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02-06-2008 | 07:15 AM

#7

DarZeelon

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From: Rosh-HaAyin, ISRAEL

RE: ENYA .50 ringed

Quote:

ORIGINAL: Harry Lagman

An APC 11 x 6 provides about the same load as a 12.25 x 3.75W.

Grant,

The 12.25x3.75W prop is much heavier.

To spin it at 13K, 1.54 HP are required to overcome its high prop constant of 1.5.

To do the same with the APC 11x6, only 1.22 HP are required.

A typical sport engine would spin the 11" prop about 1,100-1,300 RPM faster.

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