Laughing Potato

Due to the design of a new boat I am making, it would be much better for me to mount some stock 540's under the waters surface. These will be fully submurged during running.

Will this cause any damage to the motors long term? As far as I am aware, electric motors are more than happy running under water and will be cooled well too

Any advice please,

Colin

LtDoc

Colin,
It depends on how 'clean' the water is. If it's water you would drink, the motors would probably work just fine. If your sailing waters are anything like around here (I'm NOT drinking it!) then things get a bit more 'iffy'. It also depends on how the motor is made. Some full sized boats use submerged 'wet' motors, but they are specially constructed. Most model sized motors aren't, so they're more susceptible to minerals/salts/'stuff' disolved in the water they're in. Happen to have an ohm meter handy? Check the resistance of your sailing waters. If it isn't in the Meg-ohm range, I think I'd count on there probably being some problems...
- 'Doc

Ron Olson

My Feedback: (1)

I know that you can break in motor brushes quickly by dunking them in a glass of water for a few seconds but long term? Being submerged would slow the motor way down from the turbulence alone. Very high maintenance from having to constantly clean the motor. They wouldn't be too streamlined either. I don't see an advantage at all of doing this. I'd go back to the drawing board.

Laughing Potato

Thanks for the replys,

Like you said, back to the drawing board then[] I will have to see what my LHS has in stock, with regards to prop shafts.


Thanks for the advise