Constant Speed Propeller and relation to manifold pressure setting.
Asked by: Steve 3580 views Aircraft Systems, Commercial Pilot, Flight Instructor, General Aviation
Hello everyone,
I am currently doing my CFIA course in Arrow and let us say when we set up our cruise power at 2400RPM for good, and I noticed something strange when playing with throttle.
RPM was constant through out various manifold pressure setting(throttle), and when I decrease the throttle, the airspeed started to bleed off. Conversely with throttle pushed forward, airspeed picks up.
I understand that constant speed prop does its job maintaining constant RPM but my question is why airspeed decreases and increases at different throttle setting?
Is this because there is a change in prop pitch?
Steve.
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