Hey Folks,

I'm in the midst of designing a Twin VTOL. For simplicity, I'm making it a tail sitter (though it'll be able to take-off and land normally too). In a sense its looking sorta like a 3-d plane with a beefed up, 3 rudder tail. I'm putting super-tigre .61 counter-rotating engines in it to minimize torque issues (A big control hassle both for 3-d and heli's)-- But I'm also lined up to go to .90 if I need to.

I'm also putting in all kinds of other clever things (maybe too many) such as an airbrake-rudder (a Brudder??, a Rudrake??). Picture twin rudders that have a mixed control channel that pulls both rudders inward--with the effect of increassing drag w/o any yaw. The idea here is to agument engine thrust authority and responsiveness during hoover. Does that make sense?

I'd be interested in comments, suggestions and even some pointed ridicule (as long as its funny).

3 view sketches comming shortly

LA