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72" 4HP RC boat with 1:3 gear ratio

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Uploaded by on May 3, 2009

1:3 gear ratio with smaller propeller. Doesn't seem to get full rpm...

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Autos & Vehicles

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  • make some trim tabs

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All Comments (7)

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  • Maybe a Prather 270???

  • watch out i heard theres killer whites in that lake

  • i bet it gets really hot in there

  • Great job! i just finished building my boat, however i used a pocket bike engine. little 49cc and it runs quite well. Cant wait to try a 4 stroke.

  • You can try with 1:2 or put your cg a little bit forward.

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