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Electric Ducted Fan Jets Discuss electric ducted fan jets here including setup tips, power systems, flying techniques, etc.

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Old 03-27-2010, 05:52 PM   #176
Flite-Metal
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Default Disclaimer...

I should add this before Sam and I cross over from virtual to real world construction... Please read and determine for yourself if,
and or, how the following applies to you, the reader:

Any and all persons reading this discussion must come to their own determination of the safety and wisdom of emulating or replicating
any and all aspects of what is described within this discussion.

This includes, but is not limited to your own decision on the safety of and whether you should be involved in this or these activities
and any processes or use of equipment related to recreating what is, or has been discussed here-in by subscribers to WattFlyer, the
host of this discussion.

Neither the author of this topic nor WattFlyer are responsible for proper or improper use of, or correct or incorrectness of any process
activity undertaken by any one or all readers of thisdiscussion thread. As in all modeling activities, reader beware of your abilities to
either properly or improperly apply the principals described here-in.

It is impossible to declare whether this activity is or is not proper for readers of this discussion. Boeing©, Disney©, and Microsoft©
along with names and artwork of many other companies appearing in this construction thread are the possession of their respective
owners/corporations and utilized herein for educational purposes.



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Old 03-27-2010, 09:32 PM   #177
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Default Slip'n & Slid'n


That should shorten things up... What do you think?

If you have never cross cut a carbon fiber tube, or for that matter any carbon fiber, you should read precautions suggested to adhere
to when doing so.

All too often a modeler will read or obsere what someone else has done in a thread and jumps to replicate it without having the slightest
concern for their health and well being
...

The "rings" inside and around the tubes illustrated above work to distribute the contact load in an effort to offset binding. Which would
occur if load were concentrated along the innner "cut off" edge.

Our B-47's have two "rings" at each location shown in this illustration. That widens each's contact patch. The contact patch is widened,
reducing the and the load angle. It is very important to know this should only be used with 2.4 and not 72 or lower as it could invoke
nasty EMI.

A unique feature of carbon fiber is it is often observed as self lubricating. In reality its probably an incorrect observation, however in
some applications it can be observed with excellent dry smoothness and slip.


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Old 03-28-2010, 03:56 AM   #178
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Default Real BAC Airfoil Resource

Below is confirmation of the assumption I made way back in December as I churned through Kevin's airfoil software to identify the itch
that could not be scratched...yes, another one
These images are from an engineering drawing for a B-47E display model at BAC back in the 50's. If you ask yourself why would we be
interested in a display model you ask... Gotta lov-it as Church's Chicken commercials profess...

Ask yourself why BAC's model shop would use anything "less" than a 1:1 replica airfoil. I'll give you a moment to post your reply.... Hey,
why would they use anything less? It was there for their use...

The display model airfoil matches many images drawn and assumed since the 50's so it must be the same...he professed with a smile on
his face... Looks like a skunk, smells like a skunk..its a SKUNK! Its a weiner...



Note, the BAC airfoil listed in all official instances have been the same from root to tip...however above there are midpoint and sectional
airfoils which are not the same shape....only use the "guppy belly" airfoil...

Why believe the BAC guppy belly airfoil is the correct and accurate one? I present contemporary (1940's evidence) as proof. Come one Ed,
1940's? Well you be the judge guys...








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Old 03-28-2010, 11:57 AM   #179
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Default

Originally Posted by Flite-Metal View Post
That should shorten things up... What do you think?
I think that looks like it should do the trick. Control rods going inside the outer tube and connected to the inner tube for movement?

Take care and thanks for posting at WattFlyer!!

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Old 03-28-2010, 01:54 PM   #180
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Default

Originally Posted by Flite-Metal View Post


That should shorten things up... What do you think?


Hi Ed and Sam,

If you are going to use this it would probably be best to install another "glued out" at the very left of the outside tube. Once the tube telescopes and the "glued in" and the "glued out" shown are together there will be a lot of slop at the end of the extended tube.

Since your wing cord is sooo big I think it would be wise to just use a 1/4 inch I.D. glass tube (Dave Brown push rods) with a hollow 1/4 inch
O.D. CF tube for the inside rod. The inside CF rod should extent out the left of the drawing so that there is a lot of interface of the inner and outer pieces when the flaps are fully deployed. The inside CF rod should be twice the length of the out side tube for best support when flaps are fully deployed. The combo of the these two piecses will give a little slop and keep the mechanics from binding.

