alpinelakespilot2000
Well Known Member
% power, prop pitch, rpm and temps relationship
Hypothetical question regarding fixed pitch props:
Assuming two identical engines are both producing 75% power but one has an underpitched prop and the other has an overpitched prop, would engine temperatures (CHTs primarily) be the same on both engines? Stated differently, suppose it it takes 2700 rpm for one engine to produce 75% power but only 2500 rpm for another engine to produce 75% power (because of differences in prop pitch), assuming all else equal, would you expect the higher rpm engine to generate higher CHTs due to faster moving parts or should temps be the same on both engines since both are producing the same power?
Thanks.
Hypothetical question regarding fixed pitch props:
Assuming two identical engines are both producing 75% power but one has an underpitched prop and the other has an overpitched prop, would engine temperatures (CHTs primarily) be the same on both engines? Stated differently, suppose it it takes 2700 rpm for one engine to produce 75% power but only 2500 rpm for another engine to produce 75% power (because of differences in prop pitch), assuming all else equal, would you expect the higher rpm engine to generate higher CHTs due to faster moving parts or should temps be the same on both engines since both are producing the same power?
Thanks.
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