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Originally Posted by tgrayson  Actually, for airfoils that weren't intended for high speed, critical mach can be quite low. I'm looking at some data indicating .58 or so for an airfoil similar to the one on the Beech, and that's at a low AOA. Put this aircraft into a 60 degree bank and the critical mach would be much lower. |
Put anything into a 60 degree bank and the critical mach should be lower. Let's just say then that hypothetically, the Mcrit on the 1900 is .58, a full 10% higher than .48. So let's say that you roll it over into a 60 degree bank, if you maintain altitude, then there's no way you'll even be at the barber poll. If you roll over into a 60 degree bank while diving then you might have some issues assuming Mcrit is lowered more than negligibly, but how often are you going to roll into a 60 degree bank in a dive? I'm a freight dog and that's rediculous, we don't even do that to get into dutch harbor.