Nathan Young wrote:

I have a PA28-180 with a fixed 60inch pitch prop. I have always
wondered how much faster it would be if it had a constant speed prop.

FWIW -- Maule makes the MX-7-180 with both fixed pitch and CS props. They get 10 mph
faster cruise, 280 fpm better climb, and a 250' reduction in takeoff distance with
the CS prop.

George Patterson
If a man gets into a fight 3,000 miles away from home, he *had* to have
been looking for it.