 Cub electrocution for a clubmate. While fairly safe, it basically had one speed - fast! Sometimes it went up, climbing slow but flying fast. Then it flew around fast. Eventually, it came down, still flying fast. After a few passes, trying to persuade it onto a glide path, it landed - fast :eek:

Was one of few electrocutions I've seen where weight was added to the glow kit! He'd strapped the AF25G into the glow mount and fitted a complete cabin floor from ply to take the battery - the model must have weighed top end of the glow range before the 16 big round nimh pack went in. We never suggested he weigh it...

One day, will combine the design of the 1/6th Sig Cub clipwing with the structure of a 'real' Lazy Bee - NOT the BARFBee - and see how it really scoots. Lighter weight is still the best - and cheapest - performance upgrade :)

D

NUTS
04-13-2006, 09:59 PM
Hey Dereck

Good to see you lurking around here.

Regards,
NUTS

vision
04-14-2006, 06:29 AM
My latest is the Great Planes 160 size Ultimate bipe.

PJS 3D 10000 Brushless Outrunner Motor
MGM TMM 120-3s Z-Series Controller
(2) Tanic 7300mAh 5s2p packs in series
(Soon to be changed to Poly RC packs)
67" Wingspan
16lb Flying Weight

9902

Another is the Hangar 9 P-40

PJS 3D 5000 BRushless Outrunner Motor
Castle Creations 110amp HV Controller
1 Poly RC 3700mAh 4s + 1 Poly RC 3700mAh 3s in series
8lb Flying Weight

9903

These are not "Company Aircraft", but mine that I love to fly.

Jerry

Gouda
04-23-2006, 04:02 PM
CG Cub ARF with a 4120

Here is my conversion of this plane. And first post in Wattflyer..

Not hard to do, but I am not completely happy with the quality of the plane. But that's another story. I'm just finishing up CG floats for it now. Has not flown yet. Planning on 5S 4000 lipos. 115 oz not including the ESC or battery. I figure it'll come out to about 8 lbs ready to fly without the floats. Lots of wing, so should fly very scale like...

Doppelganger
04-23-2006, 04:40 PM
A different Kyosho Corsair.
AXI 4130/16
CC PH60
6S2P 5200mAh (4 packs PQ 2600mAh)

Gonsos, how does that setup fly your plane? That is a .40 size yes?

Steve

jhouvener
05-02-2006, 05:40 PM
The GP ultimate bipe at 43.5" w.s. makes a great kit to convert-742 sq.in.-came out at 87.4 oz-wing loading 16.97 oz. sq. ft. Using the aveox 27/39/1 with 4.4 maxon gear. ( robbed it from my old LT-25, my test bed airplane with 198 flights) 11x6 rev-up (my last one) use 11x6 master airscrew wood, instead (not the electric version) draws 40 amps, 564 watts input-103 watts lb. input. Put rudder and elev. servos in aft fuse.
use hitec 85 mg. for these. RPM with this prop is 10100. Put hatch for battery between the cabane struts. Battery is polyquest 4s1p 3700-20c.
Even though battery is rated 20C, I will not go over 15C at the most.
baby these lo-pos for longer life-I hope. Airplane fits in my car with wings on. Flys all aerobatic manuervers, (no hover) The wing attachment is quuite unique, two nuts on top of cabine, unhook one clevis on each aileron and pull top wing off, two bolts on bottom wing and off. The end struts are pressure fit, no bolts, screws, wires, etc., to mess with.
Nothing flys like an ultimate. however on GP kits, I have an easy sport .40
that I was going to build for my buddy and electrify-no way on this one, I think I will build a kitchen cupboard from the looks of the wood in this one.
Jhouvener

enrique1123
05-04-2006, 06:20 AM
Here is a couple of neat planes.

Electrick
05-10-2006, 04:00 AM
Here's my GP Stearman N2S-4 electric conversion, flown at SEFF 2006 for the first time.

Power is a brushless Feigao 54084-12XL/5.2:1 GB swinging an APC-E 16-10, Jeti Advance 77 OPTO, and TrueRC 8000 mah 8S2P LiPo battery packs (two 4S2P in series). AUW is 13 lb., pulls about 43a and about 1200 watts.

Rick

Grasshopper
05-10-2006, 05:15 AM
Beautiful plane Rick! How long are flight times?

Tom

Electrick
05-10-2006, 03:42 PM
I'll have to let you know. I have only flown it once so far, for about six minutes. ;) After making some minor landing gear repairs, I hope to finish flight testing this weekend.

With the 8000 mah pack, I should be able to get 15 minutes at least, if not more. I needed extra ballast to balance the plane, so I opted to install useful weight instead of lead. The plane balances perfectly with no added weight with this pack.

Rick

Grasshopper
05-10-2006, 03:58 PM
It would be great to see a video in flight. I love the old Stearmans.

donjiskra
05-10-2006, 05:10 PM
Good luck with the maiden flight.
Sure looks awesome. Congratulations!!!!

jhouvener
05-11-2006, 03:25 AM
Adrian Page actually has two super cubs now designed for electric, the first is the 80" w.s., the latest is the 40" w.s.

I built the 80" super cub when it was designed for a glow four stroke and converted it to electric. I remember calling Adrian and asked him if any-
body had converted it to electric yet. This was about 3-4 years ago. As far as I know, I was the first to do so. Since than, Adrian has seen the
light and went electric version on the cubs. I might just have to build the little 40" just to match the big one.

Go to www.adrianpage.com (http://www.adrianpage.com). I will give full specs. on the 80" version at a later date. crank in a little rudder with aileron for nice turns.
J. Houvener

enrique1123
05-17-2006, 05:35 AM
This is an oldie but goodie, .25 Right Flyer, no dihedral in the wing with bolt on wing kit from Dubro. It flies great and I am using a Himodel 2908-10 with an APC 10x5 and 3 cell 4000 mah

jhouvener
05-28-2006, 04:24 AM
I sure wish more manufactures would come out with more kits in what I call middle size, i.e.-50"-70" wing span, or even more ARFS designed in that size for electric. The trouble with those little 30"-40" arfs is that they are so delicate and also too sensative to CG position. I have only put together one smaller arf, the mini funtana, and I hate that sucker. By mistake I put the battery in about 1/4" too far forward and when I cut throttle that sucker dove straight down. I had a hell of a time landing it, of which I damaged the cowl. As soon as I order a new cowl, I am selling that beast and back to my 50"-80" kit build aeroplanes, that I can fly in the usual 10-20 mile winds we have mostly. The best sport airplane I have ever built is the Fusion, a 57 1/2" wing, all lazer cut, designed strictly for electric and nothing else. This will do any aerobatic manuever that you can think of, except hover. www.electroflying.com

jhouvener
05-28-2006, 04:27 AM
:) I sure wish more manufactures would come out with more kits in what I call middle size, i.e.-50"-70" wing span, or even more ARFS designed in that size for electric. The trouble with those little 30"-40" arfs is that they are so delicate and also too sensative to CG position. I have only put together one smaller arf, the mini funtana, and I hate that sucker. By mistake I put the battery in about 1/4" too far forward and when I cut throttle that sucker dove straight down. I had a hell of a time landing it, of which I damaged the cowl. As soon as I order a new cowl, I am selling that beast and back to my 50"-80" kit build aeroplanes, that I can fly in the usual 10-20 mile winds we have mostly. The best sport airplane I have ever built is the Fusion, a 57 1/2" wing, all lazer cut, designed strictly for electric and nothing else. This will do any aerobatic manuever that you can think of, except hover. www.electroflying.com (http://www.electroflying.com)

eal757
06-06-2006, 05:50 AM
I wish I could put my pictures in, but can`t figure it out. I haqve converted a Great Plane Profile 38, which flies great and goes like the wind. A Combat models A-10 with midi 90mm fans. This will never fly, because I can`t afford the motors, ESC`s, and Batteries for it. A Top flight C-47, built into an AC-47 "Spooky" with guns. Flies great, but will upgrade motors, to tow gliders.

Dbono99
06-12-2006, 11:24 PM
Hi All Here is my Sig Kobra conversion.Built pretty much stock, except for some air cooling holes in the firewall. Also made it a tail dragger.

Hyperion-Z3025/08
Titan 50 ESC/bec
Hyperion 3s2p4200
APC e 10/7
(1) Hitec 85mg for the ailerons
Hitec 81's for the E&R
Futaba 127 reciever
AUW 53 oz
About 400 watts and 40 amps at WOT..Only got 2 flights so far, moslty at
1/2-3/4 throttle.

Dan

Dbono99
06-12-2006, 11:30 PM
For some reason they weren't uploaded in the previous post? My pic files are too large?? Oh well

ragbag
06-12-2006, 11:51 PM
Hereis one that flies well for an ARF, followed me home one day and I ordered a new cowl.


12785 12786 12787
12788 12789 12790
Axi and Lipos.

In another thread I have the LT 25 conversion, 63" wing span.

http://www.wattflyer.com/forums/showthread.php?t=1012





.

thunder1
06-13-2006, 12:29 AM
Here's a few:

ragbag
06-13-2006, 12:43 AM
12802 12803 12804

This was before I learned how to use the camera better.



.

Doppelganger
06-13-2006, 01:12 AM
Here's a few:

Is that blue one a Bearcat? Looks good. What size is it?

Steve

thunder1
06-13-2006, 02:03 AM
Steve, the blue model is a Bearcat. It's from here:
http://www.rc-dymond.com/index.php?productID=742

Dymond claims it's 57" wingspan but it's really 53".

Doppelganger
06-13-2006, 02:30 AM
Cool. Looks great! What retracts did you install? Also, how is the quality? I'm considering buying one of these. Was just curious about quality, and flight characteristics. Thanks for your time.:)

Steve

thunder1
06-13-2006, 03:37 AM
Steve, the Bearcat is very good quality. The fiberglass is really well done. It flys more like a sport plane than a warbird due to it's stubby wings and light wing loading. There were only a few issues that I had with the model. Here's a link to the build thread:
http://www.rcgroups.com/forums/showthread.php?t=457278

Doppelganger
06-13-2006, 04:07 AM
Great. I'll read the thread carefully. Thanks again Bro.

Steve

torqeroll
06-14-2006, 04:22 AM
102 somenzini yak, neu motor 2215 2y, my own design and built 6 to1 belt drive gear box, 13 s 8000 mah thunder power and schulze 40-160 esc, spinns a custom 31x18 prop. unlimited verticle and hovers under half stick.

thunder1
06-14-2006, 06:43 AM
torqeroll, Your Yak is INSANE! Any video? What kind of flight times do you get? You're up around 5KW, right?

Rugar
06-14-2006, 08:29 AM
102 somenzini yak, neu motor 2215 2y, my own design and built 6 to1 belt drive gear box, 13 s 8000 mah thunder power and schulze 40-160 esc, spinns a custom 31x18 prop. unlimited verticle and hovers under half stick.

