4-rotor parts

Hey all, I've been doing gliders since I was 13, and have had an idea for a 4-rotor helicopter nagging at me. I've got some free time, so I figure I'd start building. It'll be pretty much a gas powered dragonfly (a 4-rotor electric heli) but have 1 central mounted motor, and have the 2 side rotors tilted forward at 45 degrees. my question is, where would be a good source for tail rotor assembly's?? I would prefer belt driven, and I would need 4 of the same. Any help would be appreciated.

Big Matt

[Daz(DJLFlapper)]

Big Matt

Sorry mate this one is way above my level of experience. This is more of an engineers question, One that works with protertype helis.
I have however been giving your concept some serious thought and cant see how you would need a tail rotor. Your angled rotors would produce turns if they where developed so you could alter the pitch on them. You have a problem where your drive going to all rotors will be the same speed if coming from one engine. The advantage with the electics is that with simple cuircutes you can alter the power to each rotor.
This is going to be a tough project and I wish you luck with it. It however is not going to be an easy one to work through. the problems with the use of gas powered engines will be a challenge in itself.

regards,
Darren.

P.S If you should get this going then I would love to see it. Good Luck with it.

sorry if I was a little vague before. you have 4 rotors, 1 in front, 1 in back and 1 on each side. The front and rear rotors are positioned so the blades rotate on a horizontal plane (give lift). The side rotors (angled) also provide lift, but being rotated 45 degrees forward, also provide some propulsion forward and the ability to rotate around a vertical axis. Then, all 4 rotors are connected to 1 engine. engine speed increases, the heli goes up. 1 servo connected to the collective on each of the front and rear rotors. collective up on the rear and down on the front will lift the rear and provide forward motion. The same for turning, 1 servo connected to the collective of the side rotors. I want to use tail rotors, because they only have a collective, no cyclic, so less weight. And a belt driven system would be a lot easier to make. I can machine the gearboxes required for shaft drive rotors if I have to, but it's a lot of extra work. So again, back to my question, where can I get complete tail rotor assemblies?? I can find individual parts, but that will get expensive real quick.

Thanks

Big Matt