Since I first bought a computer radio, I've set up almost all my aileron-elevator slopers with spoilerons for landing. All these planes required some amount of up elevator compensation to keep the nose level when the spoilerons were deployed. I always assumed this was just because of the reduced lift on the wing, or perhaps some pitching moment being created by the spoilerons being deployed.
All these planes had strip ailerons though. In the last year, I've built 3 airplanes that have only tip ailerons and no flaps. These are wildly different airplanes with different planforms, spans, and airfoils, but they all share one thing in common: with spoilerons deployed, they need absolutely no elevator compensation...they stay perfectly level. Now I'm wondering if the pitch change in the strip aileron models is actually due to the spoilerons blanketing or otherwise affecting the airflow over the horizontal stab, rather then just some pitching moment caused by the wing. I'm just curious about this...any thoughts? -- _____________________________________________________________ Brett Jaffee [EMAIL PROTECTED] R/C Slope and Power Homepage http://home.earthlink.net/~jaffee The Unoffical Extra 300 Home Page http://members.nbci.com/bjaffee/extra300/ OnTheWay Quake 3 Server Utility http://www.planetquake.com/ontheway _____________________________________________________________ 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.