WOW! That G/B is a work of art!

torqeroll
06-14-2006, 09:29 PM
Thanks For The Nice Words Guys, Just Foolin Around In My Garage, Love Making Stuff. I Just Change Over From The Castle To A Schulze 40-160, The Castle Gave Me Problems From Day One. The Schulze Is Workinfg Perfect And Will Go To I Think 14 S. I Was Using 12s With The Castle But Now I Went 13 S , It Was Pulling About 5.5 Kw On 12 S , But Only About 9 Minute Flights , Im Hoping Now With The Higher Voltage It Will Bring The Amps Down And Bring Up The Duration. Has Plenty Of Power. I Wish I Had Video, No Body To Take It , Somebody Come To Miami And Shoot Some Vids??? The 3-d At My Field Su#$ks , Im Basically The Only One, No Body Cares To Learn , Take Videos Or Nothing, Gave Up On All Gas And Nitro. Only E- Helis And Planes Now!!!! Luv It!!!

Jeff Boyd 2
06-15-2006, 12:03 PM
Torqeroll, that is awesome. Beautiful work . . will be a growing market for stuff like that. I'll come to Miami and shoot some vid for you . . I need a holiday ;) . . nice place.

Just Foolin Around In My Garage, Love Making Stuff.

I like fooling around in my garage too . . usually it's just something like pouring gas all over the mower trying to fill it :D . . wish I could make stuff like that.

Well done

torqeroll
06-15-2006, 09:28 PM
Torqeroll, that is awesome. Beautiful work . . will be a growing market for stuff like that. I'll come to Miami and shoot some vid for you . . I need a holiday ;) . . nice place.



I like fooling around in my garage too . . usually it's just something like pouring gas all over the mower trying to fill it :D . . wish I could make stuff like that.

Well done

i didnt go to school for this stuff i just buy a machine and learn to use it, trial and error, my lathe cost me 500.00 bucks cheap and its all-ready paid for itself. i didnt know how to weld , so i baught a miller sincrowave tig and learned , no i do beautiful aluminum beads. you just have to try.

come to miami and shoot some vids then you can fly it to!!!!

tahoecrest
06-19-2006, 01:46 AM
Here is my T-34 which I have just recently finished. It was a very easy conversion and I have 6 flights on her now. With an APC 11x7 E prop she has performance a little faster than the OS .46 version. With an 11x8 she is much faster but at the cost of reduced flight times. The following is the equipment used.
Motor-Hyperion 4120-10
ESC Hyperion Titan 50
Servos-(4) Waypoint 150 MG High Torque
Reciever-Berg 5 DSP2 with Deans Whip Antenna
Battery-Hyperion 3700 5s

She is a very fun plane to fly and even though I can't fly her in AMA sanctioned races, I can compete in club races as we have many T-34 owners. This one is the first electric though.
HAPPY FLYING!!!

Twmaster
06-19-2006, 02:08 AM
Tahoe, that is another nice plane you have there. Where are you getting those Hyperion motors? How would you compare them to the AXi's?

tahoecrest
06-19-2006, 02:24 AM
I picked up the motor/esc combo from Allerc.com. As far as comparisons it is suppoesd to be the equivelant to the AXI 4200 series motors. The largest Axi I currently run is a 2200 series so I really could not give you an accurate comparison. So far I'm very happy with the motor and look forward to really ringing the plane out so more and see how much she can give. I am able to reach competative speeds with the glow planes at about 60% and have been landing at about 8 minutes. The most I have used in a pack so far is 1.9 mah, so I should get about 12 minutes give or take at racing speeds.
HAPPY FLYING!!!

Glacier Girl
06-19-2006, 12:25 PM
Well here's my NitroModels 51.5" w/s P38.
Tower pro 2410-9Y's spinning 9x7 3 blades (counter rotating of course)
2 TP3S2100's sit under the canopy. Air retracts from South East Models.
Next up is the just released 90" version.:D

rfzl
06-28-2006, 03:13 AM
I don't know if this would qualify but does converting a plan for a glow engine to electric do? I took one of Frank Baker's plans from the AMA archives (1981 I think) and built it for electric.

Specs:
WS 66"
Weight: 5lbs
Motor: 2 x HiMax 2816/0890 with 8x6SF props
Bat.: 2 x TP 1320 3S LiPo 10C
ESC: CC Thunderbird 18
Static power is about 220W total! Translates to about 45W/lb and it flies at 1/2-2/3 throttle. I get about 7 minutes on a run before bringing it down. I have power to spare.

Here is a link to my site. These are images before painting the cowls. I had to redo them as the first set did not look right.
http://home.comcast.net/~fzl

I have other plans from Frank. I think the next one will be the Short Stirling. Should be interesting.

Ron

Unbalanced prop
06-28-2006, 03:45 AM
That is a sweet looking plane Ron!!:cool: NICE job.

Doug

NUTS
06-29-2006, 02:10 PM
The Sig Somthin Extra Fighting Gator. Here is what I have in it.
Himax 3528/1000, TP3C2P4200, CC60 with a 5VPark BEC and a 12x6 prop. It came in at just under 5lbs. AUW. It fly's well, plenty of power for basic acrobatics. With carefull throttle management I am able to fly for around 14 min.

Enjoy,
Nuts

hobbyshopguy
06-30-2006, 10:11 PM
I started with a HOB "Floatplane .10" -- few mods like shaping fuse bottom in a shallow Vee and adding dihedral. Lightweight fiberglas reinforcement on fuse bottom. PJS 800E and 8x4.5 on 3S 1500. Seems to work fine. Flown off water and hand launched at club flying field.

Geoff_Gino
07-27-2006, 03:50 PM
Well - here she is:

Hanger9 Funtana 90S
Axi 4130/16 drawing 34 amps from 6S Kokam 3,2 amp pack swinging an APC 16x6 prop. AUW is 4 kgs.

Flies very "sporty" but I think she needs an extended landing gear so that I can get a 17" prop on her for a bit more performance.

Fine for me at the moment as I am still at the bottom of my learning curve.

P.S. - Couldn't get my daughter to smile for the second pic. :o

Jeff Boyd 2
07-28-2006, 01:31 PM
Looks good, Geoff . . You may want to allow for an 18" prop. I think you may end up there . .

If you take as long to take pics as I do . . no wonder she wasn't smiling. The model was probably starting to hurt her toe . . :D

Geoff_Gino
07-28-2006, 01:41 PM
Thanks Jeff.

Jeff Boyd 2
07-28-2006, 02:05 PM
Geoff, for interest, what receiver and servos are you using ? ?

Geoff_Gino
07-28-2006, 02:32 PM
Geoff, for interest, what receiver and servos are you using ? ?

Find myself on the spot now :D how can I say this without opening the whole DX6 debate again.

Yes I am using my DX6 radio and Rx with JR539 servo's.

Did not go for any fancy mixes and used "y" leads for both aileron and elevator. A fellow club member has the same airplane with a 120 IC engine and I got a lot of pointers from him. CG is 3/4" forward of the recommended book distance and the throws have all been set to the factory low as high rates. I am presently flying on my low rates and have not gone to high yet. I use exponential and have set that to 60%, did find the elevator a little sluggish so I am going to reduce the exponential on them before I go up again.

Flies "sporty" at present and there is no thought of trying anything near 3D at the moment, which is why the low rates are working so well. As set up at the moment the plane is nowhere near 3D.

Redbeard
07-28-2006, 02:33 PM
Here's mine that I just finished.

Be nice, my first plane, my first post here. :)

Hangar 9 - Piper J-3 Cub 40
E-flite Power 60 Outrunner
Phoenix 80 Controller
TP 6s2p 4200 Prolite Lipoly
APC 15 x 8E
Hitec Supreme 8 Reciever
Futaba 1500ma NiCAD Flght Pack

-Dave

Geoff_Gino
07-28-2006, 02:44 PM
Here's mine that I just finished.

Be nice, my first plane, my first post here. :)

-Dave

You're to modest Dave - That's a great looking plane.

jhouvener
07-30-2006, 06:26 PM
About Funtana 40 convert.

It is too bad that the Funtana 40 is not set up the same way as the mini-
Funtana is in order to convert to electric. The way it is you have to take the wing off every time to change batteries or get yo the electronics.

I am doing one up for a buddy of mine while he is gone from the State of
MI. He has cut out three different past articles from various r/c mags. They all state glowing praise on the flying ability, but they do not state the minus'es on putting this together.

First off, the landing gear sucks, not long enough to start with, AND, it is bolted on with steel screws. This is a no-no. Unless you land ever so gently on paved or golf course manicured grass off it comes, tearing out.
Throw away the small whell pants and small tires, use 3 1/4" tires instead.

Next the cowl, They have youscrewinginto the edge of the firewall, the firewall is only 3/16" thick. screws should not go into edge grain, ever.
Put 1/4 x1/4 hardwood on front sides of firewall instead.

It might be possible to make a hatch on top for battery, ( via mini-funtana),but it might weaken the structure. You also have to do some surgery inside to make a battery tray. Pre- installed strings to pull through servo extensions would be nice.

A longer carbon-fibre landing gear is available from www.fiber-lite.com (http://www.fiber-lite.com)

John R. Houvener

jhouvener
08-06-2006, 01:57 AM
Convert Funtana 40 to electric--part 2

I am almost finished now in this c0nvert for my buddy. The plus's are the model was boxed very nicely, no wrinkles or broken parts. Construction is good, but like I said previously, sure would be nice if canopy top would lift off like the mini-funtana for battery access.

Ordered a carbon fibre l.g. from www.fiber-lite (http://www.fiber-lite) for extended gear length. The alumunum gear with the kit just barely gives clearance with 14' prop.
Ordered servo extensions from MPI (MAX PROD) these are 20 ga. twisted
wire servo extensions. Also the Hi-Tec larger mg servos. Drilled out the stupid T-nuts for landing gear. The steel screw that threads through the landing gear into the metal T-nut gaurantees you that you will rip out the plate or bulkhead on anything but the most softest landings. Instead I have used what they call well nuts for landing gear attachment. This is a
rubber dowel with a nut in one end and like a washer (rubber) on the other end. They are about 1" long, and come in 1/4" and 3/8" dia. They come with 6-32 and 8-32 bolts which has a steel washer laminated on it. Drill a 1/4 or 3/8 hole through the landing gear plate, insert the well nut thingy through the hole, set on the l.g. install the bolt, and start tightening, the rubber swells up behind the plate and locks it in. I get mine from Prime Industrial fasteners in Midland, MI. They set you back about .15-.25 cents each. I have used this same set up, also for motor mounts. Works supet.

Also, the box said 56" w.s.- I measured the wing and it is 59" w.s.
Also, throw away the 1/16" push rods and the super soft nylon clevis'es,
they are junk, use good steel clevis. The threads on the push rods must be metric, they don't thread into the 2-56 steel clevis.

I had to perform surgery inside to make a battery tray, still have to take the wing off. I gave up on the idea of trying to put a hatch on top.

I have another friend who put the funtana 40 together, he is an excellant flyer and the plane flys real good, however he ripped the landing gear out even on a pretty good landing. By the way, I also discarded the small wheel pants and small wheels. Put on 3 1/4 or 3 1/2 light wheels.

John Houvener--questions- jhouvener1@tm.net

Dereck
08-06-2006, 03:41 AM
John
I found out over the course of several glow to electric conversions and a lot of flying of 60" span / 6lb-ish models that even kits have abysmally bad UC mounts and every ARF review I read seems to fault their UCs

In the end, I found that the first requirement - which you have - is a high quality replacement UC with enough prop clearance, which the slimer conversions will never have "out of the box".