Just my 2 cents.

Keep up the great work!

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Old 03-28-2010, 04:34 PM   #181
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Thumbs up Tele-Tubie II


This illustration is simplified from what is intended for use because internal distance between rings will be dialed-in "after" all pieces are
cross cut, fit onto & into each of the tubes.

Some assumptions are in play relative to balancing friction against inside of outside tube. What I illustrated is a single ring...there are
actually two in each position with a yet to be determined space between each.

It is yet to be determined whether we use combination of tubes and an internal solid rod or tubing alone. When you go to select CF
tube and rod in three consecutive slip tolerances things don't necessarily trip up as easily as they do for pairs of same.

Space available within the wing is extremely small though there is a 137" wing. My intention is to "regain" what little I can in order to
reduce compromising two of the three removable spar blades. Remember I'm working up from minimums in order to keep accummulative
AUW to between 34# to 37#.



Remember, I am cantilevering nearly 11# on each inboard pylon of an aircraft that is going to perform aerobatically through two
vertical maneuvers entered at maximum airspeed.

I favor two tele-tubies and one solid rod to achieve the span to reduce footprint to a much narrower one. Waht I favor may in
reality turn out to be a bust. We'll let Sam do what he can with what he can...was to have ordered it either last night or today.

Its not economically practical to drive all over Houston checking who has what just to be frustrated with less thans. Sam has
been using the Graphitestore in Buffalo Grove, IL for CF.


My usual go to for composites is Boedeker Plastics, Inc. 904 West 6th Street • Shiner, TX 77984 Toll free : 1.800.444.3485
Phone: 361-594-2941 Fax : 361-594-2349 email: bpi@boedeker.com web: www.boedeker.com

Technically, these folks have really come through for me for 20 years. Its fun to go into their stacks and graze through the
phenolics and exotics to create a solution to a whatever issue. If they don't have it...they'll go the extra mile to see you get it...


That image pretty well says it all for Boedeker in Shiner...on the South side of I-10...the brewry is on the North side... :^) If you want
to go fast, high, long and deep Boedeker can get you there on spec, on time! If that sounds like an ad...it is

A partial list of Boedeker's materials:


B

C
CPVC
Celanex ®
Celazole ®
Ceramic, Machinable
CIP Composites
Cirlex ® Polyimide Film
Corzan ® 4910 CPVC
Crystex ® (discontinued)
Cyclic Olefin Copolymers (COC)

D
Delrin ®
Delrin ® AF
Duratron ®
Durostone ® FRP

E
ECTFE (Ethylene-ChloroTriFluoroEthylene)
Ertalyte ®
ETFE (Ethylene-TetrafluoroEthylene)
Ensicar ®
Ensifide ® PPS
Ensifide ® GF 40 PPS
Ensilon ®
Ensital ®
EPM-2204U-W Ceramic-Filled PEEK

F
FEP (PTFE Fluorinated Ethylene Propylene)
Fiberglass Reinforced Durostone ®
FlameTec ® Fire-Retardant Plastics
Fluorosint ® family
Fluorosint ® 207
Fluorosint ® 500
Fluorosint ® HPV
Fluorosint ® MT-01

G
G-3 Glass-Phenolic Laminate
G-5 Glass-Melamine Laminate
G-7 Glass-Silicon Laminate
G-9 Glass-Melamine Laminate
G-10 Epoxy-Glass Laminate
G-11 Epoxy-Glass Laminate
G-30 Polyimide Laminate

H
HDPE (High Density Polyethylene)
Halar ®
HiMod ® 913,914 (discontinued)
HTP 800 Clear PVC
Hydel ® ESD ASD
Hydel ® ESD PC-7
Hydel ® ESD PEI-7
Hydex 4101 ®
Hydex 105-16 ®
Hydlar Z ®

I
Imidex ® Polyimide Film
Isoplast ®

J

K
Kadel ®
DuPont ™ Kapton ® Polyimide Film
Kel-F ®
Ketron PEEK
Ketron HPV (bearing grade PEEK)
Ketron PEEK-LSG (Medical)
Ketron PEEK-CA30 LSG (Medical)
Ketron PEEK-GF30 LSG (Medical)
Ketron PEEK-CLASSIX LSG (Medical)
Kydex ®
Kynar ®
Kynar ® CN (conductive)

