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EDF pusher Jet scratch build- contest 2

Old 09-10-2008, 07:14 AM
  #1  
CHELLIE
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Default EDF pusher Jet scratch build- contest 2

Hi Everyone this will be my first Ducted Fan JET, so its going to be fun to try something New, it will be a profile Jet, with a 6MM wing and 9MM fuselage, the wing and fuselage only weight 2oz, the EDF is an E Bay Special , I think a 3 cell 1300mah 20C lipo should push it, it will have elevons and throttle, its a 3 channel ,Take care, Chellie
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Old 09-10-2008, 07:40 AM
  #2  
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Here are some motor specs,


RC ducted fan combo unit
54mm 6-blades w/ 2409-7T brushless motor
RC ducted fan unit, 6 blades rotor with a high power brushless motor
great for all jet type foamies warbirds!!
BUY MORE TO ENJOY OUR 50% OFF DISCOUNT ON SHIPPING!!!
Ducted Fan Specification
<TABLE borderColor=#000000 cellSpacing=0 cellPadding=1 width=657 border=1><COLGROUP><COL width=133><COL width=517><TBODY><TR vAlign=top><TD width=133 bgColor=#00ff00 height=10>Dimensions
</TD><TD width=517 bgColor=#00ff00>62mm outer dia. x 71mm length (w/ motor)
</TD></TR><TR vAlign=top><TD width=133 bgColor=#00ff00 height=7>Shaft size
</TD><TD width=517 bgColor=#00ff00>3.175mm ( spinner adaptor type shaft)
</TD></TR><TR vAlign=top><TD width=133 bgColor=#00ff00 height=6>Weight
</TD><TD width=517 bgColor=#00ff00>71g ( with motor)
</TD></TR><TR vAlign=top><TD width=133 bgColor=#00ff00 height=5>Thrust
</TD><TD width=517 bgColor=#00ff00>680g / 1.5lbs ( flying weight)
</TD></TR></TBODY></TABLE>
Motor Specification
<TABLE borderColor=#000000 cellSpacing=0 cellPadding=1 width=545 border=1><COLGROUP><COL width=212><COL width=326><TBODY><TR vAlign=top><TD width=212 bgColor=#00ff00 height=10>Type
</TD><TD width=326 bgColor=#00ff00>2409H/7T
</TD></TR><TR vAlign=top><TD width=212 bgColor=#00ff00 height=7>Shaft size
</TD><TD width=326 bgColor=#00ff00>3.175mm
</TD></TR><TR vAlign=top><TD width=212 bgColor=#00ff00 height=6>KV
</TD><TD width=326 bgColor=#00ff00>5300kv
</TD></TR><TR vAlign=top><TD width=212 bgColor=#00ff00 height=6>Max drain current
</TD><TD width=326 bgColor=#00ff00>57A
</TD></TR><TR vAlign=top><TD width=212 bgColor=#00ff00 height=5>voltage
</TD><TD width=326 bgColor=#00ff00>11.1v ~ 14.8v(3s ~ 4s lipo
</TD></TR></TBODY></TABLE>
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Old 03-01-2010, 06:39 AM
  #3  
babylon5
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Originally Posted by CHELLIE View Post
Here are some motor specs,


RC ducted fan combo unit
54mm 6-blades w/ 2409-7T brushless motor
RC ducted fan unit, 6 blades rotor with a high power brushless motor
great for all jet type foamies warbirds!!
BUY MORE TO ENJOY OUR 50% OFF DISCOUNT ON SHIPPING!!!
Ducted Fan Specification
<TABLE borderColor=#000000 cellSpacing=0 cellPadding=1 width=657 border=1><COLGROUP><COL width=133><COL width=517><TBODY><TR vAlign=top><TD width=133 bgColor=#00ff00 height=10>Dimensions
</TD><TD width=517 bgColor=#00ff00>62mm outer dia. x 71mm length (w/ motor)
</TD></TR><TR vAlign=top><TD width=133 bgColor=#00ff00 height=7>Shaft size
</TD><TD width=517 bgColor=#00ff00>3.175mm ( spinner adaptor type shaft)
</TD></TR><TR vAlign=top><TD width=133 bgColor=#00ff00 height=6>Weight
</TD><TD width=517 bgColor=#00ff00>71g ( with motor)
</TD></TR><TR vAlign=top><TD width=133 bgColor=#00ff00 height=5>Thrust
</TD><TD width=517 bgColor=#00ff00>680g / 1.5lbs ( flying weight)
</TD></TR></TBODY></TABLE>
Motor Specification
<TABLE borderColor=#000000 cellSpacing=0 cellPadding=1 width=545 border=1><COLGROUP><COL width=212><COL width=326><TBODY><TR vAlign=top><TD width=212 bgColor=#00ff00 height=10>Type
</TD><TD width=326 bgColor=#00ff00>2409H/7T
</TD></TR><TR vAlign=top><TD width=212 bgColor=#00ff00 height=7>Shaft size
</TD><TD width=326 bgColor=#00ff00>3.175mm
</TD></TR><TR vAlign=top><TD width=212 bgColor=#00ff00 height=6>KV
</TD><TD width=326 bgColor=#00ff00>5300kv
</TD></TR><TR vAlign=top><TD width=212 bgColor=#00ff00 height=6>Max drain current
</TD><TD width=326 bgColor=#00ff00>57A
</TD></TR><TR vAlign=top><TD width=212 bgColor=#00ff00 height=5>voltage
</TD><TD width=326 bgColor=#00ff00>11.1v ~ 14.8v(3s ~ 4s lipo
</TD></TR></TBODY></TABLE>
Hi Chellie, the 2409-7t motor is quite low KV.

