Honestly, I'm not trying to be sarcastic, but I'd say that if you are thinking your plane's performance suffers enough to need v-tail differential, you should consider a few other issues: A. Your flying spot has such weak thermals that your plane sinks no matter what you do, and you are trying to fix thermals by fixing your plane (been there, done that). Maybe the only thermal generators are at the tops of those 200 foot trees, and you are tossing your plane into the draft between them. B. You need to try moving the CG back, maybe ridiculously far back, so that the tail control surfaces have a greater effect and need to move little, if any, in a turn. C. You need to try more flapperon differential, maybe ridiculously more, nearly to the point where only one flapperon moves at a time, to coordinate the turns. I had v-tail differential figured out at one point on my 8UAF, and finally removed it in disgust after addressing the issues above. Good luck, Rob Crockett Grass Valley, CA RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
