David Megginson wrote: > When you engage a starter on a piston engine (I have no turbine > experience), it spins the propeller at an extremely slow, constant > speed -- maybe 30 rpm -- until the engine fires; at that point, the > engine spins the propeller up to speed (say, 1000 rpm with the > throttle slightly open) almost instantly.
Yeah, although that's not too terribly different than what happens now. The issues are all with tuning and threshold changes. The problems with the current approach that I can see: + The "start" threshold is probably too high (it's currently set to 200 RPM, which doesn't match your value of 30 very well.) + The torque behavior of the engine and propeller at low speeds is kinda broken. The propeller isn't draggy enough, so you had to tune up the engine friction to get the idle speed right, which led to complaints on IRC that the Mustang wouldn't start, which led me to hack in the starter motor changes for a near-term fix. Turning down the start RPM would probably be the fix required here. I'll check that in instead (I think I might use 60 instead of 30, which really does seem awfully slow) and see if folks like it. Andy _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