You probably could use in on a smaller ducted fan like the 70mmEDF but you will need 4S lipo for performance.

I have modified the motor so that it can fit into hoa ye 89mm EDF.
Runs around 36amps on 3S lipo. It spins the 89mm EDF at around 24,000 to 28000rpm.


Cheers
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Old 03-02-2010, 03:25 AM
  #4  
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Default 2409 7t motor modified for 89mm EDF

Hi Chellie, here is a couple of picture of what I did with the mentioned motor.
The entire EDF +motor + bullet weighs a mere 154grams.
For a time being, this motor setup will run on 3S lipo.

More next time.

Cheers
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Old 03-02-2010, 05:42 AM
  #5  
CHELLIE
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Originally Posted by babylon5 View Post
Hi Chellie, here is a couple of picture of what I did with the mentioned motor.
The entire EDF +motor + bullet weighs a mere 154grams.
For a time being, this motor setup will run on 3S lipo.

More next time.

Cheers
Thats Kewl, Nice job, Just keep it under 100 MPH Take care, Chellie
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Old 03-11-2010, 09:37 AM
  #6  
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Default 2409 7t on 89-90mm edf test flight

Hi Chellie, test flight successfully, the 89-90mm EDF on a converted twin micro-jet .
Thrust is just 1:1 . The plane weights just over 1kg.
Runs on 4500mAH 3S packs peaks at 36amps at around 25000-29000rpm

This motor is 9pole and around 2.5Kv/V .

Plane is not very fast but quite fast.

Plan to upgrade the fan with a more powerful motor on 4S 400mah lipo.
More next time.

The blue colored plane in the back ground is the smallest version of micro-jet....all from multiplex.

Cheers
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Old 09-10-2008, 10:42 AM
  #7  
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I was trying out the motor, and found out it does not like a 25Amp ESC, at 3/4 throttle it quits and gets hot after a short burst, Ok so I tried a 30 Amp ESC, same thing Ok proccess of elimination, I tried a 40 Amp ESC It Likes That Better It get a little warm, so does the lipo at WOT, but, I dont think I will be running it at WOT for very long, just in short burst, as it puts out a lot of thrust, I was Amazed I think I will have to be careful here, as to not tear off the wing Yes you guessed it, I dont have a Wattmeter yet, its on Order its the Watts up meter, soon, as I do need it, this motor is really gulping the amps, I would not be surprised to see 600Watts Take care, Chellie
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Old 09-11-2008, 06:05 AM
  #8  
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Hi Everyone here are a few more pics, I got a little more done, I added some 1/8" x 1/4" bass wood on the bottom, for strength and a skid, just needs the electronics installed, it weighs 6oz at this point Take care, Chellie

BTW I Trimed it in Pink, Because I know How Much Larry Likes Pink Just for you Larry
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Old 09-12-2008, 10:22 AM
  #9  
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Talking DONE Yea

Its DONE, Yea, Just have to maiden it now, I had to use a 2250mah 20C 3cell lipo to get the CG, and I tried to make it as Slippery as possible for a profile Jet, notice the air deflectors on front of the lipo and the servos, I also tried to enclose the wiring as much as possible, with a cover. on the top of the wing from the nose to the wing, I added a piece of Bamboo, to help to give the nose some strength, it helped, just incase of a hard landing , I gave the EDF about 1 to 2 degrees of down thrust, as I found out that these flat wings, seem to like to have a little load on the wing, to help stabilize them, at faster speeds, the motor and esc seem to like the 2250mah 20C 3 cell, as the motor and ESC get very warm, but not hot, at least i can hold them in my hand , maybe tomorrow i will give it a test flight Yes I will have Butterflies in my stomach, every maiden flight, that seems to happen for some reason, Take care, Chellie
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Old 09-12-2008, 11:31 AM
  #10  
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Talking Testing testing testing