L
LDPE (Low Density Polyethylene)
Laminates, Glass Fabric
Laminates, Phenolic
Lennite ®
Lennite ® CN (conductive)
Lexan ®
Lucite

M
Macor ®
MC901 ®
MC907 ®
Meldin ®
MGC (Machinable Glass Ceramic)
Mylar ® Film

N
Noryl ®
Nylatron GS ®
Nylatron GSM ®
Nylatron GSM ® Blue
Nylatron NSM ®
Nyloil ®
Nylon (Cast)
Nylon (Extruded)

O

P
PAES (PolyArylEtherSulfone)
PAI (PolyAmide-Imide)
PAS (PolyArylSulfone)
PBI (PolyBenzImidazole)
PBT-Polyester
PC-7
PC-300 / PC-350 (AntiStatic Coated Polycarbonate)
PCTFE (PolyChloroTriFluoroEthylene)
PEEK (PolyEtherEtherKetone)
PEEK (PolyEtherEtherKetone)
PEEK, Ceramic-Filled
PEEK HT (Hi Temp)
PEEK-LSG (Medical)
PEEK-CA30 LSG (Medical)
PEEK-CLASSIX LSG (Medical)
PEEK-GF30 LSG (Medical)
PEEK-PBI T-Series ®
PEI (PolyEtherImide)
PEI-7
PESU (PolyEtherSulfone)
PES CN (conductive PolyEtherSulfone)
PETG Sheet
PET-Polyester Film
PET-Polyester Sheet & Rod
PFA (PTFE & PerFluoroAlkoxy copolymer)
PPO (PolyPhenylene Oxide)
PPS (PolyPhenylene Sulfide - unfilled)
PPS (PolyPhenylene Sulfide - filled)
PPSU (PolyPhenylSulfone)
PS (Polystyrene)
PTFE (PolyTetraFluoroEthylene - unfilled)
PTFE - filled (Rulon ®)
PTFE - filled (Fluorosint ®)
PVC (Polyvinyl Chloride)
PVC-300 / PVC-350 (AntiStatic Coated PVC)
PVDF (PolyVinyliDene Fluoride)
PVDF CN (conductive PVDF)
Phenolic C,CE (Laminates)
Phenolic L,LE (Laminates)
Phenolic X,XX,XXX (Laminates)
Plavis ®
Plexiglas ®
PolyAmide-Imide
PolyArylEtherSulfone
PolyArylate
PolyArylSulfone
PolyBenzImidazole
Polycarbonate
PolyEtherEther Ketone
Polyester Film
PolyEtherImide
PolyEtherSulfone
Polyethylene (HDPE)
Polyethylene (LDPE)
Polyethylene (UHMW)
Polyimide (Duratron ®)
Polyimide (Meldin ®)
Polyimide (Plavis ®)
Polyimide (Sintimid ® V)
Polyimide (DuPont ™ Vespel ®)
Polyketone
Polymethylpentene
Polyphenylene Oxide
Polyphenylene Sulfide (unfilled)
Polyphenylene Sulfide (filled)
PolyPhenylSulfone
Polypropylene
Polystyrene (Hi Impact)
Polystyrene (Cross-Linked)
Polysulfone
Polyurethane
Pomalux ®
Pomalux ® CN (conductive)
Pomalux ® SD (anti-static)
Propylux ® HS (heat stabilized)
Propylux ® CN (conductive)
Propylux ® SD (anti-static)

Q
QuickSilver ® Liners

R
Radel ® A
Radel ® R
Rexolite ®
Rika Lite ® FRP
Rulon ®
Rynite ® PET
Ryton ® PPS

S
Semitron ® CMP LL5
Semitron ® CMP XL20
Semitron ® ESd 225
Semitron ® ESd 410C
Semitron ® ESd 420
Semitron ® ESd 480
Semitron ® ESd 490HR
Semitron ® ESd 500HR
Semitron ® ESd 520HR
Sintimid ® T
Sintimid ® V
Spectar ®
Sustarin ®
Sustarin ® C MDT

