The use of spoilerons is much like the use of upward deflected ailerons during crow. When the neutral position of both ailerons is up, as in crow, then a normal aileron input will send one aileron up and the other down. The problem is that the aileron that is deflected upward may hit the stops.
One way to help out the situation is to program reverse aileron differential when in crow or spoileron mode. Programmable mixes are turned on either with a switch or a motion of the throttle stick (that controls the degree of crow or spoileron) past a certain point, e.g., 50%. Once the programmable mixes kick in, reverse differential is added. At maximum crow, the ailerons are set such that they don't go further upward when an aileron input is given. However, the ailerons go down to the neutral position for maximum aileron throw at maximum crow. This way, one wing stays braked while the other wing tip (the one with the downward traveling aileron) speeds up. In addition, the plane rolls. Dick ============= >Ade wrote: >> > >> If you hold full aileron in then open the brakes the "up aileron" goes up.. >> then stops at only part spoiler.. the "down" aileron then keeps going up >> until you are only slightly short of the full up aileron. > >Well, yes it does still work proportionally. > >> If I reduced the amount of spoiler then I got more aileron but less braking. >> The Multiplex works quite differently so I do get as much down movement with >> the brakes deployed as I do without them. > >I see. I just never had a problem with that on the planes I using >spolieron on. I always had very good roll control. I suppose on >the 8U I could just add in a 1 directional mix that would move the >ailerons more downward when the spoilerons were activated, but I >haven't had the need for it. > >Brett -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Dr. Richard C. Williamson Phone: 781-981-7857 Room C-317 FAX: 781-981-0122 Lincoln Laboratory Email: [EMAIL PROTECTED] Massachusetts Institute of Technology 244 Wood Street Lexington, MA 02420-9108 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED]