Hi Its me again Ok here is a little video of the testing that went on im my Work Shop, as you can see, this thing wants to Take Off, everything seems to be working Ok, Soooo, its Madien time Yea, here are a few Specs on the jet,

1. 55MM EDF , with a 5300kv outrunner
2. 2250mah 3 cell 20C lipo
3. 40 amp ESC
4. 2- HXT 9 gram servos
5. elevon mixer
6. Berg 4 channel receiver 4L
7. AUW 15.5oz
8. Wing span 30"
9. length 20"
10. wing 6mm depron
11. fuselage 9mm depron

[media]http://www.youtube.com/watch?v=6q0U1F5c0q0[/media]

Last edited by CHELLIE; 09-16-2008 at 12:04 AM.
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Old 09-15-2008, 12:43 AM
  #11  
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Talking Maiden flight sweet

Hi Everyone It Flies Great Steve flew it, Ray Lanched it and I Videoed the flight, SWEET SWEET SWEET very solid flyer, its as fast as a Stryker, handels very well, and maked a nice screaming sound as it goes by I am very happy with this little Jet, here is a video of its Maiden Flight, Enjoy, Chellie


[media]http://www.youtube.com/watch?v=EJQMk9FKSHU[/media]
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Old 09-25-2008, 06:07 AM
  #12  
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Lightbulb What Did I Learn Doing this Build

OK, what did I learn doing this build, First of all, My motor is much more powerful than i thought I hooked up a wattmeter to it, and a powerful 3 cell lipo, and found out it is Drawing 500+ Watts at a little over 50 AMPS WOW Thats about 3/4 HP if 746 Watts is One HP, OK, I was trying to epoxy a 35 size nitro motor to foam thats about the same thing, It wont hold on for very long OK, I am Learning these Electric motors can be deceiving, in the amount of power they make here is what i did to make it work this time, I epoxied 2 -3/8 x 3/8 basswood motor mounts to the foam, and will attach the EDF to that, they look like 40 size motor mounts anyway, and i will screw the EDF to the wood mounts, I am making the Fuselage longer and a little wider below the wing, so a larger lipo can be used, Take care, Chellie
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Old 09-29-2008, 03:13 AM
  #13  
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Default Its all better now :)

Well its all better now, I glued 2- 3/8x3/8 basswood motor mounts to the fuselage, and used 2 bands of plastic, that are glued on with sumo glue and epoxy, that EDF wont come off now, I Hope I made the fuselage a little longer and wider at the bottom to fit a bigger lipo, and to regain my CG, from the weight of the motor mounts, I tried a 4 cell lipo in it, but it does not like a 4 cell so I will stay with the 3 cell lipo, more test to come on it, Take care, Chellie

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Old 02-11-2009, 03:04 AM
  #14  
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Hi Dave i used the wing from my twin boom pusher jet, and made a 9mm fuselage for it, the EDF flies well, but it will fly better if the edf was mid mounted, reason being, it wont recover from a stall, to much weight at the rear, but a mid edf will not be a problem, here is the dimentions to the wing, and the fuse you can make to fit your edf, just use the TLAR method That Looks About Right TLAR Take care, Chellie

http://www.wattflyer.com/forums/show...124#post265124



Chellies Pusher Jet Plans
Hi Everyone Well I Promised some Plans, Soooooo here they are, These plans are the Limit of my High School Mechanical Drafting , Lets see, I graduated from High School about 3 years ago, so that makes me about 21 now, yes thats right ?? Well It Sure Sounded Good to Me Here you Go, Have Fun, Chellie

Ps If using Foam Board, cut the slots in the booms and skid 3/16" rather than 1/4" for the 6mm depron



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Old 02-11-2009, 03:09 AM
  #15  
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Dave, i will look around to see if I have the pattern for the Fuse, and get back to you, Take care, Chellie
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Old 03-11-2010, 01:11 PM
  #16  
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B 5 .. A club mate of ours flys those Micro jets. 4300 Kv motors and 4 inch pusher props. If he gets the C G right they are very fast.
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Old 03-12-2010, 05:02 AM
  #17  
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sorry, my previous post correct the statement...plan to run the edf on 4s on 4000maH ....400mah won't make it LOL

hi Alphea, the blue colored micro-jet are capable of over 100MPH with the correct pusher or EDF setup. Agree, the c.g is located at the bump but it is quite tricky to hand launch the plane with a pusher prop and mind those fingers during the launch.