T
T-Series ® PEEK-PBI
Tecadur ® PET
Tecadur ® PBT
Tecafine ® PE
Tecafine ® PMP
Tecafine ® PP
Tecaflon ® PCTFE
Tecaflon ® PTFE
Tecaflon ® PVDF
Tecaform ®
Tecaform ® HPV 13
Tecaform ® SD
TecaMax ® SRP
Tecamid ®
Tecamid ® GF30
Tecamid ® HS
Tecamid ® ST
Tecamid ® MDS
Tecanat ®
Tecanat ® GF20
Tecanyl ® MT (PPE+PS-HI)
Tecapeek ®
Tecapeek ® GF30
Tecapeek ® PVX
Tecapeek ® CF30
TecaPEI ®
TecaPEI ® GF 30
TecaPET ®
TecaPro ® MT
Tecaran ®
Tecason ®
Tecason ® P XRO
Tecast ®
Tecast ® 6PA
Tecast ® 6XAU
Tecast ® 6PAG
Tecast ® 6PAL
Tecast ® 6PAM
Tecatron ®
Tecatron ® GF 40
Tecatron ® PVX
Tecator ®
Techtron ® PPS
Techtron ® HPV (bearing grade PPS)
Teflon ® PTFE (unfilled)
Teflon ® FEP
Teflon ® PFA
Tefzel ® (ETFE)
Tempalux ®
Tempalux ® CN (conductive)
TF-60V PEEK-PBI (glass-filled)
Thermalux ®
Tivar ®
Tivar ® 1000 Antistatic
TL-60 PEEK-PBI (lubricant-filled)
Topas Cyclic Olefin Copolymers (COC)
Topas ® 6015S-04 COC
Topas ® 6017S-04 COC
Topas ® 8007S-04 COC
Topas ® 8007X10 COC
Topas ® TKX-0001 COC
Torlon ® PAI
TPX ® (Polymethylpentene)
TU-60 PEEK-PBI (unfilled)
Turcite ® A,X
Turcite ® HiMod 913,914

U
Udel ®
UHMW (Polyethylene)
Ultem ®
Urethane

V
Valox ®
Vectra ® LCP
DuPont ™ Vespel ®
Vekton ®
Vekton ® 6PA
Vekton ® 6XAU
Vekton ® 6PAG
Vekton ® 6PAL
Vekton ® 6PAM
Victrex T-Series (PEEK-PBI)

W
X
Xenoy ®

Y

Z
Zelux ®
Zelux ® CN (conductive)
Zelux ® SD (anti-static)

We'll see what Sam comes up with...something like...






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Old 03-28-2010, 07:37 PM   #182
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Default Material Selection...

We are using generic carbon fiber during our work-up. I expect Boedeker to suggest a specific
branded product as we get to embedding the the flap module within the wing.

Consideration was given to being able to remove the flap module so alignment and maintenance
would be easier. Sam designed the flap and components so they can be removed. These come
out as individual items, not as a unit.


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Old 03-28-2010, 08:20 PM   #183
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Default

[QUOTE=Flite-Metal;705469]



"Space available within the wing is extremely small though there is a 137" wing. My intention
is to "regain" what little I can in order to reduce compromising two of the three removable
spar blades.

Remember, I am cantilevering nearly 11# on each inboard pylon of an aircraft that is going to perform
aerobatically through two vertical maneuvers entered at maximum airspeed. "


Ed and Sam,

Thinking about it, it may be benificial to run the tubes all the way to the LE on the IB flap which would stiffen the twisting of the IB wing sectionwith the pod way out there.

George
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Old 03-28-2010, 09:51 PM   #184
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Default Spar Boxes

George,

Three wing spar receiver boxes are interlocked to two inboard engine pylon "blade" receiver boxes. Green in photos is "removable" 3rd
member spar blade within each of the 3 wing spar receiver boxes. Green on flap is tail end of nacelle pylon fairing screwed onto flap.

Each of 3 spar boxes per wing are interlocked with each inboard pylon blade receiver box. Surfaces and intersects are laminated with
CF veil. Spar assembly is brought together outside hot wired XPS Spyder foam wing, then epoxied within it. Bottom and top hot wired
cutaway foam are replaced and weighted down until cured.

Inboard pylon blade receiver box and nacelle blade insert are not shown in this image. Both are being redrawn between posts to this
thread... I am now going to return to redrawing as I have to get the adjusted blade configuration back to 3D CAD ASAP.


