> Andy Ross writes: > > I'm not sure I understand. A given stick position corresponds very > > closely to a given angle of attack.
Nope, only for a given airspeed. The balance between tailplane and main wing, for a given elevator position, is speed dependent. Thus phugoids. > > If you change the stick > > position, the aircraft will "seek" to the new AoA. If you change > > the stick position very rapidly, it will seek rapidly, overshoot, > > and oscillate. That statement is only true if "rapidly" means "faster than 5 minutes". Basically, any elevator or trim change will cause a phugoid on any conventional aircraft. You need active pilot participation, an autopilot or considerable patience (waiting for the decay) to avoid it. > For anyone who'd like further reading on phugoid oscillations, see > http://www.monmouth.com/~jsd/how/htm/aoastab.html#toc106 Yup. _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
