> 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. > > Thanks > > Vivian Meazza >
I have a memory from years back of being told that the reason the Spitfire had such a distinctive sound was that the propellor tips _were_ supersonic. Maybe it was just heresay. RIchard _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
