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RaceMechaniX

Well-Known Member
Joined
Apr 27, 2007
Messages
2,605
Mike what KV motor are you running? Generally sport 21 props tend to work well. X440/3, GR38x63, ABC 1914/1915. If you have a lower kv motor, go up in size from the ones recommended. I would stick with low lift props.
 

RaceMechaniX

Well-Known Member
Joined
Apr 27, 2007
Messages
2,605
Try any of those props mentioned as a good starting point. You can add pitch or diameter based on motor temps and attitude of the boat. The X440/3 was the smoothest, most consistent prop for my P-Ltd Phil Thomas sport boat. Not the fastest, but handled nicely.
 

J.J. Horvath

Member
Joined
May 29, 2019
Messages
13
You also shouldn’t need 7200mah for spec/limited boat. 5000-6000mah should be enough, extra is just added weight.

Here is mine with 2000kv, 5000mah, and x440/3

 

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