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Old 03-29-2010, 02:36 PM   #185
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Default 1/10.2 Scale B-47 Outrigger Retracts


I found an outrigger retract to fill a B-47's functional requirement. It takes time to not only find an integrated retract but to review
its behavior and see how it can be used to achieve the mechanical requirement at the same time it maintains the AUW target. You
constantly consider the AUW while you search.




After looking at three electric retracts I decided on X-Flight's mains. Video focuses on several system challenges typically found
"after" you bolt retrcts into your model. These include questions like:

(A). Is it mechanical and only driven by a servo?

(B). Is it an integrated gear designed to prevent motor/servo burn out if gear is stalled?

(C). Is it an integrated electronic gear design that protects expensive batteries if it is stalled?


The 1st system reviewed was lighter...too light for my confidence. It used a molded in stud to rotate the main gear as it swept through
its pathway. I prefer double ball link. The X-Flight retract system utilizes a double ball link. I will replace the oem narrow cage link with a
captive cage to keep it from "popping off" during a heavy landing.



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Old 03-30-2010, 02:28 AM   #186
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Default All Geared Up & No Place To Go..........Yet


This morning I was asked back channel what we were using for retract mains....well tail wheel retracts... of course... Like what else...
off the shelf will work



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Old 03-30-2010, 05:38 AM   #187
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Default Off The "Rack" Solutions

Above you see a Robart 160 series tailwheel retract. Yes, its an air system with lines, a control valve with dedicated servo, an air tank,
and mounted in the fuselage with an atomic bomb in the bomb bay (more news about that, at 11).

Reading threads in this site makes it clear most have had a bad experience or no experience at all with air operated retracts. This one
can be servo operated so don't give up on me yet............. I'd just as soon move an airline to the brakes and let that be it for air
op in our B-47.

The front and rear Robart 160's have an altered scissor...that part in the middle that folds over to lock it down and then pulled back to
raise the wheel, tires, and brakes up into the wheel wells. Front & rear retract are mounted facing opposite directions to permit them to
sit in scale positions.

This same retract will work well in David P's 1/16th B-47 as well. Both must mount to a hardwood bulkhead. In our case an integrated
bulkhead tied into our wing truss and internal diamond truss to assure everything stays where its put.


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Old 03-30-2010, 06:58 AM   #188
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Default Dims For Dem B-47 Mains

I forgot to give you the dims for dem retracts....almost called it a day then it hit me as I was half way across the room...


2.125" wide 2.75" front to back side from vertical shaft.




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Old 04-01-2010, 01:50 AM   #189
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Default Ta-ta-ta-taaaaaaaa... :)

Here's to Dave P. for going up and above....way out of his way to see we had what we needed in the way of a clear readable BAC drawing....

Dave...this is to hang in background behind build photos so we all know it was not trashed...

By the way..............................thanks!

Next, full size prints....


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Old 04-01-2010, 03:00 PM   #190
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Default

Watched a Biography on George Carlin yesterday. He spent 3 yrs in the Air Force as a ground crewman on B-47s

THE B-2 Worlds most expensive airplane.
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Old 04-01-2010, 03:37 PM   #191
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Default Hippy dippy "Weather"man.........

Originally Posted by Alpea42 View Post
Watched a Biography on George Carlin yesterday. He spent 3 yrs in the Air Force as a ground crewman on B-47s
That's a hoot...enanny.... ;^)

George probably served as a "weather" WB-47 ground crew with all blonds and brunettes......probably the source of his Hippy Dippy
Weatherman stand up routine. As Judy Patuti used to say..."It Could Haaaaappen!". Judy, cable TV's highly awarded first lady of
standup still works the crowds in Florida :^)


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Old 04-04-2010, 12:51 AM   #192
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Default Bias Torque Of In-line Bicycle Gear Configs.

This applies to U-2 and B-47 builders...

I was reviewing changes to Robart's 160 geometry when suddenly I found an excellent image of Robart's 160 gear which shows why
I chose their 160 gear for the B-47's mains.



Above image shows the back side of the bulkhead mount to permit you to see how a strong triangle permits what was originally a
tailwheel retract to work as your mains.

Sam suggested we place brass sleeve over bolt spaning bulkhead ID. This to replace button heads at swivel points. The entire
moving surface picks up a lot of resistance to bias torque. Note pm B-47's you steer with front strut unlike paired steering on B-52's.

