Carleton University New UAV Inquiry - Page 2 - RCCanada - Canada Radio Controlled Hobby Forum
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Old 09-12-2016, 07:34 PM   #11
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Re: Carleton University New UAV Inquiry

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If you havent searched online for pilot 122" decathlon pics, then look here are a couple. You should be able to use the 122" (3.1m) WS and 86" (2.2m) fuse length to scale them and see where the servos sit.

but .... by my eye...

The flap servo is well within 1m, probably 50-60cm from the fuse CL and plane COG.

additionally, the fuse is only 2.2m long. You can probably just get the rudder servo outside 1m, if you direct drive tail mount it.

But.. the ignition and the whole engine(plug) are definitely well within 1m of the COG. It don't think you could center your mag sensor/coil between the rudder and ignition you could get both 1m away.

FYI, the build thread on RCC was posted by a guy from Ottawa area.
I think he is afflilated with Orleans Hobbies. You might try contacting him.
This hobby is a Slickness!
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Old 09-12-2016, 09:10 PM   #12
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Re: Carleton University New UAV Inquiry

I agree that a Decathlon would be a better choice for a off the shelf aircraft. Don't know how big your sensor is, with the decathlon mounting it on a boom out on the wing tip would be quite possible. Also you may be able to mount the boom with your sensor on the center wing section to go aft . The decathlon is also inherently stable because it is a high wing design plus there crap load of electronic stabilizer's out there that would also help. Is there enough room? Don't know as you haven't told us how much how much space you need.

Many years ago I designed and built a aircraft to carry a video camera. It turned out pretty good.

It is a twin boom design so that I could mount separate receivers in each boom. They were totally separate from each other for redundancy. LH Boom RX controlled the all the servo's on the left side and vice versa. RX Batteries were also mounted in each boom.

I designed it to be a pusher as airflow going over the elevator made it more effective allowing the airplane to rotate sooner and shorter take offs. Also this gave a clear view forward for the camera.

I used a Semi Symmetrical airfoil and built some under camber into it to give better low speed lift capabilities.

Flaps of course.

Tricycle gear for ease of handling with large wheels

outer wing sections detached for ease of transport.

Eventually I wanted to design a parachute recovery system. I see now some commercial UAV's are using it.

If you put enough power on a brick you can make it go vertical but landing is the issue especially in confined spaces. I wanted to have a deplorable parachute to land in those areas.

Cargo space is huge 30" x 10" x 8" and I am guessing it could easily lift 10 to 15 lbs. the only thing in the center section would be the fuel tank, ignition system, throttle servo, and ignition battery

Did I meet all my design goals? Never found out as I converted to a twin engine and flew it. It flew great.

It is still sitting here in my basement. Now with better gas engines on the market I may resurrect it and find out what it could do. Maybe
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Old 09-17-2016, 09:06 AM   #13
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Re: Carleton University New UAV Inquiry

Jason , another option would be a 12 foot Telemaster ARF , I know that it has a load carrying and slow flight characteristics that few others can match , and is used by other university's for various research projects,
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