The next is to ensure that the model and the UC remain in the correct order throughout those less than stellar touchdowns even the best of us do once every decade or so :rolleyes:

My favourite method is based around alloy "L" section strip, as found in most hardware stores - the 1/2" x 3/4" or thereabouts has done fine for me. This I cut into around 3" lengths - model dependent - and is then epoxied to the fuselage insides. I usually epoxy the 3/4" leg to the sides. The fuselage bottom, whatever it was, is replaced by 1/16" Birch ply - not Liteply, that stuff gets little use in my shop, being basically too heavy for airframes and too weak for about anything it gets used for. I'll make my bottom piece from the firewall to the wing mount former, as all my models have bolt-in one piece wings. The main aim is, when the glue's dried, that everything is tied to each other.

The UC is then bolted to the alloy L strips through that new, dependable ply bottom - I'll either tap the alloy or epoxy a T nut to it, placed upside down - both have done me fine. I don't mess with nylon bolts, rather use 1/4" steel bolts. If this lot gets destroyed, its usually because the rest of the model has been trashed around it (Olde Englishe saying - "it isn't really a crash unless the rudder's broken" :eek: ).

This set-up was developed over numerous landings with my converted 20 cell Great Planes CAP 232 - a 6-1/4lb brute that had to be landed hot every time, as CAPs will snaproll if you think about the word...

Having had a lot of landings with big electrics where model and UC finished the landing rollout in different places, I can assure you that spending a little time and adding a little weight to your UC fixing is well spent!

Hope that helps

Dereck

Twmaster
08-06-2006, 04:50 AM
Dereck,

Thanks for that tip on UC mounting. Will use on the next project. (Providing I live that long! :rolleyes:)

Erik van Schaik
09-22-2006, 09:58 AM
Hi Guys!

Just want to show off my glow to electric conversion of the Sig Piper-Cub .40 kit:) .

I started to completely build from the original IC plans (1.80m WS) and ended up with 350gram for the plane (no typing error! threehundred and fifty) including carbon landing gear, covered, linkages, motor hatch(glass), everything exept for the radio equipment and drive setup.

At my setup was graupner 480bb-race geared and NiCd800 and ended up at 800grams and it flew like a dream only at half throttle.

I recently binned this setup and I am currentle flying an Het-rc typhoon 6-3d (specs: 1500KV,6-10A,90Watt,29mm Dia,36gr,9x4,3s1p,10A esc) with an apc SF10x4 slimmed prop (12A draw full throttle on 3s1p kokam1500 pack) .
weight ROG is 550grams. taking of with half throttle. flying scale performance!

enjoy!

Erik

Erik van Schaik
09-22-2006, 11:22 AM
vdo of pipercub taking of at half throttle (must be aproxx 60 Watt or so):

http://members.home.nl/ehj.vanschaik/

have fun!

Erik

kepople
09-22-2006, 03:44 PM
Here are some of my conversions from the past:
Great Planes Venus (still fly it every week)
Seduction Freestyle (crashed)
Miss America P51 (sold)
Kyosho GeeBee (Still have it)
Aeroworks Edge 540T (sold)
72" Somenzini Yak (still have it)

There were others, but I dont have photos.

Kirby

wdahlstrom
09-23-2006, 06:24 AM
Some great conversions posted here and I'm inspired to add my latest the Advanced Scale Models 80" wingspan twin engine DeHavilland DH-88 Comet the 1934 England to Australia racer.

http://www.putfile.com/pic.php?img=3321278

http://www.putfile.com/pic.php?img=3358403

and here's a video of our maiden takeoff which was rocky but ended better than might appear with no real damage.

http://media.putfile.com/Comet-Maiden-takeoff-slow-motion2

Our setup:
2 Hyperion Z40-25's
APC 15x10 e-props
2, Jeti 90 Opto ESC's
Lipo pack per motor: ThunderPower 5s (18.5 v) 6000 mAh packs
ASM's pneumatic retracts
9volt spotlight in the nose
Ready to Fly Weight: 15.08 lbs.
Wattmeter reads 1000 watts at 52 amps per motor which should be plenty.
Balance with wheels up requires these loooooonnnngggg lips packs to be way up in the nose running aft to a point 5" from the front end of the servo tray.

Jollyroger
09-23-2006, 10:31 PM
Your Comet is a beauty! (Drool) How are the Hyperions working for you?
I have been using a couple smaller ones :3013-14 and a 3025-8 both are very nice motors and produce lots of power.
I'm looking to use a 4020 or 4025 for my Sig Citabria.
The Hyperions ssem to be more efficient than the Axis or the E-Flight outrunners. Don't know yet how thay stack up against the Pletts or Actros, but they are less expensive and use the latest tech.

wdahlstrom
09-23-2006, 10:54 PM
If you watch the video you'll see that it was the big Hyperions and Big 15" props that pulled the Comet out of her stall. The tail literally dropped from lack of speed and lift coming out of that last gyration to the right and then those big Hyperions kicked in and she clawed her way back to flying airspeed. Speed is Life

Red Scholefield
09-28-2006, 03:30 PM
Here is a Sig Rascal ARF converted with AXI 2826/12 with 3S4400 pack, APC 13 X 6.3 E Prop.

Then my old 40 FP powered Tango autogiro got the treatment, same set up as the Rascal.

Both great flyers.

pd1
10-03-2006, 04:06 PM
My first posting here with pictures, hope this works.
CMP Zero 53 in wing, E-Flite 60, Flies light a freight train, I'm going to make a larger wing for it, just because I like the looks.
Raidentech P-38, 2, E- Flite 480's flies nice, but every time you land you used two bat packs.

Latscho
10-07-2006, 09:24 AM
here is my little p47
-4130/20
-8s1p/4300 xCell
-jeti adv.77opto
-4blade 12c varioprop 13,9"/9-11

Holm und Rippenbruch
Thorsten

NUTS
10-16-2006, 09:30 PM
Here's a few picks of my Great Planes 40 Ultimate.
Himax 3528/1000, 12x6 prop, CC60 ESC, TP42003C2P,
AUW 79.7oz.

Regards,
Nuts

Dereck
10-16-2006, 09:41 PM
Nice conversion Nuts - that one won't go away from my 'must build' list either. Recall a guy flying a MaxCim powered GP Extra on 20 x 2000 SCR at the last of the Great KRC meets, mid 1990s. While not many folk had decent electric aerobatic ships back then, a biplane was a real rare sight.

Did you do much by way of structural alterations to the model? I had a GP CAP 232 way back, ended up where only the cowl and rudder were as per the kit! I lost two ounces in the mainspars alone, and then built another fuselage that saved me around a half-pound.

Your Ultimate's battery - did you mean 3S2P?

Cheers

Dereck

NUTS
10-16-2006, 09:55 PM
Thanks Dereck,
Yes I did alter the airframe a bit to get the AUW down, "thanks to your advice on my 1/6 scale Cub build". Replaced most of the ply with balsa and quite a bit of the heavier balsa that Great Planes used in the kit. I cut a bit of the bottom of the cowl for my battery access right behind the fire wall. Yes I did use a 3cell 2p 4200mah. I don't need to fly on the prop, just the wing;)

Dereck
10-16-2006, 10:07 PM
Nuts
Your battery access sounds interesting. I've long thought of LiPos as the sort of thing you take out the model and charge in a sealed metal tank with the local fire brigade standing by, but I finally got around to buying some from FMA and they cheerfully sell an extension lead to allow for in-model charging. As Fred Marks has to be one of, if not the first US modeller to fly by LiPo power, am inclined to believe in-model charging of LiPos may not lead directly to Hades ;)

I recall most of the balsa in my GP CAP kit must have been on the run from the kitchen cabinet industry ...

Have long been a firm believer in flying aircraft by traditional means myself! You did good getting under 80oz all the same.

D

CWH
10-24-2006, 11:51 PM
First post, interested in the conversions mentioned. Have converted Hanger 9 P51, the first and probably the best flyer. Followed by Seagull Harmon Rocket 3, Seagull Sea Fury and Greaty Planes Stuka. All on TP 6S 3P (6000) AX1 4130/16 except Stuka which has Vortex 5065/420 all going well, but the latest is the Air Louise A26 (B26) with two AXI 4120/18 and 5S3P All Electric cells with Vario Props, a real good looker.This is thesecond one, first was lost when flying great on maiden flight and one ESC overheated and cut out, sahouldn't happen! Would post photos but can't work that out yet, thick Welshman!

thunder1
10-26-2006, 05:51 AM
Here's my Thunder Tiger F8F Bearcat conversion. It has a KD 63-28S motor from United Hobbies, a Phx 45HV ESC, APC 17x12E prop and 9s3p 6300 TP PLs. It has a wingspan of 63 inches and weighs 11 lbs RTF. It flys great!

Piperfan
11-21-2006, 04:44 AM
Built this Green Models Tigermoth and am working on the second.
E-flite Power 25
45 amp Pheonix ESC
HS81MG ailerons, Rudder, Elevator
2x TP 2100mha in Parallel
JR 6c FM micro
Larger 3' wheels
MA 12X6 prop

Glacier Girl
11-22-2006, 06:21 PM
How bout 90" of Lightning? Soon to be followed by the Hanger9 P40 and the NitroPlanes B25

thunder1
11-22-2006, 11:21 PM
GG, did you ever get your P-38 in the air?

Crash Test Dummy
11-23-2006, 02:29 AM
How bout 90" of Lightning? Soon to be followed by the Hanger9 P40 and the NitroPlanes B25
Wow, Brad that is sharp!! I forgot you were building that P-38. Very nice, how are you powering her? Did you do a build thread and I missed it??

CTD

Glacier Girl
11-23-2006, 08:53 AM
Sorry guys she awaits a field that will handle her size, ain't quite a "park flyer". She will go up next year. In the mean time it's building frienze time.
Just finishing up The Hanger 9 Camel, finished the Eflight 60" Cub, have a T33 waiting to be opened. And the fore mentioned P40 and B25.

Funny unrelated story. T33 has more miles on it then anyone will ever put on a bird. It's been across the ocean 5 times before landing at my door.
Have a bud in the UK who kits these, www.depronjet.co.uk (http://www.depronjet.co.uk), where I got my pair of 5 1/2 foot F16's from. Anyhow almost like a Tom Clancey novel, screw ups by USPS, Customs, and Secret Service, caused it to fly from the UK to US and back twice. Made the fifth trip unscathed after a couple calls to the various agencies. Lot of finger pointing done, especially when I mentioned they pulled a supposedly "suspicious" package not once but twice, never opened it, and loaded it back in uninspected condition on a transcontinental flight. Oh and that I had photographic evidence of it never being opened,and a USPS log of it's travel itinerary. The unasked "What If ?" question got them moving pronto. Head of UK Postal service contacted my bud, arranged to personnally pick up and deliver package to Coventry airport in England, and see to it's loading on the plane for trip #5. Customs and SS saw to it that it safely arrived at Kennedy airport here and was delivered to proper USPS personnel. USPS still living up to their normal bungling, delivered it and still show no records of it being delivered, even though it was sent registered air mail and had to be signed for, and in their hurry(?) never cancled any of the stamps on it . I must say though for all the trips it made, box was unscathed, not something I'm used to seeing in a package handled by the Post Office.:confused:

Jollyroger
11-23-2006, 08:45 PM
Happy Thanksgiving Everybody!

