Technical, Techniques, Hints, and Tips > BRUSHLESS Motors and Speed Controllers
Which motors
Lifeboat 70-001:
need some help please, got a 6 foot boat which is a displacement hull so not a speed boat, twin props and thinking of putting in two 500 kv outrunners but not sure what Amp Esc to use and would like to use the gel cell battery's because they are part of the ballast. Maybe this isn't the right set up and if not then what size brushless to use. Thanks.
T33cno:
Firstly in case you don't know? 500kv = 500 RPM per volt so 12 volts would be 6000rpm.
I have absolutely no idea how these work in terms of Torque.
The motor should state its maximum amps in the spec and you want an ESC at least 10% higher but I think most go 20%
Hope that helps a little.
EDIT
Re batteries, I don't think Gel or PB are good at delivering higher currents so need to be looking at Nicad or LiPo
Dave Cook:
Lipo all the way
Dave :-)) :-)) :-)) :-))
kinmel:
Can you give us a link to motors please, we need more information.
chas:
Also a better idea of the hull shape, a long thin warship hull is easier to move than a displacement cabin cruiser.
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