whatmovesyou
Another scratchbuilt arose from a challange.
Barrel roll.JPG 


After seeing me fly the "barrelroll" (named after the maneuver I can't do), a club member challenged me to see if I could do some design with 2 barrels. This one is 18 dia., 24 inches long, has elevrons, and a rudder inside mounted vertically. Motor is a Grayson foamy combo 3D.

So this is what I scratched built and it flys . Need to get CG in tow.

So here is how I did it.
Made a circular tube 8+ inches and 18in long by holding FFF around hot water pipe(200F) and hot glued the seam to make it circular. After the second tube was made, hot glued both together and made 2" squares about 8" long for front and back.
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Purpose of the square was for strength of tubes and a mount for Grayson motor which sticks out about 2 3/4". How did I know the length? Answer(looks good).

Now for the rear.
013.JPG 

How long outside tube for square? Answer 4 1/2" (looks good.)
Now to prevent flutter for control surfaces and it better be light.
Had plenty of round servo arms so I glued it to each side so its centered in both axis.

014.JPG 

Now I found a carbon rod the width of my gismo and drilled out the plastic servo so it fits real snug.

Next for control surfaces.
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I calculated(looks good) 6" wide and 7 1/4" long and for rotation used blue (hot glued) nyrod that fits rather snug over the carbon rod. Voila, need to stop here.
I like to design and fly unique planes.
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LukeWarm
Post a video, I'd like to see it fly.
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FED50H
Another unique creation. Nice one What. I too am looking forward to a flight vid.
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whatmovesyou
Will do a video when winds calm down.
Here is a video of the original beast. Very hard to control with no wings in a turn. You have to roll it to turn.

I like to design and fly unique planes.
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whatmovesyou
Now to control the surfaces. Again, servo arms were drilled out and glued to the nyrod that was extended out.

016.JPG 

So now slide control surface over carbon rod. Since the circular arm is hard plastic, it will rotate nicely within round servo.
016.JPG 017.JPG 
I like to design and fly unique planes.
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iliands
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Will do a video when winds calm down.
Here is a video of the original beast. Very hard to control with no wings in a turn. You have to roll it to turn.


nice
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whatmovesyou
To retain control surface, cut carbon rod correct length and found a washer and wood screw(threads fit in carbon tube) and installed elevron, hot glued inside of carbon tube only and pushed washer and wood screw till it stopped. There you are.
Double trouble 001.JPG 


I set it up so elevons extend 1/2 inch outside of tube so it has external airflow.
For rudder, looks good at 6" high and a nice angle. Is it enough? we'll see.

Double trouble 003.JPG 

Install three servos and you are ready to go. Front end of plane shows battery inside and presently trying to figure proper CG.
Double trouble 004.JPG 

For me, the hardest part is coming up with a nifty name. When I saw the 2 barrels glued, a double barrel shotgun can to mind, so it's Double Trouble!!
I like to design and fly unique planes.
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LukeWarm
Without a tail, it would have flown poorly. You did a great job on it. That plane is a real head turner. Thanks for the video.
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HiFlite
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Will do a video when winds calm down.
Here is a video of the original beast. Very hard to control with no wings in a turn. You have to roll it to turn.


It's a bird! It's a plane! It's a BURRITO!!!
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squishy
Very innovative design dude, great job, I can't wait to see it fly...
"Education is not about filling buckets; it is lighting fires." W.B. Yeats

http://www.youtube.com/user/squishy654
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whatmovesyou


Same as swept wing, camera cut off, so decided to post segment just to show you anything can fly. So 2 projects are out of my hands with things acting weird, may be I shouldn't call it double trouble.
Interesting points to make, with power, barrels level off and goes like heck and since surface controls are large, very touchy.
Back off power, nose up it goes and it does high alpha easily and even slides into a hover and rotates. Think the rudder control may have to be increased. So be a fun toy.

Will do more videos when wind is low.
I like to design and fly unique planes.
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whatmovesyou
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Very innovative design dude, great job, I can't wait to see it fly...


Its up on video above.
I like to design and fly unique planes.
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