MTwallet
12-03-2006, 10:45 PM
WOW! There are a lot of nice conversions on this thread!
Here are the ones I've done so far...

Sedution Freestyle
http://www.rcgroups.com/gallery/showphoto.php?photo=14689&sort=1&cat=500&page=1

Thunder Tiger Spirit 3D
http://videos.pitsbros.com/Spirit3D.wmv

Sig Rascal .40
http://www.rsklogic.com/edkoz/files/rascal.wmv

GP Venus .40
http://www.rcgroups.com/gallery/showphoto.php?photo=26904&sort=1&cat=500&page=1

Sig Mayhem .40
http://videos.pitsbros.com/SigMayhem.40E_maidenflight.wmv

Fliton Extra 330 (almost done)
No vid or pics yet



MT

Red Scholefield
12-03-2006, 11:23 PM
Still cleaning the old slimers out of the attic. Here is the latest. Fun Fly - Eliminator, orginally with OS 40FS, now sporting an AXI 2826/12 pushed with 4S2300 A123 pack. Only one flight under very windy conditions so I don't know yet how it will behave.

12-16
About 10 flights now and it is as good or better than when it had the OS 40.

Glacier Girl
12-04-2006, 12:30 PM
Curse you Red Baron !!!!!
Snoopy gets a new ride.
Hanger 9 Camel. Eflite 60, 6S3700, CC60, Hitec 81's and 225's, 5 AA reciever pack, 16x8 prop. Not being able to find an adequet Snoopy, I made one.

PeterO
12-16-2006, 09:59 PM
Another Decathlon conversion.

Black Horse Decathlon
65" wing span
Hacker A20-12XL
Hacker X-40-opto ESC
APC-E 12x6 (may try 11x7)
ThunderPower 5S2P 4000mAh

wdahlstrom
12-16-2006, 10:16 PM
Glacier Girl:
How does your H9 Camel fly?
Is the Eflite60 scale like or does it provide more lively performance?
Can you go vertical for any distance?
Any power output specs you can provide would be greatly appreciated: watts, amps etc.

iFLYrc_Vic
12-17-2006, 01:38 PM
Here's my Thunder Tiger F8F Bearcat conversion. It has a KD 63-28S motor from United Hobbies, a Phx 45HV ESC, APC 17x12E prop and 9s3p 6300 TP PLs. It has a wingspan of 63 inches and weighs 11 lbs RTF. It flys great!

What is all of the black stuff on the motor mount that looks like velcro? Is that where you attach the batteries?

CHELLIE
12-18-2006, 01:47 AM
Hi Everyone, Does anyone know where to purchase a 20x44 mm aluminum cross motor mount, I need it for a D3648 brushless motor that I am installing in a Bi Plane, Thank You in advance, Chellie.

here is the Plane its going into http://nitroplanes.com/pubrelulbiar.html

STOP LOOKING :) I found them, I Guess Great Planes has a new adjustable brushless motor mount, they are nice,
I learn something new everyday :)

GPMG1250 small 20 to 24 mm
GPMG1255 medium 24 to 28 mm
GPMG1260 Large 28 to 36 mm
GPMG1265 Extra Large 28 to 36 MM

Mike Parsons
12-18-2006, 03:42 AM
CHellie,
Yep, Both Great Planes and Horizon has them for their Brushless outrunners.

NUTS
12-18-2006, 03:22 PM
Next Up. Kyosho 40 Size Spitfire.
Himax 3528/1000
12x6E Prop
TP 4200 3Cell 2P
CC60 with 5V Smart BEC
Hangar 9 40 Size Retracts
AUW 81oz
With it's eliptical wing this baby handles like a trainer. I know, I know, the retracts are not scale:eek: , I don't really care. It does make ground handling nice.
Can you guy's tell I like this motor set up. I've used it in my last 3 planes, I really like how the combo performs.

Best Regards,
Nuts

CHELLIE
12-22-2006, 03:41 AM
Hi Everyone & Happy Holidays to all :) I have a question, what size glow engine would this brushless motor be equall to, its a 3648 and its rated at 1000 wattsModel :
D3648-900
KV (rpm/v) :
900 kv
Voltage (v) :
11.1 voltage
No Load Current (A):
4.0 no load current ( A )
No Load Speed (rpm) :
9800 no load speed rpm
Load Current (A) :
28.0 load current
Load Speed (rpm) :
5400 load speed rpm
Propeller :
1510 prop size
Pull (g) :
1650 prop pull ( g )
G/A :
59 G/A
Motor Weight (g) :
168 motor weight


I am learning a lot here on wattflyer, I even scratch built a brushless pusher jet with what i have learned here, Thanks to All the great folks here, ;) Chellie

my pusher jet, towards the bottom of the page
http://www.wattflyer.com/forums/showthread.php?t=11389&page=16&highlight=pusher+jet

CHELLIE
12-22-2006, 04:14 AM
Hi Mike ( Big Dawg ) :) I think all of you are doing a great job in maintaining this Forum, everyone is so nice here, If I ask a Question, I get a responce back right away, I have check out other forums, But i like it here better :)
thank you for the links to the hobby shops, I saw some nice items that will be in my shopping cart soon :D
Happy Holidays To you and your Family, Chellie

thunder1
12-24-2006, 07:18 PM
Chellie, You should post power system related questions here:
http://www.wattflyer.com/forums/forumdisplay.php?f=17

ukrmaf
05-21-2008, 10:18 AM
Awesome aircraft


Here's one of my first conversions, back about '99: It's the 80" Graupner kit of the Canadian "Chinook" ultralight. This was way before BL motors and li-po cells. The setup was a Magnetic Mayhem 600 motor, geared 3.5:1, on 10 sub-C nicads, turning a 13x10 APC E prop (at least those were available by then:p ). It flew very much like a full size ultralight - slow take off, slow climb, and slow flying speed - so it looked extremely real in flight. The big prop, just behind the T.E., even sounded somewhat like a Rotax, thanks to the "Zagi" effect of the prop position.:D

wilga12
06-18-2008, 10:31 PM
Say Torqueroll....

Is the reason that you went to a reduction drive instead of direct drive strictly a financial move..??

A 31 inch prop sure takes a lot of Horse power to turn...What kind of static rpm's are you getting..??

Thanks......................Dave..

Larry3215
06-21-2008, 04:20 AM
Some great looking planes in this thread!

Here are four of my conversions from the last few years.

Dave Patrick 40 sized Ultimate bipe. It was flying on a geared Mega 22/30/4 and 6S2P 2100 lipos. It was fast and heavy!

The other bipe is a Great Plains 160 sized Ultimate. I had my Neu 1515 2Y geared 6.7/1 on 12S1P 5000 lipos spinning a 22x12 Mezjlik carbon prop. Just over 15 pounds all up and 3200 watts.

It was an awesome flyer!

I traded it for the next one - KMP 30% Yak. 87" span. Same power system as the GP Ultimate but 17 pounds all up.

It is also an awesome flyer.

Im looking to convert it to 18S A123 power when I can afford a Castle SHV controller.

The big Cub is an old Hanger 9 ARF that is no longer made. It actually belongs to a buddy of mine but I helped pput it together and we both contributed parts and power system stuff. It has a Knotronic Tango geared. Weere running 5S 5000 packs. It flew great. Very scale and majestic in the air.

jbrooks01
06-29-2008, 05:30 AM
I converted a H-9 P51 PTS, Wanted a 40 size Warbird. Used an AXI 4120/14, 60AH Scorpion ESC (Switch Mode BEC), and a 4s 4000MAH LIPO. Removed all the Junk and the plane flys great. At 6 lb 2 oz and a wing loading of about 26 oz/sq ft it is a floater.

spikkkkkkkk
07-14-2008, 07:47 PM
i converted a proctor nieuport 11 to electric, it has a 61 inch wing span and weighs 8 lbs 5 oz. it took 7 months or 1100 hrs to build this bird.

EpoweredRc
08-19-2008, 12:25 AM
I wanted to know info on that Edge 540 that kepople had but I see that was 2 years ago, ha I never looked at this thread I guess

RogerQ
08-20-2008, 03:08 AM
i Have converted my Goldberg Eagle (the same plane I solo'd with some 28 years ago) from wet powered, to electric. Really, I have set it up so that in about 15-20 minutes I can fly it electric, or I can fly it wet powered.
I have a Saito 45 with a 8oz tank for wet powered. For Electric I have a
Astro Cobalt 25, with an Astro 80 ESC. powered with a 14.8 V- 4-Cell 3800
mAh Magnum Lithium Manganese battery. It isn't the hottest thing in the world, but it does fly well, quietly. I get 15-20 minutes flying time with the battery. I love the LmgN battery. it is safe, it is powerful, and it is easy to charge/discharge/use.
Wet powered, I get the same amount of flying time, using the throttle about the same also. I have the Saito mounted on a plywood plate, as is the Astro Cobalt 25. All I have to do is unbolt the plate from the hardwood mounts glued into the engine area, and put either the wet motor, or the electric motor. I do take the battery/tank out and exchange it for the other type of battery/tank. Pleased I am. I bought the electric system
for 50.00 ready to run, including the motor/gearbox and the ESC. I have had the Saito 45 for at least 15 years, and it is as strong as it was new.
The balance point seems to stay right where it should be, so.....
Take care, and try this easy way to exchange types/styles/kinds of power.
Eagle Roger

gfdengine204
08-20-2008, 03:33 AM
Roger,

Do you have (or can you take) pics of your engine/motor mount system. That is quite ingenious a method to fly either way. Since it's electric, we won't pick on you for flying it wet. ;)

Amazing it balances all the same; quite fortunate and very nice!

BaldEagel
08-25-2008, 10:43 PM
Converted a Composite ARF 2.1M Edge to electric with 10S LiPo's, Pletenberg in spinner motor turning a 22x10, thread on conversions.

Mike

Lieutenant Loughead
08-25-2008, 11:04 PM
Does anyone know about this one?

http://www.raidentech.com/zefi4044scni.html

It's never in stock... :(

pd1
08-26-2008, 12:18 AM
Does anyone know about this one?

http://www.raidentech.com/zefi4044scni.html

It's never in stock... :(

That's the one I have.
This place has them in stock.
http://ak-models.com/mm5/merchant.mvc?Screen=PROD&Store_Code=AKM&Product_Code=CMP042&Category_Code=CMPWarBirds

I have an E Flite 60 with a six cell pack.
It came out a little over 7 pounds ready to go.
Flies like it's on rails, point it and it goes.

Could use a little more wing area though.

Paul

tr6world
10-16-2008, 09:04 PM
Was a .40 nitro burner that I flew 20 years ago. Got married and my hobby was quietly put away in the basement until this past spring. Brought the cub back up stairs, converted it to electric and she flys amazing! See re-maiden as electric below

http://www.youtube.com/watch?v=ABsp8hUwD7U

and the landing here

http://www.youtube.com/watch?v=5ZNv9nHfEsQ

Here are the specs....
Motor: Scorpion Brushless Outrunner 3026-8 1212KV motor producing 1000 watts of power
Prop: 12" x 6" APC E
Speed Controller: Scorpion Commander 70 amp ESC
Batteries: 2 - 11.1V 4000 mah lipo 25C COPPER TAB HECELL

No Mess, Clean-up, Quiet....... I love electric!

