Quote:
Originally Posted by WVOtoGO
All I’d like to add is never confuse the application of materials used in piston driven aircraft propellers with the blades of a turbojet/fan engines. They are two totally different applications with two totally different requirements.
There is a hell of a lot more involved than cost.
Flex requirements. Vibration absorption/transfer. Gyroscopic issues. Power input/removal rates. Crankshaft power impulses. Torque/Leverage issues…..
|
I think titanium would be perfect for a piston driven aircraft propeller. It would flex quite a bit less than the aluminum, but that could be designed into the pitch. The weight is comparable to aluminum, so the gyroscopic issues are minimized. It's much stronger than aluminum so that it can take significantly more power and the crankshft power impulses wouldn't bother it.
I don't see any detriment to titanium for a piston driven propeller other than cost and the fact that it's more than you need to get the job done.