3 or 4 blade props?
Thanks a lot Tony.
I will see what else I can find on the subject and post it.
CF
Tony Thomas wrote:
Only formula I am aware of is the speed formula.
rpm x pitch
------------------ = theoritical speed x efficiency = actual speed
1056 x gear ratio
1056 is a conversion factor to get from inches of pitch and rev per minute
into miles per hour.
gear ratio will be 1.5 or 1.86 or 2.0 depending on your motor usually.
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