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Hydroplane prop help

f_inscreenname

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I?m using a prop (OJ 13X15L) on my hydroplane. Thinking I need something that?s made to run on the surface, a chopper or a one of those 2 blade props. Just starting to look but thought I should ask. Are the pitch numbers the same? Or in other words, if I have a 15P now should I be looking for a 15P chopper? I figure with the two blade pitch would have to moved up a bit?
 

harlanorrin

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We need to what type/brand/model of hydroplane you have. We need pictures. Is it a prop rider or a tail drager? Is it a ski boat, drag race, circle racer, or a lake player? Is it z-drive, v-drive, or direct drive.

HARLAN ORRIN
 

f_inscreenname

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1959 Biesemeyer Wrangler, 4pt hydro.
But to keep it simple lets just think of it as a 3pt.

1c4b3fe0.jpg
 

harlanorrin

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In the late '50s your hull type was running over 100 MPH. They did not prop ride very high. They were a 4 point riding boat. Get as many props as you can find and go out for a test DAY. Do not worry about moving the engine or changing the shaaft angle or strut location. The boat was designed to be a fast 1959 toy, with 1959 horsepower.

HARLAN ORRIN
 
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