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Old Nov 17, 2008, 05:32 PM
Planes, need more planes
flyguide7's Avatar
United States, MO, Chesterfield
Joined Feb 2006
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Falcon 120 EDF Conversion

I recently bought a Falcon 120 from nitroplanes with the intent to convert it to an EDF. I have seen some threads on converting this airframe to a wing but nothing specific to an EDF conversion on the stock airframe.

Here is my set-up:
120 E turbax fan
Castle 110hv ESC
Neu Motors 1521
12s 8000 lipo

Anyway If anyone knows of a build thread for this beast or can give me some advice please drop a line on this thread.

Thanks
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Old Nov 17, 2008, 05:59 PM
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racer1's Avatar
United States, AZ, Tucson
Joined Feb 2007
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See this thread post #197

http://www.rcgroups.com/forums/showt...ighlight=beast

I can answer most of your questions since it was my aircraft and EDF Fan

Clay
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Old Nov 17, 2008, 06:14 PM
Planes, need more planes
flyguide7's Avatar
United States, MO, Chesterfield
Joined Feb 2006
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Thanks for your reply Clay.

First of all how did you attach your fan to the fuse?

Where did you place your batteries?

Which servos did you use?

Which retract set did you use?


Thanks
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Old Nov 17, 2008, 07:58 PM
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racer1's Avatar
United States, AZ, Tucson
Joined Feb 2007
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Quote:
Originally Posted by flyguide7
Thanks for your reply Clay.

First of all how did you attach your fan to the fuse?

Where did you place your batteries?

Which servos did you use?

Which retract set did you use?


Thanks
Robart 520W1 Tri Gear 90 Deg

Futaba S3002 for tail or Hitec HS-225MG

DS821 Digital Sport High Torque Servo by JR for wings and flaps

Reciever Battery 5 cell 2000 ma pack.

Batteries were 12s 5000ma placed on where the servos mounted later I made a plate to side them more toward the rear. (nose heavy, still fly’s great). 8000 ma packs will require you to shift back your batteries even more.

I custom made a aluminum bracket to hold the fan,, it helped push the fan back. The width of the back of the Falcon matched the width of the Dynamax. I mocked it out of card board first then bent it up, and used screws to attach it to the base of the Falcon.

I took my fan unit and turned into a nacelle so that it had an intake ring and thrust tube.

It made the plane look right plus it is functional.

The ESC was mounted under the fan unit in the open air.

See if this helps

Clay
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Old Nov 18, 2008, 07:37 AM
Planes, need more planes
flyguide7's Avatar
United States, MO, Chesterfield
Joined Feb 2006
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Awesome Clay! Great looking plane. I love that fan mount. Do you know what gauge the sheet metal was that you used?

Also what did you use for the nacelle?

And finally where did you locate your C.G.?

Thanks.
Ed
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Old Nov 19, 2008, 11:00 PM
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United States, AZ, Tucson
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CG Factory settings 13 inches from leading edge

Fan mount made from 60 thou aluminum sheet bent to shape

Nacelle made intake ring of thin ply molded round and 1 1/2 inch out from the front of the fan , thrust tube made of mylar, blue foam covered, shaped then glassed.

Clay
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Old Nov 28, 2008, 08:04 AM
Planes, need more planes
flyguide7's Avatar
United States, MO, Chesterfield
Joined Feb 2006
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Well I met a guy on the plane home the other day who services Jet Joe turbines so I bought one tested and balanced for what i have in my lipos E-Turbax / Neumotors set-up so I decided to sell the e-set up and go turbine instead.
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