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Old Jan 27, 2012, 09:48 PM
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Indoor Rockwell OV-10 Bronco

Here is a new design I have been working on. It handles high speed and slow flight really well. It lacks the elevator authority to get into a proper stall and it doesnt seem to want to fall off to either side.

Made out of 3mm depron and reenforced with CF rods. The motors are mounted with a tiny bit of upthrust and that really seems to help it pull through the coners. Only one rudder moves and it is really effective at turning left but not so much for turning to the left due to the non-counter rotating props.

I will have to clean up the sketchup file and possibly make a sharpie files for it now that I know it flies well.


Here is all the crap I used to power this little gem. Wingspan is 26"

C10 Micro brushless outrunner 2900kv
http://www.hobbyking.com/hobbyking/s...idproduct=6584

TURNIGY Plush 6A /.8bec/6g Speed Controller
http://www.hobbyking.com/hobbyking/s...idproduct=4318

GWS EP Propeller (DD-5030 127x76mm) (6pcs/set)
http://www.hobbyking.com/hobbyking/s...dproduct=10033

Flies best with a 360mAh 2S but has no trouble hauling around a bigger pack.

Servos are some 2.5gram ones I got from a clubmate.


Depron OV-10 Bronco (1 min 15 sec)
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Old Jan 28, 2012, 07:58 AM
Lost but making good time
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helno,

Nice work! Are you going to post some more drawings on the plane?

Regards,

Hankg
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Old Jan 28, 2012, 08:27 AM
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I've got to clean the plans up a bit but I will post them in the next day or so.

Edit: Here is the updated sketchup file. PDF as well.
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Last edited by Helno; Jan 28, 2012 at 11:15 AM.
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Old Jan 28, 2012, 05:24 PM
Lost but making good time
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Helno,

Thanks for the plans. I've been looking for something interesting to build with twin motors. Used to talk to the FACs that flew in these things a lot in my younger years.

Regards,

Hankg
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Old Jan 29, 2012, 12:15 AM
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Very nice!
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Old Jan 29, 2012, 11:32 AM
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Here is a picture of it all ready to fly with the larger battery.

Pretty simple control linkages just 1mm carbon rod with heatshrink pivots.
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Old Feb 19, 2012, 09:32 PM
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Could you do a tilled version of the PDF?
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Old Feb 20, 2012, 08:06 AM
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Quote:
Originally Posted by torque roll View Post
Could you do a tilled version of the PDF?
Here is my attempt at a tiled PDF. I CNC my models so I never really use prints.

After flight testing I have found it performs far better with slightly smaller props.

4x2.5 works really well. I find with the larger props it is slightly faster but the torque makes it very slow to turn right.
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Old Feb 20, 2012, 12:08 PM
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Quote:
Originally Posted by Helno View Post
Here is my attempt at a tiled PDF. I CNC my models so I never really use prints.

After flight testing I have found it performs far better with slightly smaller props.

4x2.5 works really well. I find with the larger props it is slightly faster but the torque makes it very slow to turn right.
Thanks
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Old Feb 20, 2012, 02:17 PM
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Where did you put the elevator servo, and how did you attach the pushrod?
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Old Feb 21, 2012, 04:39 PM
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All of the servos are mounted on the booms.

One on each side with the elevator sorvo mounted lower on the boom that the aileron servo which was right up against the wing.

The pushrod goes straight out to the elevator and has a single support at the wing trailing edge to keep it from flexing.
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Old Feb 21, 2012, 04:51 PM
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Thanks!
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