Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

prop efficiency

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Old 04-09-2007, 10:22 PM
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1fasthitman
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Default prop efficiency

Does anyone know at what rpm a prop loses significant efficiency?
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Old 04-09-2007, 11:05 PM
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Default RE: prop efficiency

0 RPM.

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Old 04-09-2007, 11:12 PM
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Mike Connor
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Default RE: prop efficiency


ORIGINAL: 1fasthitman

Does anyone know at what rpm a prop loses significant efficiency?
Usually at critical Mach. Depending on the prop, that could be as low as .74 Mach.
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Old 04-09-2007, 11:50 PM
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Default RE: prop efficiency

Here's another example of lost efficiency Who could this be?
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