On Mon, 2002-11-18 at 14:17, Andy Ross wrote: > Curtis L. Olson wrote: > > BTW, Andy, how hard would it be to accept an initial airspeed for > > the YASim models so we can do in-air starts with those? > > Not hard at all. The only reason it doesn't is that, heh, I got > really confused about how to figure out the units and precedence > rules. Speed can be set in about a zillion ways (roll/pitch/heading > vs. x/y/z vs. north/east/down coordinates, IAS, TAS, knots, m/s, mach, > etc...), and it seemed like the FDM is responsible for figuring out > what goes where. > > If you can point me at a property to read for an authoritative > velocity source, I'm there. :) > > A slightly harder problem is getting the aircraft trimmed for the > selected environment. A really annoying property of most (all?) sims
Almost all professional sims have a trimming routine. They are not only useful for the instructor, but also very helpful when using a motion base and control loaders. > is that they start you out at the right point, but way out of trim and > you wreck the setup trying to get stabilized. I can probably > canibalize some of the solver code for that. It is not a terribly hard problem to solve, but does require some patience in discovering and covering most situations. > > Andy -- Tony Peden <[EMAIL PROTECTED]> _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
