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-   -   OS40 LA (https://www.rcuniverse.com/forum/beginners-85/8821279-os40-la.html)

HighPlains 06-28-2009 09:36 AM

RE: OS40 LA
 
Try a 10-5 prop to let the engine turn up to a slightly higher rpm range. This will put the engine output higher up the rpm/power curve. Airplane speed is related to the cube root of power, so to go faster you have to operate the engine at an rpm point where it makes more.


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