The F-16 uses independently control elevator to help control roll during low speed flight (or so I've heard). This idea might work even better to control roll in prop wash. Use two servos for you elevator and mix it with your ailerons. -Assuming you have a radio with a mixer.
Good luck!

Gemarl

I got lost a while back lol...but youre talking about a variable pich prop right? Always turning at top speed, just have the blades in a nuetral position? Sound cool..and expensive...lol

I came late to this thread and read it through from beginning to end. I have little of immediate use to offer, my flying remains largely 2D if I can manage it. I prefer a model to fly
itself when I let go of the sticks. I will however make a few observations.

1) I love the range of ideas offered but wonder about the skill needed to use them.

2) I think the thread needs to go very little further before a "Harrier" design emerges, complete with vectored thrust, attitude control by tip puffer jets etc etc.

3) Please design the automatic stability control and I am on board/in the market.

I will now go back to my vintage Quaker.

John L.

Take a look at paul swany's mojo and you will see a airplane with plenty of aileron control in a hover. The most important thing is to have large ailerons that go ALL THE WAY to the fus. I have a 40 size katana with inboard trailing edge fairings that pretty much waste aileron space and make holding a hover from torque rolling a pain. Katanas suck!!!

Dave

This thread is very intersting.

I think the idea could easily take shape. I know on a smaller 40-60 size plane, I don't think the extra weight would be worth it. But when you have 30 lb plane that have 50 something pounds of thrust when they are 30% planes, then I think that the extra weight wouldn't be that much of a problem.

I like the idea more of the variable pitch rotors like from a tail rotor from a helicoper and have like a Hacker motor powering them from a belt drive in the fuse.

I like this idea, and think it would be possible. But, if it didn't work, then it would look great to have little fans at the tips

I say go for it

~Michael~

If you wanted to mix out the thrust/torque from the prop you could just mix the throttle to the elevator servos. You could also just mix it out with the ailerons to. I'm sure that in it self has all sorts of problems like AOA, speed, etc.

Dave

I don't know about ailerons, but FMA Direct's Mini Skysprite uses a tail mounted motor as a rudder. It is suprisingly responsive, and supposedly weighs less and takes less power than a servo or mini actuator. However, this is really only practical since the motor is so small that it spins up very quickly in either direction. It's a great little plane for $40.

As for larger scale, I think that it is a cool idea, but would have trouble making it through. Who really wants to buy extra motors anyway? I know that if we are looking at a .40 size, it would end up being either simple one direction thrust, or maybe a more complex but heavier tail-rotor system, but in any case, I'm guessing that the motors would be brushless outrunners, each requiring their own speed control which comes to about $200+ at the least. Also, wouldn't there be some wing aerodynamic problems inherent with a hole in the middle of a wing? It would be interesting if you get any extra lift if both are pointing down though...VTOL[8D]

Very nice concept for the VTOL type thing using these.

I think if you are serious and want you plane to look awesome stopping the torque WITHOUT the right aileons, then I think $400 wouldn't be anything to have some fun with and have a awesome looking plane

I still say go for it

~Michael~

Has anyone seen Eddie Weeks "The RigIt uses the same principle you are talking about but is a little different. See for yourself " [link=http://www.corpcomp.com/weeks1/Rig/Rig.html]Here[/link]

It's actually pretty amazing turbine concept...