Mike;-)

kyleservicetech
10-28-2008, 06:08 PM
This is the Hanger 9 model powered by a Hacker A50-16S motor, with APC-E 16X12 propeller. Batteries are 6S2P A123 cells. The motor pulls 47 Amps at full throttle and turns the prop at 5950 RPM right after a charge cycle. The Motor RPM drops to about 5800 RPM after running 70% capacity out of the battery. The motor and battery pack has only about a 10 Degree F temperature rise after a flight.

Flight times are around 7 minutes, pulling about 2300 MaHrs out of the A123 cells. That's plenty of reserve for go-arounds and so on. I never fly more than about 75% capacity out of these batteries, and have found that after pulling 195 Amp Hours out of the battery pack this past flying season, the battery has lost less than a percent or two of its original amp hour capacity when new. (I've got my design battery monitor on this model that records total flying time, total Amp Hours for the season, plus amp hours for the current flight, and amperes pulled during the flight.) The setup turns the prop at the same exact RPM as when the batteries were new.

The model is built strictly stock, and weighs in at 7 pounds, 15 ounces. The Radio is a Spektrum DX7 with 5 servos. The Ailerons are mixed with flaperons, the dual elevator servos are also mixed from the transmitter.

Take off is about 40 feet or so off of grass, the model will climb out at about 60 degrees, out of sight. It will NOT hover, but then, this model is not a helicopter:o. The model will do just about any acrobatic manuver desired.

One interesting thing found with this model: It is NOT a good idea to abort a landing with 50% flaperons and put on full power, especially if the model is only a few feet above the ground! The torque of the motor in this model can result in the whole airplane rotating 45 degrees to the left before the model accelerates sufficiently to re-gain aileron control:<:. This happens in only a second or two!

Tried it twice, got away with it twice!

BaldEagel
10-28-2008, 06:21 PM
I use flapperons for landing also, but I have put a switch condition on them for landing and a mix to the throttle so that they go back to neutral if I open the throttle for a go around.

Mike

kyleservicetech
10-28-2008, 08:44 PM
Bald Eagel
Thought about mixing the flapperons with throttle, but like to use 25% flapperons for take off.

Also mix flapperons with elevator so applying flapperons with flap switch does not affect straight and level flight.

BaldEagel
10-29-2008, 12:09 PM
You can do all of that by setting up a landing condition from a switch so the reflex on the ailerons only works when the landing condition is sellected, any other conbination can also be switched in or out, I put reflex on a side slider for harriers etc, and flapperons on my 3D condition setting, all of this is controlled by one switch including rates so I don't have to switch too many switches.

Mike

Hounder
11-20-2009, 04:47 AM
Have had this plane for 20 years and fly the snot out of it. Finally got around to converting it and it flies great.

http://www.youtube.com/watch?v=knQc1nySuwU

RogerQ
11-22-2009, 02:04 AM
Kev

I am sorry it has been so long since I wrote my note about converting the Eagle from wet to dry, and back. I will try to take some pictures, and then put them in the forum, but don't hold your breath. I am fairly computer illiterate and putting pictures on the forum is something I have never done before. If I don't get it done, if you like, I can hard mail you some drawings or pictures. I will be glad to share my home e-mail address/and/or hard mail address to pull this off. RogerQ

tommytorino
11-23-2009, 03:59 AM
Sunday Flyers

Glacier Girl
11-28-2009, 09:18 PM
Cool looking birds Tommy.

Well I finally got back to building again. Here's a couple of them.

Gee Bee R3 from Esprit, picked it up over a year ago and just got it done. HK 63-64A 280kv motor, CC 60 esc, only running 6 cells right now, spinning an APC 14x13x3.
Hidden linkages for rudder/elevator, repositioned the aileron servos so only the arms show. Cowl is magnet attach, and I built a cockpit and added a pilot from my T28.
Great thrust, around 65mph, if I want more speed I have a 14x16 2 blade that will put it around 80 mph.

HET Me-262, W3 motors spinning stock fans, on 4S5000. Again hidden linkage, factory did the elevator I did the ailerons. Sonic electric retracts that I grafted into her. Took me nearly 3 weeks to do em, involved redoing the wing spars and mounts inside the fuselage, building the double door front landing gear doors that are sequenced to open and close at opposite times. Buried 1" tall mains in a 1/2" thick wing, built pods to cover the exposed portions.

Paint is PPG Vibrance Rattlesnake. Changes from black to met green, to met brown, to met copper, to met maroon, and a couple more depending on veiwing angle.

Should clock around the century mark speed wise.

Last one is the NitroPlanes 50, Cessna 182. E-Flite motor, CC esc, 6S3700, 14x10 Graupner prop. Added working nav lamps, 6 landing lamps (4 in wings, 2 in cowl) molded in a flashing red lamp on the vert stabilizer, and a white strobe in the belly.
Built my own circuit boards to run the flasher and strobe.
Per the forums the nose gear wire is a weak point on it, and the Robart strut suggested is way too much, so I built my own out of steel tube and rod. Had spare springs and bushings for it so no biggie.
In the final stages with this one now.

tommytorino
11-29-2009, 05:24 PM
Paint is PPG Vibrance Rattlesnake. Changes from black to met green, to met brown, to met copper, to met maroon, and a couple more depending on veiwing angle.



Now THAT looks like ti should be flown by a James Bond type super villain! ;)

Glacier Girl
12-08-2009, 03:21 AM
Now THAT looks like ti should be flown by a James Bond type super villain! ;)

LOL, nah, more to keep the PC folks happy. No insignias, no guns, and most certainly no correct color skeem.

Ah well, wait till you see the next one. Even though I'm in Florida now, I still got the winter build itch.
Ordered plans and having the wood cut on it now.

And me being different and the same, it has twin booms, but a single motor. 117" wingspan and in the 30 to 35 pound range.
And you won't see one of these at the local flying field I bet.????

Lieutenant Loughead
12-09-2009, 09:22 PM
That's the one I have.
This place has them in stock.
http://ak-models.com/mm5/merchant.mvc?Screen=PROD&Store_Code=AKM&Product_Code=CMP042&Category_Code=CMPWarBirds

I have an E Flite 60 with a six cell pack.
It came out a little over 7 pounds ready to go.
Flies like it's on rails, point it and it goes.

Could use a little more wing area though.

PaulPaul,

Actually, the one you have is not the one I was asking about. Yours is 50 sized -- I was asking about a 40 sized.

To everyone: what is a good 40 sized warbird that is a good electric conversion, light weight (3 to 4 pounds all up), and costs in the $100 to $150 range?

Also, how would I create a battery hatch in an airplane with a fiberglass fuselage? :confused:

tommytorino
12-10-2009, 04:09 AM
A little over a KW! This is going to be F U N !

kyleservicetech
12-10-2009, 04:35 AM
Some great looking planes in this thread!


Im looking to convert it to 18S A123 power when I can afford a Castle SHV controller.

.

Just a note, I've found that trying to balance those A123 cells by discharging the "highest voltage" unit down to match the lowest voltage unit doesn't seem to work. (Eq Astro Blinky) In fact, IHMO I damaged a cell doing just that. It appears that the discharge voltage of those A123 cells is just to flat for voltage balancing to work properly.

Found the best way to balance them is to charge each individual cell (or parallel cells) to exactly 3.6 volts. That takes awhile, but then again, you only need to balance those A123 cells once a month or so.

tramp8754
12-16-2009, 06:34 PM
http://www.youtube.com/watch?v=nv204l58-iE
http://www.youtube.com/watch?v=dGOdCy048CE

gb

tramp8754
12-16-2009, 06:40 PM
http://www.youtube.com/watch?v=AX8c9XlxEKA

gb

Lieutenant Loughead
12-17-2009, 03:10 AM
Couldn't watch the Corsair video -- it wouldn't load. :(

Maybe I said this before, but Hobby Lobby has the exact airplane I've been looking for (http://www.hobby-lobby.com/e_rc_p_51d_mustang_arf.htm?pSearchQueryId=344584). It's the right size, the right weight, made of foam, retract ready (version 2 comes stock with the retracts). The trouble is that it's not yet in stock... :(

So -- any other ideas?

slrdave
12-17-2009, 03:48 AM
Funtana X - 200w/lb (now deceased)
Sky Raider Mach 1 - 150 w/lb, took the dihedral out of the wings
Showtime 50 - 185 w/lb
Chinese knock-off of a Sport 40. Airframe $65 delivered via ebay - worth half that.

All are flying with Turnigy motors, batteries and ESCs.

EpoweredRc
12-17-2009, 04:17 AM
What power you got in the showtime and batts? I wanted to do one but not yet. I have found other planes to keep me happy had a mini showtime i loved it till wing failure.

kyleservicetech
12-17-2009, 06:02 AM
What power you got in the showtime and batts? I wanted to do one but not yet. I have found other planes to keep me happy had a mini showtime i loved it till wing failure.

I've got a Showtime 50 with Hacker A50-16S motor, 16X12 APC-E Prop that turns about 6000 RPM, 6S2P A123 cells. Batteries have just completed their second flying season, and have the same exact performance as when they were brand new last year.

No it won't hover and other 3D stuff, but it is very acrobatic, and will fly 8 minutes, using about 60% of the A123 battery pack's capacity.

slrdave
12-17-2009, 06:27 AM
What power you got in the showtime and batts? I wanted to do one but not yet. I have found other planes to keep me happy had a mini showtime i loved it till wing failure.

I've powered the Showtime with a 1450 w Turnigy 42-60 500 KV motor spinning a 16x8 prop. WOT gives me 1200 w at 62 A max. The plane came in at 6.5 lbs, so I'm getting about 185 w/lb. The batteries are four Turnigy 3S 2200 mah. I doubled two each in series for 6S, then paralleled the pairs for 4400 mah. I get at least 10-12 minutes of moderately hard flight and only take the cells down to about half their capacity. It was a very easy conversion. With the batteries just forward of the wing tube she came right in on her CG.

She's more susceptible to tip stalling than the Funtana and I put her nose in doing stupid things to close to earth, but with some simple repairs, she's up flying again.

EpoweredRc
12-17-2009, 04:45 PM
I've got a Showtime 50 with Hacker A50-16S motor, 16X12 APC-E Prop that turns about 6000 RPM, 6S2P A123 cells. Batteries have just completed their second flying season, and have the same exact performance as when they were brand new last year.

No it won't hover and other 3D stuff, but it is very acrobatic, and will fly 8 minutes, using about 60% of the A123 battery pack's capacity.

Thanks for your reply, wow thats lots of A123 thats all I flown the past 2 years. recently went back to Lipos cause lipos have come a very long way still not as safe. but power is amazing.

Thanks slrdave fr your answer to since your the one i asked.
I always loved the looks og the showtime and was so happy when came out with the mini my only complaint was poor hatch degisn batts had to stay int he plane ( 3 then later 4 A123 2300 cells)

kyleservicetech
12-17-2009, 11:24 PM
Thanks for your reply, wow thats lots of A123 thats all I flown the past 2 years. recently went back to Lipos cause lipos have come a very long way still not as safe. but power is amazing.

