Richard Bytheway said: > > I had already shown by some pretty simple math that at 2850 > > rmp the tips of > > a 1.65m radius propeller would be supersonic and therefore highly > > improbable, but we now know that the data of hp, gear ratio, > > rpm etc all tie > > together.
At higher altitudes? IIRC when working on the p51d I figured just below 600mph was the speed of the propellor tips. The merlin had a slightly higher max rpm figure (3000) at that point. Best, Jim _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
