The International Cessna^® 170 Association

I'm curious if any folks here have any opinions or experience with different props at higher altitudes where field elevation is 5000' or higher? I know that the longer flatter pitch props work better for getting off the ground at lower altitudes, but what have you folks that live at higher altitudes use?

Same prop. Air's thinner for prop bite, but loss of density results in lower MAP so BMEP and HP is down accordingly. That's why static run up RPM should remain constant at different elevations.