Thanks slrdave fr your answer to since your the one i asked.
I always loved the looks og the showtime and was so happy when came out with the mini my only complaint was poor hatch degisn batts had to stay int he plane ( 3 then later 4 A123 2300 cells)

Yep, another thread in Wattflyer has a fellow modeler flying this Showtime 50 with 8S2P A123 cells, and an Eflite 90, I believe.

aramsdell
12-20-2009, 03:10 AM
slrdave, Are you sure about your voltage/amps????? I just bench tested my 42-60 500kv using a 13-6 nitro prop by Master Airscrew. I got 1460 watts on 6S 4900 pack. over 10500 rpm. Sounds more like you got 3S 4P if you are running a 16 inch prop ! Check the voltage.

PaperAirplane
12-20-2009, 03:39 AM
Subscribed, never seen this thread before!

park
12-20-2009, 03:43 AM
Subscribed, never seen this thread before!
As I'm reading I thought the same thing? Never seen it before?

kyleservicetech
12-20-2009, 04:00 AM
Subscribed, never seen this thread before!

Take a look at my thread per below:
http://www.wattflyer.com/forums/showthread.php?t=44686

A wattflyer worked out all sorts of issues with his Showtime 50, Eflight 90 motor and A123 cells.

You may find it useful

Happy Holidays :D:D

TDisaster
12-20-2009, 04:07 AM
http://www.youtube.com/watch?v=BpgUqfJcL_I

Just a Big Stik 40 converted with a Power 46, E-Flite Pro 60amp ESC and 5s 5000mah True R/C lipos. Nothing too special but it flys great! I even got to fly it at NEAT in the Saturday noon time demos.

tommytorino
12-21-2009, 01:15 AM
So -- any other ideas?

Yes Go here (http://www.pw-rc.com/product_info.php/products_id/1602?osCsid=4pjmdu34ffq6no58jvqer80kc0) and send Philip an E-Mail.

Lieutenant Loughead
12-21-2009, 04:07 PM
Very interesting -- thanks Tommy!

tommytorino
12-21-2009, 05:59 PM
Enjoy!

tommytorino
12-25-2009, 08:12 PM
4lbs 4ozs RTF Wing Loading under 17ozs! It's a kite!

Lieutenant Loughead
12-25-2009, 10:12 PM
Yep - that's what I'm talking about! :)

The kids gave me a gift today -- any airplane I want. Guess what I'm going to buy?

Angler-Hi
12-25-2009, 11:15 PM
LOL, nah, more to keep the PC folks happy. No insignias, no guns, and most certainly no correct color skeem.

Ah well, wait till you see the next one. Even though I'm in Florida now, I still got the winter build itch.
Ordered plans and having the wood cut on it now.

And me being different and the same, it has twin booms, but a single motor. 117" wingspan and in the 30 to 35 pound range.
And you won't see one of these at the local flying field I bet.????

Hey GG, where do you have your wood cut from plans at?

tommytorino
12-26-2009, 06:10 AM
Yep - that's what I'm talking about! :)

The kids gave me a gift today -- any airplane I want. Guess what I'm going to buy?

Bear in mind it's typical Chinese Jun..... errrr Quality. :D

I'm going to fly it a bit before I do anything to it.

Tommy

Lieutenant Loughead
12-27-2009, 05:02 PM
I've had really good luck with Chinese jun... Err, quality. My only complaint is the retracts on my Starmax F-5 -- I had to replace them with Great Planes retracts.

I can only hope this P-51 is of similar quality. :)

aramsdell
12-28-2009, 12:50 AM
Trying out some Turnigy motors. This one is 42-60 SK model. Plane is a NitroPlanes Extra 330S 63". 7.57 lbs. 5S4900 Rhino. 80A ESC. 3 blade 14-9 MA prop. 74 amps,1385 watts fresh pack, 182 w/lb. Cowling is almost out of the 'body shop' It got some quick repairs to close up the holes from the old Magnum .91 and it's muffler. Paint is drying. Ought to be fun ! 25 ounces/sq ft.

PaperAirplane
12-28-2009, 03:07 AM
Very cool!

aramsdell
12-28-2009, 04:10 AM
The mount was a PITA, but worth it. Just over 5oz with all the screws. Could probably even use a 14 X 10 to max out the motor.

tommytorino
12-30-2009, 05:42 PM
I've had really good luck with Chinese jun... Err, quality. My only complaint is the retracts on my Starmax F-5 -- I had to replace them with Great Planes retracts.

I can only hope this P-51 is of similar quality. :)

The place I posted to now sells a airframe only. If I had to do it all over again...

Anyways not really what you would consider a conversion by flew my GP Escapade. Nice flying Sport plane for $99

aramsdell
12-31-2009, 12:02 AM
Pretty plane. My Extra 300S may fly Thurs. late am. Gotta do a couple things tonight. The club field is almost cnow free. THere is a fine crust of snow no higher than the very short grass.

aramsdell
01-01-2010, 01:57 AM
Extra Flew. A little more power than the Magnum .91. A higher pitch prop would be better. Flight bat. is on the FMA charger to check it's health. I had about 4 min and used prob. 50% of 5S 4900.

CG needs to go back a hair but flew darn good for first test flight.


Edit: Used 1490 ma!

HeliScRapYard
01-01-2010, 02:59 AM
Converted this Eaglet 50 after i picked it up from a guy, A bit underpowered with a Eflite 480 1020KV. Time for a turnigy!

aramsdell
01-01-2010, 03:14 AM
Looks just slightly bigger but heavier than this one. I think it was a Der Herr something or other. Had a nitro, full size servos,bat etc. reportedly so underpowered .... Now it is 19 oz with a 1320 and park 400. Awesome trainer. I buddy box others with it often.

HeliScRapYard
01-01-2010, 04:10 AM
yea, the eaglet weighs in at about 4 lbs. Tons of epoxy went into it's lifeforce, needless to say its strong, but heavy, fun to fly though.

aramsdell
01-01-2010, 06:10 AM
When I was younger, I always said my planes flew better when they had 2lbs of epoxy holding the shattered pieces together. I think it was the high wing loading. Smoothed out the turbulence !

birdDog
01-04-2010, 04:17 AM
Simple convert. Eflite 480, 2200 3s fits right in the hatch in the nose, nice 'n easy. (F12 was opened up and a tray was added). I did no lightening since the battery offsets the whole tail of the plane. Nice Kit. Awaiting maiden...from snow.....:silly:

316" wing area, 26oz AUW

kyleservicetech
01-04-2010, 04:44 AM
When I was younger, I always said my planes flew better when they had 2lbs of epoxy holding the shattered pieces together. I think it was the high wing loading. Smoothed out the turbulence !

Reminds me of 15 years ago, when I had two 10 foot wingspan Viking sailplanes. Both were identical, but one was converted to electric power with an Astroflight 40Geared motor, and 18 RC2400 Nicads for power.

That electric version added about one and a half pounds to the model, but at that extra weight, it out flew the standard model every time.

Guess a model CAN be to light???????

ENUT
01-10-2010, 08:54 PM
Here is a picture of a CA Models funky 40.Or as I call it,"Fosters funky40":Q Axi4120/18,cc60esc, 6s or 5s battery.Graupner 11x7 3blade prop. ENUT

birdDog
01-10-2010, 09:11 PM
Glad to see she looking good Enut. I snapped my wing pulling some stupid maneuvers in the spring. Had to put the components in an ARF. Cant just leave 5000mah packs just gathering dust. May rebuild the wing this winter since money is in a real jam. That will give me plenty to do.

EpoweredRc
01-10-2010, 09:18 PM
Converted this Eaglet 50 after i picked it up from a guy, A bit underpowered with a Eflite 480 1020KV. Time for a turnigy!
a 50 size plane with park 480 wow. it flew my 37 inch edge great but was worried wouldnt fly my 42 inch slick so got another motor. but a trailer don't need much power.

HeliScRapYard
01-11-2010, 04:43 AM
Yea.. the 480 is all i have for now, and the manual called for a .35 Glow. It Pokes Around. i have a second eaglet gathering dust that i have thought about trying to set up with AP. not sure if it would be a good platform for it Though.

Lieutenant Loughead
01-14-2010, 09:13 PM
Yes Go here (http://www.pw-rc.com/product_info.php/products_id/1602?osCsid=4pjmdu34ffq6no58jvqer80kc0) and send Philip an E-Mail.Paid on January 7, and received today (January 14). It's a nice airplane, with retracts, flaps, motor, ESC, and servos already installed. What a deal! :)

Thanks again, Tommy! :D

tommytorino
01-15-2010, 04:40 AM
I'm glad it worked out for you. If nothing else it's a decent starting point.

Big Johnny
01-18-2010, 01:23 AM
I'm converting a Sig Sealane into a Twin Electic. 2 X Turnigy 35-42A, 2 X 60 Amp ESC's & 2 X Turnigy 4000mAh 4S 30C Lipo's. I hope to use either 10 or 11" 3 bladed counter Rotating props. I need the nose weight anyway so the batteries won't be a problem. I plan to make a waterproof hatch in the nose section, I'm still figuring on that one & how tho make retractible wingtip floats. Will post Pictures When I get new Camera. Mine give up the ghost.

TopSgt
02-09-2010, 06:48 PM
:tc::tc:Here are some of mine
72" rcm funster 2 each one built in 85
72" cap 232
54" CG ultimate bipe
72" Sukloi
65" CG Chipmunk
65" Simply magic
8 foot telemaster
55" p-47
60" Dueces wild

Electrics are fun--Baylor

tobydogs
02-10-2010, 03:28 AM
just a few converts,sighog bipe,gp 300s extra,sig kobra.

tobydogs
02-10-2010, 03:36 AM
opps no pics,heres a second try.

flying-barely
02-18-2010, 07:35 AM
I have a couple of airplanes designed as glow - converted to electric. i actually don't own any fuel (messy) planes.
I suppose now I'll be labelled as quiet freak, when I wnat to make noise, I ride my harley, it has to me the right kind of noise.
96" Unionville Turbo Beaver, awaiting paint, 4020-16 Scorpion, 16/8/3 blade, 1800 watts max, 6S(5000) 14 lbs,12ozs AUW
72" Unionville Radial bashed to a Turbo, Scorpion 3020-1110 on 3S (3600)AUW is 5lbs,10 1/2 ozs 10/7/3 blade for 600 watts
72" Radial Scorpion 3014-1140, 3S(2800),400 watts,11/6 apc e prop, AUW is 4lbs,6ozs
Kyosho P40 40 size, Scorpion 4020-14, either 14/7 or 14/10/2 blade apc, 6S 5000, Auw 7lbs,4ozs 1000 to 1400 watts
Can you tell I like Beavers!! flying-barely

HeliScRapYard
02-18-2010, 09:32 AM
Working on a AeroMax Skydancer .25-.35 Aerobatic sport plane, Was given to me as just a wing and fuse do i've got a bit of work to do on it, Have a Turnigy 35-42C 1100Kv waiting for it with a 4S 2800mAh, 12x6 and 50A esc. outta turn out pretty good. will upload a pic soon.

