>The definition of a positive aileron deflection is when the right-hand >aileron deflects according to the right hand rule - that is, trailing edge >down (TED). Unfortunately, this results in a negative roll rate - it would >be nice if our choice of coordinate system caused a positive aileron >deflection to result in a positive roll rate, but this is not the case. :-( > >Anyhow, yes, Tony wanted to control each aileron individually, so this was >changed. It *should* *be* the same to you and I. It's just that the left >aileron will get the negative of the right aileron deflection. > >A control system *could* use the ailerons as flaps AND as ailerons. These >are called flaperons. The space shuttle uses the wing outer control surfaces >as ailerons and elevator. These are called elevons. You might also combine >flaps, spoilers, ailerons, and elevator and call it a slapevon. Well ... >maybe not. ;-) > >In any case, Tony was right to split out the left and right aileron controls >because we might want to model an aircraft that addresses various control >surfaces in unique and interesting ways. > >Jon Yes, It is necessary to control the ailerons separately for widely use. I just found that a positive aileron pos result in a positive roll rate -- the JSBSim version is downloaded 2 weeks ago. It run with C172 model. and I did a little change. If you can be sure that positive aileron pos would result in nagative roll rate, that must be my matter. Let me check it . thank you for your patience.
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