motor recommendation
 

hi,

i have a small boat 15X40cm which was originally a toy rc boat.
the electronics don't work anymore,so i'm thinking to convert it to a real rc boat.
i already have everything i need from other projects, the only thing is,i don't know what motor to choose.

here are some motors i have:

a 370 size motor,with 5:1 gearbox,
and a 180 size heli motor,
both brushed

batteries will be 900mah 3S

what would be a good overall motor for it?
it don't has to be a speed monster.

RE: motor recommendation
 

Use the 370 and get rid of the gear box, you have a pic of the hull? For boats this size you can go 3000-3500rpm brushless with about 20 amps and that should put you close to the hulls limit. Or at least generally, especially running on 3s lipo.

RE: motor recommendation
 

thanks for your reply,

here is a pic from the boat ,
it is not the actual one but very similar.

btw,
everything is made of plastic.

RE: motor recommendation
 

if you want a bit more performance, get the graupner 480bb Race.
reasonably priced...great performance!

It depends what speed control you're using - the motors you have are brushed, correct?
going brushless may be a little more expensive, but I'd only go brushless if you want "speed monster".