Originally posted by qfrc flier
Hi guys,
was hopping for some feed back from you guys.Idesigned a lowwing plane.It has a constant cord wing, split elevator ,and large rudder.the problem is that the rudder has very little yaw effect. At hi speed when you kick the rudder it kind of stalls with the nose dropping and the plane just hagging there.I have another plane a contender 60 and has same caracteristics.Was wondering if anyone had any idea why they are doing thisboth planes have no dehedral in them. thanks for listening. appreciate any feed back.heres a picture of the plane.
joel
How much incidence do you have on the wing?
I ask that because it's possible that you have some incidence that is being canceled out by the angle of the horizontal stabilizer, and that, in turn, is creating so much turbulence around the rudder that it's making it ineffective.
It's amazing how much the effectiveness of the tail can be affected by the wing. - Hence the fact that full size airliners have the stabilizer positioned as far out of the stream created by the wing as possible.
Just a thought!
David C.