ENUT
02-18-2010, 04:11 PM
Nice BEAVERS'S!!!:D:cool: I too have the 96"unionville beaver waiting to be built.
ENUT

Red Scholefield
02-18-2010, 04:14 PM
Most are converting from IC to electric. Here is one we have had great sucess with converted from nothing to electric (AX2820-14 or Turnigy TR35-42C on 3S3200 LiPo). DynaFlite Bird of Time.

flying-barely
02-18-2010, 05:09 PM
Thanks Enut: Beavers don't like to left around waiting! I know, I'm single!!
OH,oh different kind.:roll:
I'll say it here, every Beaver that flies means 2 less Cubs!!
Building for me this year has stopped, detailing will continue.I am looking for material for scale skis, a 1/8th scale pilot, etc.
Right, now I've started to gather the pieces to build a custom trailer to haul these planes around. BEAVER HAULER--yeah!
It will be a gooseneck style ,designed to be pulled by my Harley-D.

flying-barely
02-18-2010, 05:17 PM
Most are converting from IC to electric. Here is one we have had great sucess with converted from nothing to electric (AX2820-14 or Turnigy TR35-42C on 3S3200 LiPo). DynaFlite Bird of Time.
Hi Red:Those Bird of Time look really cool, can they be hand launched once they have power. We have no hills, no one has a tow plane, so your option would be the most practical. Way to go!!
Some where in the middle of the Turnigy and the Axi,pricewise, check out Scorpion, good solid depndable motors, great warranty (%50% crash replacement for two years)Best service inthe industry. I have 6 of them, none have ever failed. Match them up with Turnigy Plush ESC's, great results. flying-barely

ENUT
02-19-2010, 03:37 PM
Red,nice B/T.
ENUT

Red Scholefield
02-19-2010, 05:52 PM
Hi Red:Those Bird of Time look really cool, can they be hand launched once they have power. We have no hills, no one has a tow plane, so your option would be the most practical.

Yes they can be hand launched, but we have found that using a dolly as pictured is the way to go. It was covered in my November09 column in Model Aviation.

SunDevilPilot
02-21-2010, 12:59 AM
I'll raise ya another Bird of Time conversion.

http://www.wattflyer.com/forums/showthread.php?t=46714

SunDevilPilot

Red Scholefield
02-21-2010, 01:49 AM
Some good stuff on that link, thanks. I wish Dynaflite would offer the electric conversion with nose bobbed and firewall installed. I'm getting tired of modifying them for others. Done seven so far. Looks like you were way ahead of us.

SunDevilPilot
02-21-2010, 03:02 AM
Some good stuff on that link, thanks. I wish Dynaflite would offer the electric conversion with nose bobbed and firewall installed. I'm getting tired of modifying them for others. Done seven so far. Looks like you were way ahead of us.

Nice writeup of the Bird of Time conversation in the new Model Aviation Magazine Red! The March 2010 magazine arrived at my house today and found your article a good read.

SunDevilPilot (AKA Phil)

HeliScRapYard
02-24-2010, 03:08 AM
Finally Got Some Pictures to upload and a few Questions. Here is My .25-.35 Skydancer (Cheap ebay kit):p>. Balances out well and has plenty of pep on a 2200mAh 3s Lipo. Have a 4s on the way which will Make this thing a rocket. i am wondering what suggestions you might have for me to mount the batteries inside the Fuse Behind the firewall without loosing Structural support or removing the wing each time. it could fit by opening the portion that leads to the canopy (Which i have to make Somehow) but the the 4S wouldn't fit through by the measurements i have. Look Forward to your Replies. Thanks!:D

ENUT
02-24-2010, 04:23 PM
Here's a link to my blog on the other website,
http://www.rcgroups.com/forums/member.php?u=1231 Look down you will see how I cut the hatch out.You should be able to cut rite behind the firewall.Then along the fuse from front to back.Once cut out you will need to add balsa formers to keep the hatch shape.Or like I did on my second hatch(after loosing the first one)carve it out of foam then glue balsa onto foam,sand and recover.
ENUT

tramp8754
03-13-2010, 03:35 AM
http://www.youtube.com/watch?v=yfMPKPJQO7w

gb

tramp8754
03-15-2010, 10:21 PM
http://www.youtube.com/watch?v=T27gyU5X6t0

gb

slrdave
04-12-2010, 03:03 AM
slrdave, Are you sure about your voltage/amps????? I just bench tested my 42-60 500kv using a 13-6 nitro prop by Master Airscrew. I got 1460 watts on 6S 4900 pack. over 10500 rpm. Sounds more like you got 3S 4P if you are running a 16 inch prop ! Check the voltage.
Aramsdel, Sorry for my late response to your post in December. I've been meaning to double check-my figures on my Showtime 50 with the Turnigy 42-60 500KV motor. I replaced the 16x8 prop with a 16x6 today and tested it with a watt meter. WOT it maxed out at 1640 watts, drawing 76 amps from a 6S lipo. Propped down to the 16x6 it pulled like a mad pit bull. I do need to ditch the wheel pants and install some larger wheels because the prop clearance is only about an inch.

David

slrdave
04-12-2010, 04:09 AM
Some recent conversions to electric -

Model Tech 80" Super Cub - A great ARF. It is advertised as either gas or electric, but there were no provisions to change batteries without taking of the wing and struts. I unglued the windscreen and used friction to hold the top between the wing and fuse and used two servo screws on either side at the bottom. I can now get my whole hand inside without taking the wing off.
Turnigy 42-60 SK motor, Turnigy Plush 80 amp ESC, 5S 5000 mah battery

Skyraider Mach I - This is a nice plane to convert. Again, the only problem was battery access. I cut the turtle deck and made a hatch secured with a tab at the forward edge and two magnets in the aft corners. To close it I took a servo arm and threaded a plastic screw in from the top to create a latch for extra safety. In the photos you will see vent holes in the black area for ESC venting. The screws are part of a camera mount. I took the dihedral out of the wings and it became one fun fun plane to fly.
Turnigy 45-50 SK motor, Turnigy Plush 60 amp ESC, 2 - 3S 2200 mah in series for 6S

Great Planes Patty Wagstaff Extra - This one is in process. I calculate the flying weight to be a hair over 13 lbs and will power it with a Turnigy motor rated for 3100 watts, though I expect on 10S I'll be down around 2600-2800.
Turnigy 63-64 SK motor, Turnigy Sentilon 100 amp ESC, 2 - 5S 5000 mah in series for 10S

David

aramsdell
04-13-2010, 03:17 AM
SLRDAVE, I have had two of the SK series. I think they are weak where the shaft meets the bell. THere's a good chance of bending the bell, not necessarily the shaft, at that point. I bent the bell on my 42-60. Motor toast. Do yourself a favor. Go with another brand. I'm using the Exceed 160. While I wasn't happy with the fit of the shaft to the bearings, I easily cut a piece of helicopter main shaft (10mm) to length and used that since no problems. $ 45.00 or so plus shipping from US ! Wattmeter tests this past weekend had 3048 watts !!! The motor was getting warm at this wattage and I am going to change from the APE-e 20 x 10 to more like a 21 x 6. I had a 21 x 8 thin wood electric and it was running 2500 or so.
My plane weighs 13.75 lbs and has great vertical. Take off is about 30 feet and then straight up.

Your target weight is just right for this motor on 10S..I was drawing 80 ish amps at 3048 W.

Al

slrdave
04-13-2010, 03:37 AM
Thanks Al. I'm going to check out your suggested motor. The Turnigy SK series have been good to me so far, but I'm open to looking at others. One of my 42-60s started making some noise lately. I've got to track it down to see if it's in the motor or just a problem with a cowl at high speed.

David

kyleservicetech
04-13-2010, 04:22 AM
Let's see those converted kites !!:p


04-12-2010 So far, this model has 16 flights on it.

Hanger 9 P51 Mustang Sport 40 ARF

Full Details at: http://www.wattflyer.com/forums/showthread.php?t=54080

I was concerned about overheating of the Hacker motor, due to the big 2 3/4 inch spinner blocking air to the motor. So a 1/32 plywood baffle was placed behind the air intake, aimed at the motor. This baffle is cylindrical in shape, and is formed around the motor. It was not possible to actually touch the motor after a flight, but an Digital multimeter, with a thermocouple temperature probe, placed against the motors outside rotor showed about 121 degrees F, that on a 75 degree ambient temperature. (I contacted Hacker, they indicated that the "bell" magnet structure should be kept below 160F, so guess my setup is quite safe.)

My onboard current monitoring device showed the current pulled by the motor varied from about 5 amperes or so under low power dives, to 44 amperes full throttle on a climb out. (This device displays total flights, total ampere hours, total flying time, and either current amperes pulled by the motor, or milliampere hours during the current flight. That little microcontroller is really busy!)

The photos show the model pretty much as it comes out of the box. Everything is installed, even the tailwheel! Decals, hinges, control arms, everything, even the canopy is completely finished.

The model is very stable in flight, I actually flew the length of our flying field with about 30% throttle, 80% UP ELEVATOR with no problems. And the usual spins, snap rolls, loops, rolls, inverted flying was routine, this model goes where it's pointed. Did have one issue, the model, when trimmed for level flight at full throttle, tends to dive at reduced throttle. I fixed that by mixing the elevator with the throttle, 9% up elevator at motor idle speed.

Lieutenant Loughead
04-13-2010, 02:31 PM
Yes Go here (http://www.pw-rc.com/product_info.php/products_id/1602?osCsid=4pjmdu34ffq6no58jvqer80kc0) and send Philip an E-Mail.Got tired of waiting for the wind to die down for months on end... I maidened my new Shenzhen P-51 Mustang last Sunday afternoon in 15 mph winds, and she flew BEAUTIFULLY! I was truly shocked how easy she was to fly! :eek:

She required NO trim, and had a good 5 minute flight. Landing was a bit tricky in the wind -- I got her on the ground (two wheels), and just as I flaired a gust of wind came along and she popped back up into the skies! Somehow I avoided a stall by nosing down and flairing again, but she did nose over after touchdown. The only damage was to the prop tips (no biggie).

I'm truly amazed at this airplane -- well worth the price of admission! :cool:

aramsdell
04-14-2010, 04:59 AM
OOOOOOOOOOO Kla Homa where the wind comes rushing down the plain.


Whadda ya mean wait for the wind???

If I did that I'd still be waiting on flight # 6 and I started back in 1977.

My new Yak flies great in 20 mph winds. Maidened it in 10 to 15 MPH. Learn to fly in it I guess.

Eplane65
04-19-2010, 01:22 AM
This is my H&M Performance Spitfire. It weighs 9 lbs, 6 oz. and has 65 inch wingspan. Following is the component data:

Motor: AXI 4130/16
ESC: Hobby King 60 amp (yep, the $19 one)
Battery: Zippy 6 cell, 5000 mah, 30C
Prop: ACPe 15X10
Battery for radio: 2 cell, A123 2600 mah, with voltage regulator set at 6 V
RX: Spektrum AR6200
Servos: 4 Spektrum DS821 and one Hitec HS75 retract

How does it fly? Great!! Takes off in about 40 ft and handles very smoothly. Landing is fast because it doesn't have flaps.

