Jason,
Good post and explanation about why we gear our motors. But in the lower part, you are calculating propeller slip, not propeller efficiency. There is a difference, propeller slip is easily measured and calculated. Propeller efficiency calculations are more complicated. I don't think that anyone in this group has been able to find a reasonable way to objectively determine their conversion's prop efficiency with accuracy and precision.
Fair winds,
Eric
Marina del Rey, CA
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Posted by: ewdysar@yahoo.com
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