This strengthened mains without appreciable AUW gain. Originally the 160 endured side loads of 40#. The two should provide the
lateral support we need. My extended landing approach is flat. Cross wind still has to be accommodated.

Don't care how good you are...crab release to face end of runway is a tuff move just before touchdown...

Last week I had correspondence with a "new" ECU/electric gear module designer of electric systems to replacement air cylinders.
An ECU enabling control of end point, speed, and stall voltage is necessary. Designing one that the Pacific Rim can't knock off is
very important for anyone investing in this technology. Don't want to see yourself coming around the corner!

It would be fabulous if the ECU incorporated door activation and end point management. An important issue on multiple piece doors.



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Old 04-07-2010, 05:53 PM   #193
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Default Electric Retracts Units

Hi Ed!

In your last (3Apr10) post you mentioned you had taken contact with a new electric gear module designer: can you post the name/address of this contact?
(I've tried to contact the French outfit that apparently bought Lado, but have not had any luck.)

RSVP if/when you have time; thanks,

Dave P.
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Old 04-07-2010, 07:09 PM   #194
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Default Electro-Mechanical Gains & Losses

Originally Posted by Capt. Midnight View Post
Hi Ed! In your last (3Apr10) post you mentioned you had taken contact with a new electric gear
module designer: can you post the name/address of this contact? (I've tried to contact the French outfit that apparently bought
Lado, but have not had any luck.) RSVP if/when you have time; thanks, Dave P.
Lots of interesting things going on out there.

I was not referencing LADO. However I communicated with the new French owner earlier this week. I don't quite understand why
what was...still is.

As for my reference it is to a friend's new actuator and controller for replacement of air cylinders in existing systems. I won't be
able to disclose who and where until he gets his bits and pieces lined up.

As it turns out there are several out there doing exactly the same thing. Some in the hobby industry, some hobbists seeing a need
and designing on their own.

I spotted one on RCU and he's already backing off disclosure as he apparently signed an NDA with someone with development $.

I found programmers out there re-inventing ECU functionality without having first composed a written specification...an interesting
concept. I ended up getting sideways with them when I stated the issue with every other electric/electronic retract system ever
made was durability, not control.

More when more is permitted to be shared.

Just before lunch I ordered a pair of ECU's from Futaba for a plug-N-play solution using the mechanical version of Robart's 160's.
I would use 160's for your B-47.


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Old 04-07-2010, 07:23 PM   #195
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Default ECU???

Hi Ed!

OK, thanks. I can appreciate the need for "security" in this area.

Sorry to reveal my ignorance: what the heck is an "ECU"?

Will definitely consider the Robart 160s for my -47.

Cheers,

Dave P.
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Old 04-07-2010, 07:38 PM   #196
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Default

An ECU is an (E) electronic (C) control (U) unit. Basically it should be designed so the user can easily parameterize (select...not program)
to control motion of a device with respect to time...on, off, for how long. The selection of presets yields action across time...to include
reset, multiple start-stops, and possible linking or mixing with other ECU channels or devices (servos).

Micro wave ovens utilize ECU's. You select time to cook at prescribed temperature or a blast
of radiation at a given level.


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Old 04-07-2010, 08:00 PM   #197
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Default ECU???

Hi Ed!

What is the part/model number of the Futaba unit (I couldn't locate any such devices on Futaba's web site, searching under 'electronic control unit')? Is this just a controller for standard (not retract) servos, similar to a number of such units available from such outfits as SonicTronics, EMS, Oregon Scale Aviation, etc?

Dave P.
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Old 04-07-2010, 08:48 PM   #198
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Default Futaba Multi-Proportional Device Controller

Originally Posted by Capt. Midnight View Post
Hi Ed! What is the part/model number of the Futaba unit (I couldn't locate any such devices on
Futaba's web site, searching under 'electronic control unit')? Is this just a controller for standard (not retract) servos, similar to
a number of such units available from such outfits as SonicTronics, EMS, Oregon Scale Aviation, etc? Dave P.

Dave,

Many of these are explicit to operating systems and often specific revs of an OS. That is the case with the Futaba unit. We are using
14MZ's & R6014 receivers operating in (G3/2048). ECU permits programing additional 16 channels but you have to give up two of R6014's
channels for access (1 ECU each). Yes, that totals 28 individual programmable channels...