Fast Guy
04-22-2010, 10:04 PM
Sig 1/5 scale J3 Piper Cub.
RimFire 50-55-500 (.80)
Castle Creations Phoenix 80 ESC
16x6 Xoar prop
Flight Power 6s 3200 30c battery

http://www.youtube.com/watch?v=e_SYVD0TY14

tobydogs
04-23-2010, 12:30 AM
hey there fg,thats a beautiful girl ya got there.

did you make those floats?? thats one of the nicest floatplane i'v seen posted.:ws:

Fast Guy
04-23-2010, 12:54 AM
hey there fg,thats a beautiful girl ya got there.

did you make those floats?? thats one of the nicest floatplane i'v seen posted.:ws:


Thanks, the floats are a 60 size Great Planes float kit. If you watch the movie there is a picture of the lightening job I did on the floats. Lost just over a pound combined on the pair. Made for a nice flying float plane. Made all the mounting hardware and ends for the streamlined tubing.

tramp8754
05-10-2010, 02:09 AM
gif experiment

rea59
05-10-2010, 02:18 AM
Here is my latest conversion: Carl Goldberg Tiger 2
Wingspan: 61"
Wing Area: 680 sq"
Fuse Length: 54"
All up weight: 6lbs 1oz
Motor: Turnigy SK4250 650kv
ESC: Turnigy Plush 60
Battery: Turnigy 5S 5000mah.
Prop: APC 12X8
Watts: 854 (140 per pound):tc:
Amps: 43
Full story Here (http://www.wattflyer.com/forums/showthread.php?p=718097#post718097)

tramp8754
10-09-2010, 07:43 PM
http://www.youtube.com/watch?v=wuvSPxA-yF0

gb

kyleservicetech
10-09-2010, 10:35 PM
http://www.youtube.com/watch?v=wuvSPxA-yF0

gb

Prop and motor lost sync causing dead stick landing??? Never heard of that one, which motor and ESC???

aramsdell
10-10-2010, 01:24 AM
It's easy to unsync some outrunner motors. Put a large prop on it then change the timing to low. Quick throttle advance results in screaching or worse. I don't think I ever dead sticked though...

kyleservicetech
10-10-2010, 03:02 AM
It's easy to unsync some outrunner motors. Put a large prop on it then change the timing to low. Quick throttle advance results in screaching or worse. I don't think I ever dead sticked though...

Interesting, learned something new here.

Guess if I propped my Hacker motors with to large of a prop, It would give smoke, so never tried it.

tramp8754
10-10-2010, 08:54 PM
aramsdell, all good advice. I have had this same thing, losing sync, happen before on another acft. And yes, the fixes you suggested cured that plane's poblem. To elaborate on this Stick's "dead stick": as soon as screaching occured (4:43 in video), I throttled back, established a glide, set up a landing, and tested the powered. The power was back and could have been used if extending the glide had been needed. It was not, as can be seen in the video. The Stick has flow several times since without the problem reoccuring. Aramsdell, let me ask your opinion, would you leave well enough alone (if it is workin', don't fix it), or would you adjust prop and timing?

gb

aramsdell
10-12-2010, 04:23 AM
Kinda like driving in the winter with summer tires. If your not going through too much snow or up too steep a hill then you aren't asking that much from the vehicle and you get away with it. I have done that most of my life, usually of necessity of finances.
If you leave it alone you may never need to goose it and it doesn't lose sync. If you do need to....perhaps a crash.
On my 1.6 sized motor I HAD to change timing because it would completely unsync in some instances and at best it would screech when jamming the throttle.

I would go to the next higher timing level, until it stops. If you can't get it to go away you may need to go to a softer start mode.

tramp8754
10-12-2010, 05:11 AM
Thanks.

gb

aramsdell
10-13-2010, 01:49 AM
Tell us how you make out.
Alan

tramp8754
10-13-2010, 02:02 AM
Adjustments to Ultra Stick have been made. Thurs and Fri are to be perfect for flying. Next flights should be on those days.

Current conversion on the bench is Percision Aerobatics's Bad Boy V2. Only thing holding up completion is its ESC's arrival. Test indicate achieving proper cg will be easy. Weight came in right at nitro's weight.

http://www.precisionaerobatics.com/product_details.php?pid=183

gb

tramp8754
10-14-2010, 11:31 PM
Four flights of ~10 minutes each went well. No problems at all. Even the weather was near perfect:

Wind from the NNE (030 degrees) at 12 MPH (10 KT) Visibility 10 mile(s) Sky conditions mostly clear

gb

Glacier Girl
10-16-2010, 12:06 AM
Here's my latest trio of converts.
I got wrangled into some builds at my last fly in. The Hobbico was done up for someone here in need on Watt Flyer as a gift. Swapped in an E-flite 60, Turnigy Plush 60, and set it up for 6S power spinning a 14x13x3. It was converted to a tail dragger by the previous owner. Here she is with her new owner.

The P40 is a NitroPlanes 60 series from way back. Owner had a problem getting it built for him over a three year period. I got it back and finished it in a month. Did have to rework the wing saddle as it was way off. Built internal controls for the tail feathers, and reshot the colors for a more drab worn look. It's AXI /Castle powered spinning a 14x10x3 on 6S. The "Duke" himself is behind the controls.

Oh and the multitude of kill flags is a little jab at Lou the owner, he's not prejudice, he would have shot down any plane he saw.

Last one is a keeper. Top Flight Gold Corsair, a stick built started in 1997. I finished the build even going with working tri flaps. Here she's pictured in her base color. No normal WWII scheme for me, I'm going with a Reno racer style like was used on the Super Corsair. Still need to install the stripes and retracts.

Has my added flip open canopy, pilot hides the Dean's kill switch, rx switch, and charge socket for the rx pack.

How's this for specs? 2000+watts, 20 pounds of thrust, and airspeed of approx 75 mph. All from a cheapy China system. HTK 6364A, 80amp Suppo esc, and Turnigy packs 4/5 cells wired in series. I have right at $200.00 total in all three.

I'm running a MAS 15x10x3 on it now and have a 14.5x12x4 on it's way for it.
Last couple of shots are how the finish paint job will be.

RickAvery
10-20-2010, 07:36 AM
Nice planes GG!!! Can't wait to see your Corsair completed. I*'m currently working on a H9 P-40. Here are a few shots of my two, so far, e-conversions. A SIG LT-40 and a H9 Spitfire. Lots of fun making these bigger planes electric. Blue skies!!
Rick

Glacier Girl
10-20-2010, 08:49 AM
Hey Rick you'll be real happy with the P-40. I really wish Horizon wouldn't have dropped it. I had two of em. E-flite 60, Castle 60 with a Ultimate bec, and spun a 15.75 x 13 x 3 APC prop cut down to 14", on 6S power. It flew great, lots of power and speed, and the cowl acted like an amplifier for the prop noise making it sound like a gasser. I built mine with rotary drives for the ailerons and internal linkages to clean up the look, plus I couldn't stand the stock servos hanging out of the fuse back at the tail. Modded the canopy to a hinged unit and used the pilot to hide the kill switch. Even rebuilt the stock antenna mast to run the rx antenna thru it.

Keep an eye on the stock retracts, they tend to need adjusting to the stops if you fly off rough grass.;-)

iFLYrc_Vic
10-20-2010, 12:17 PM
I am trying my hand at converting a Nitro Planes B-25 to electric. As mentioned, these big planes are a challenge to convert and make an interesting project. Here are a few photos of my progress so far. I have a build thread at the following link: http://www.rcgroups.com/forums/showthread.php?t=1293051

Vic

RickAvery
10-20-2010, 03:33 PM
GG,
I saw a post of yours mentioning the cut down APC prop. I tried it on the Spitfire and the ESC/Motor shuts down with heavy throttle application, so I took it off. I'm using an E-flite P-60, CC 80 ESC, CC 10amp BEC, on 6s2p 5000mah Lipo. I'm assuming it's over-amping the system as it shuts down before I can get a reading on the wattmeter. I found a 15X8X3 generic prop on feebay and it's working OK. I also found a 16X8X3 prop avaliable & I'm going to try that one. Nice job hiding the servos & linkage. Blue skies!!

Rick

Glacier Girl
10-20-2010, 04:19 PM
Rick I doubt it's over amps, mine pulled 46 WOT. The Castle is more then likely the culprit. I had to play with the settings, even had to call Joe at Castle to get it to work right.

I hate to say it but the Turnigy esc's from HK have given me less trouble then the Castles. I've got a couple of motors, like the one in the Corsair now that I couldn't get the Castle's (60 and 80's) to mesh with on 6 cells. No mater what I did they couldn't keep up with the motor and they would go out of sync and I'd get that lovely WONK sound and it would then shut down.

Could be what's going on with yours.

RickAvery
10-20-2010, 05:09 PM
That's exactly what the motor does. WONK!!! then shuts down. I have a castle link, do you happen to remember what you were told to do to get the settings dialed in? Sounds like I may need to call CC up. I have called CC before for a different problem and they were very helpful. Thanks for the info.

Rick

Fast Guy
10-21-2010, 12:33 AM
That's exactly what the motor does. WONK!!! then shuts down. I have a castle link, do you happen to remember what you were told to do to get the settings dialed in? Sounds like I may need to call CC up. I have called CC before for a different problem and they were very helpful. Thanks for the info.

Rick

Running the latest firmware?

RickAvery
10-21-2010, 06:04 AM
Running the latest firmware?

Fast Guy,
I have no idea. I purchased the ESC used from a RCGer. Does it make a difference?

Rick

Fast Guy
10-21-2010, 12:10 PM
Fast Guy,
I have no idea. I purchased the ESC used from a RCGer. Does it make a difference?

Rick

If your ESC has the firmware it shipped with (firmware 1.55 or 1.56) then upgrading to the latest (3.20 or higher) should fix the "WONK".;)

ditchit
10-21-2010, 02:37 PM
123"/ 40% Extreme Flight Extra 300S
Plettenberg Predator 37/6 motor
Xoar 28B (28x10) prop
Schulze Futur 300A ESC
14S12000 30C lipo
Hitec 7950 7V servos
Spektrum Royal Powerbox
AUW 18.5KG
Flight time 8.5 mins mixed take 3500mah-4000mah out of the packs
14.5KW at 280A

Only 10 flights so far. I'm improving with every flight. Getting it down on the deck but still nervous of getting it vertical for torque rolls. Slow high alpha knife edge is my fave move. My aspiration is to get high alpha slow rolls (using rudder) at low alt nailed. I'll get there...

http://www.youtube.com/watch?v=XDiqDmPHDJk

RickAvery
10-21-2010, 03:25 PM
If your ESC has the firmware it shipped with (firmware 1.55 or 1.56) then upgrading to the latest (3.20 or higher) should fix the "WONK".;)

Thanks Fast Guy! Is updating the firmware something that can be done through the castle link, or do I need to send it in to CC to have updated? Thanks again for your help & info. Blue skies!!

Rick

kyleservicetech
10-21-2010, 05:55 PM
Thanks Fast Guy! Is updating the firmware something that can be done through the castle link, or do I need to send it in to CC to have updated? Thanks again for your help & info. Blue skies!!

Rick

Yes, you can update the Castle Creations ESC's with the Castle Link. It's simple and easy to do, just follow the Castle Link software program.

If your CC unit does not have identification labels for the voltage and current ratings, be sure to mark this info on the ESC before updating it.

RickAvery
10-21-2010, 06:34 PM
Yes, you can update the Castle Creations ESC's with the Castle Link. It's simple and easy to do, just follow the Castle Link software program.

If your CC unit does not have identification labels for the voltage and current ratings, be sure to mark this info on the ESC before updating it.



Thanks sooo much for the info. I'll give it shot tonight after work. Your time is greatly appreciated!!

Rick