Originally Posted by
de727ups
I'd bet you that if you look at an airplane with a MP gage, it has a prop control knob between the throttle and the mixture (unless it's a Baron...hehe). MP gage's give an engine power output indication on airplanes with controllable pitch props.
I never flew a Piper Cherokee but I would assume it does not have controllable pitch props. When I was cecking out the cherokee to rent, it had a MAP gage.
Of course I can ask the club owner for the answer, but I would like to get some info here.