In addition to ECUs, some of our servos are programmed to behave in an explicit manner. Each brand has its own set of do's and don'ts.
There are ECU's available which work with other brands.


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Old 04-08-2010, 03:36 PM   #199
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Default OCD Control Freaks Rejoice ! ! ! ! ! ! !

OK, 24 hours has passed and Sam should have had enough time to order his two so I will share this jewel with everyone reading this
thread...at of over 10,000 views I think Tower will deplete their inventory and have to go to the well for more at the sale price.

Folks, these are being sold at 90% off ! ! ! ! Originally priced at $99.99 each, they are now $9.99. Not a typo, just something less than
understood...and appreciated by the seller and apparently the market place. These can be used (conditionally) with Futaba transmitters
described in the Futaba product description you see when you click on the above link.

Tower's radio people apparently failed to read Futaba's instructions stating the unit has to be plugged into ch 11 or 12 on the R6014HS
(G3/2048) 14 channel FASST receiver because when asked about this unit...they replied it did not work with FASST. It states it does not
on the Tower web site product description.



I currently use Multiplex's 12 channel system upgraded to 2.4 and am in the process of moving back to Futaba after HiTec's
announcement it will not market it's Multiplex division's 2.4 system in the US.


I was going to wait until I ordered my 14MZ (G3/2048) before ordering a pair of the 8 channel ECUs @ $99.99 each. After reading the
ECU did not work with the 14MZ FASST it didn't make sense to me.

1). I raced off to RCU where I posted my inquiry in the Futaba discussion thread.

2). Why would Futaba manufacture a device clearly created for management of high end modeling projects not work with another device
explicitly manufactured for the management of high end modeling projects? Especially when the devices were released in a relatively close
time line of manufacturing...

3). I said to myself.... Self check this out.

4). Check out #1. Call Tower (aka Hobbico) and talk to the Futaba specialist 1:1. I called but as close as I got was someone reading
their own web site text.

5). Having a long term friend at Futaba Corp. I composed an email in so many words asking "why does it not work with the 14MZ
(G3/2048) FASST?".

I received prompt reply saying "I don't know". Something we learn is its not a less than to be honest and...its the first step in acquiring
valuable knowledge. Next sentence said he would ask an engineer and we'd find out. The second step in acquiring knowledge about such
things.

6). A couple of days pass and I receive a reply to my query on RCU from an English FAI scale competitor who not only used a 14MZ
(G3/2048) but the Futaba channel expander ECU in question.

After reading my post he promptly charged his US opsys 14MZ, a servo, his R6014HS receiver, and the Futaba MPDX-1 Multi-Proportional
Decoder 8-Channel expander he owned and had used previously...................... ;^)

Not taking anything for granted...he plugged it all together and set up the Futaba MPDX-1 Multi-Proportional Decoder 8-Channel expander
in either channel 11 or 12 then plugged a servo into the Futaba MPDX-1 Multi-Proportional Decoder 8-Channel expander ECU. He programmed
the servo's functionality utlizing the set up screen on his 14MZ (G3/2048) as required. The servo worked exactly as programmed to function
X distance across time..


Below is a link to the English language version of Futaba Corp's product manual.


7). I received an email forwarded from Japan wherein a Futaba engineer stated the Futaba MPDX-1 Multi-Proportional Decoder 8-Channel
expander works very well with the 14MZ and R6014HS FASST receiver...in FASST mode. Two (2) Futaba MPDX-1 can be used with each
R6014HS and the 14MZ in (G3/2048) FASST mode (as stated on Futaba's MPDX-1 web page.

So, friends and neighbors (literally) if you own a Futaba 14MZ or FX-40 system using FM, PCM G3 or PCM 1024 receiver...or a 12FG or 12Z
with software version of at least 1.31 (upgradable through download)...its a steal at the original $99.99 each much less the give away price
of $9.99 each at Tower while they last!



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Old 04-10-2010, 11:08 PM   #200
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Default Back To The Details...


MPDX-1's arrived... Both FedEx and UPS are passing off smaller packages to USPS Priority. Faster delivery than either would have
been on their own. I'm back working on the electric conversion of our mains, again...

Sam's back working on our flap carbon fiber tele-tubies.



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