Cheers
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Old 03-12-2010, 05:09 AM
  #18  
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Originally Posted by babylon5 View Post
sorry, my previous post correct the statement...plan to run the edf on 4s on 4000maH ....400mah won't make it LOL

hi Alphea, the blue colored micro-jet are capable of over 100MPH with the correct pusher or EDF setup. Agree, the c.g is located at the bump but it is quite tricky to hand launch the plane with a pusher prop and mind those fingers during the launch.


Cheers
I seen one micro pusher jet go 175 mph

[media]http://www.youtube.com/watch?v=46nxgGaGj94[/media]
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Old 03-15-2010, 08:01 AM
  #19  
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Originally Posted by CHELLIE View Post
I seen one micro pusher jet go 175 mph

[media]http://www.youtube.com/watch?v=46nxgGaGj94[/media]
Hi Cheelie
Yes this particular micro-jet setup is just one crazy kilowatt hungry babe.
I think they juice the M-J to over a Kilowatt of power.

Next I am thinking of using your plane original plan for my next project but I will use corrugated plastic instead of depron foam with some modification to the wing to give it a suitable airfoil.

Corrugated plastic are more durable and take take in more abuse than depron foam.

Cheers
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Old 03-15-2010, 08:32 AM
  #20  
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Originally Posted by babylon5 View Post
Hi Cheelie
Yes this particular micro-jet setup is just one crazy kilowatt hungry babe.
I think they juice the M-J to over a Kilowatt of power.

Next I am thinking of using your plane original plan for my next project but I will use corrugated plastic instead of depron foam with some modification to the wing to give it a suitable airfoil.

Corrugated plastic are more durable and take take in more abuse than depron foam.

Cheers
Thats sounds neet please post some pics here of it Take care, Chellie
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Old 09-21-2010, 08:10 PM
  #21  
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That Looks Super nice Good luck to you on its maiden flight here is a nice way of tracking a fast plane. set your zoom to 1/4 to 1/3 and follow the plane with the open sights, sight the camera and the open sights on a object about 100 feet away, hope that helps, BTW my legs are way to sexy and might start a RIOT

http://www.wattflyer.com/forums/show...ighlight=rifle
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Old 09-26-2010, 06:29 AM
  #22  
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Default My own SPAD Jet part2

Hi, today weather was great with a gentle breeze blowing from the west of the flying field. A good day to maiden the experimental SPAD EDF jet.
First attempt to use the 1250mah 3S lIpo fail to launch due to tail heavy.
I replace it with a 1750mah 3S lipo and she flew. It was fast when you open up the throttle.

"Thrash Collector was already waiting to collect my plane. Lucky for me his service was not required".

Here are the video of the maiden.
The landing was hard due to the untrimmed elevator.
Second launching fails because the fuselage was already crooked by the previous hard landing and fail launch.
Need to rebuilt a better fuselage. More next time.

Here are the video link

[media]http://www.youtube.com/watch?v=GhcjdyppgZo[/media]

...and some static picturres. The "clip wing Mugi next to the Tail-less SPAD is just for comparison.

Thanks for viewing
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Old 12-31-2013, 09:29 AM
  #23  
solentlife
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Originally Posted by CHELLIE View Post
That Looks Super nice Good luck to you on its maiden flight here is a nice way of tracking a fast plane. set your zoom to 1/4 to 1/3 and follow the plane with the open sights, sight the camera and the open sights on a object about 100 feet away, hope that helps, BTW my legs are way to sexy and might start a RIOT

http://www.wattflyer.com/forums/show...ighlight=rifle
My pal Andrejs is a brilliant Video guy and I just give him my old trusty Sony 8mm and away he goes.



Digitals are ok - but I find that usually you cannot see anything in the screen so needs an eyepiece viewfinder.

Andrejs and I both found that once we get the model in the eyepiece - that's best and we follow ... If we try with screen - we lose it repeatedly.

The other good thing about the old 8mm Handycam - is the zoom ... I've yet to see a digital job as good.

[media]http://www.youtube.com/watch?v=9wAUkHV89dI[/media]

Nigel
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Old 09-26-2010, 11:47 AM
  #24  
CHELLIE
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It flies great Babylon5 You just need to work on your Landings Take care and Have fun, Chellie
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Old 12-31-2013, 08:58 AM
  #25  
kiwichristian
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Default any plans?

Any plans?
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