>How do you deal with adverse yaw caused >by a V-tails use as a rudder?
I think you mean adverse roll, not adverse yaw. Yes, a V-tail has adverse roll which forces you to deflect the ailerons a bit more while rolling. On the other hand, for a given amount of yaw moment, the V-tail has less of its own induced drag than a conventional vertical tail of the same height. I think the conventional tail slightly wins here overall, but that's a guess. I haven't run the numbers. It's surely configuration dependent to some extent. If you're holding rudder into an established turn, the adverse roll of the V-tail has an unexpected benefit -- it unloads the inside wingtip and helps to suppress tip stall. In practice the effect is very small, but then we're talking very small differences here in any case. I see the V-tail vs X-tail choice as mainly a structural, mechanical, and construction issue. The aero differences are puny by comparison. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
