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What prop to use.

What prop to use.

Old 09-29-2010, 01:38 AM
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Default What prop to use.

Hey guys. Im realitively new to boats and have a new-ish 46" f-glass cat which I am in the process of installing a couple of Kb45 XL 1200kv brushless motors and 150 amp escs into. The main problem I have is how to work out what type, 2 blade or 3 blade and the correct pitch, size etc prop to use for this motor/esc combination. I am planning on getting a couple of 6s lipos to run the twin setup. Any help on this would be great. Cheers.
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Old 09-30-2010, 07:36 AM
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Originally Posted by Bumpy View Post
Hey guys. Im realitively new to boats and have a new-ish 46" f-glass cat which I am in the process of installing a couple of Kb45 XL 1200kv brushless motors and 150 amp escs into. The main problem I have is how to work out what type, 2 blade or 3 blade and the correct pitch, size etc prop to use for this motor/esc combination. I am planning on getting a couple of 6s lipos to run the twin setup. Any help on this would be great. Cheers.
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Old 10-01-2010, 04:46 PM
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Look at hw

Last edited by irgo; 10-01-2010 at 05:10 PM.
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Old 10-01-2010, 04:52 PM
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How to get propeler it self theright way?
Width,height,twist/angle,pitch?
Because i get same propeler twist,angle, with diffrent diameter/length
and width, that cause the same thrust effect (inefficient) for 540 brushed.
Why we dont get diffrent torque when having diffrent propeller blade diameter?
Is it because it has same twist/pitch?

We need help here
540 brushed 21t
direct drive
6 cell sub-c nimh/2s lith
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