Does anyone have parameters on typical CS propellers to give a sanity check on some numbers I'm assuming?
1) Engine: IO-390, 210 hp @ 2700 rpm
2) Propeller geometry: Constant speed, two blade
3) Propeller diameter: 78" (yes, this is high for the rpm... although seems like a common rpm/diameter combo for the IO-540)
4) Blade activity factor: ~89 seems to give me best efficiency, although up to ~100 is sane and gives slightly better climb.
The biggest question I have is whether the BAF I'm assuming is in the "normal range" that, say, Hartzell would be able to provide.
1) Engine: IO-390, 210 hp @ 2700 rpm
2) Propeller geometry: Constant speed, two blade
3) Propeller diameter: 78" (yes, this is high for the rpm... although seems like a common rpm/diameter combo for the IO-540)
4) Blade activity factor: ~89 seems to give me best efficiency, although up to ~100 is sane and gives slightly better climb.
The biggest question I have is whether the BAF I'm assuming is in the "normal range" that, say, Hartzell would be able to provide.
