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prop diameter of an Ultracruiser

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TejasNW

Member
Joined
Jan 14, 2018
Messages
21
Location
Houston Texas
Does anyone know off hand what the recommended prop diameter is for a Hummel Ultracruiser? I am trying to do some back of the envelope calculations for a 30 hp motor. I could wait for the plans but have not decided if I would take the plunge or not. If I could use the engine I have that would certainly sway my decision. Thank you.
 
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