pierre smith
Well Known Member
In another thread from yesterday, Doug was shooting for economy and I went out and tried some efficiency tests.
A discussion of prop RPM limitations came up, so I called Hartzell a little while ago.
My blended airfoil prop has no RPM limitations, other than a 2700 RPM redline, and continuous operation at any RPM is OK with the IO-540 Lycs with no more than 285 HP.
The IO/O-360 engines do have an RPM "window" limitation of 2000-2250 continuous for some blades so your best bet would be to go to Hartzell for good info.
Best,
A discussion of prop RPM limitations came up, so I called Hartzell a little while ago.
My blended airfoil prop has no RPM limitations, other than a 2700 RPM redline, and continuous operation at any RPM is OK with the IO-540 Lycs with no more than 285 HP.
The IO/O-360 engines do have an RPM "window" limitation of 2000-2250 continuous for some blades so your best bet would be to go to Hartzell for good info.
Best,