Dave Perry writes: > I like the c172p-3d 3d model and 3d cockpit a lot. > > Three comments/concerns for the recent changes to the flight model: > 1. The nose pitch-up when adding flaps seems extreem. If I don't > change the elevator trim a lot, the plane actually stalls. If I recall > correctly, the Piper Tri-Pacer had a slight pitch up with added flaps. > But the Cessna 172 nose pitches down a little and you have to > make minor trim changes more like the c182 in FlightGear.
I have some experience with a very high fidelity C172 model (commercial) based on real, instrumented flight data. Even at speeds as slow as 90 knots the model will come close to looping unless you add a lot of down elevator. I've never tried this in a real C172, but I can see that for a real pilot, pushing forward on the yoke to hold the nose down after applying flaps could become an almost unconcious act. When you are flying from mouse/keyboard it's just not the same and these sorts of effects can be surprising. Even just with flying with a yoke and having your hands on it, you really don't need to add much down force to keep the nose from ballooning. I have no opinions on #2 and #3 right now. Regards, Curt. > 2. The adverse aileron yaw is too much at modrate speeds. In fact, > since these changes, the wing leveler auto pilot will cause ever > increasing aileron oscillations leading to a crash with the c172p. > 3. The rate of descent with full flaps seems less than it should be. > > What do the rest of you think, especially those with recent real c172 > time? It has been several years since I flew the c172. > Regards, > Dave > > > _______________________________________________ > Flightgear-devel mailing list > [EMAIL PROTECTED] > http://mail.flightgear.org/mailman/listinfo/flightgear-devel -- Curtis Olson IVLab / HumanFIRST Program FlightGear Project Twin Cities [EMAIL PROTECTED] [EMAIL PROTECTED] Minnesota http://www.menet.umn.edu/~curt http://www.flightgear.org _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
