Andy Ross writes: > And on that subject, would you like to pick a property tree for the > FDM output properties? How about "/control-positions"? Adding this > support to YASim will be quick.
Currently, JSBSim uses an /fdm subtree to report some information, and /engine subtree, and a /gear subtree if there is retractable gear. I'd love to hear suggestions for making all of this more consistent and intuitive. > Some things, though, might get a little complicated. On some aircraft > (like the 172 Curt describes) trim is implemented as a mere offset to > the control position. On others, though, it's a change to the > incidence angle of the whole assembly. The MD-80 works this way; > remember the crash due to the stripped jack screw? That's something we have to implement model-by-model anyway, so we'll just try to do the right thing. > So distinct aircraft models will require special support from the FDM. > There's no single "elevator" output that will work for all of them. If the elevator angle is always reported relative to the incidence angle of the horizontal stabilizer, we should be OK. I think that incidence angle should be a separate property from trim, though, just in case there's a plane somewhere that uses both. All the best, David -- David Megginson [EMAIL PROTECTED] _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
