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engine hp Vs prop D

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A

aboazeaz

Well-Known Member
Joined
Apr 15, 2014
Messages
94
Location
Sana'a
Hi guys :
Assuming my engine at some rpm gives me about 100 HP ,and my prop Effeciency about 80 % ,and the PSRU Effeciency about 80% that means I end up with only 64 HP.
Should I make my calculation based on 100 or 64 hp engine ?
 
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