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Old 01-02-2003 | 07:17 AM
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dz06
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From: San jose, CA
Default Prop Selection?

Assuming starting prop is one recommended by engine manufacturer is there a table or simple method to decide on alternate prop selections?

Something that would explain or recommend alternate prop selections based on engine load and rpm.

I.E. If you use a 11/7 prop then could you select a 12/6 as a larger prop with about the same engine load? Could you use a 13/6 if you had ground clearance and get similar results?

Is their a formula to equate diameter and pitch to performance?
Something like size times pitch. I.E. 11/7 (77) is close to 10/8 (80). 11/7 (77) is very close to 13/6 (78).