Submerged Motor

[NX687]

We all know brushed motors in fuel tanks last 1000 's of hours

Why then with my brushed motor in my Radio Sub is the brush life about 5 minutes ,

Chlorinated pool water ,,,

low power

Suggestions appreciated

 

[motorspert]

Search for submersible motors, some are designed as 'wet type' and run in water

http://m.youtube.com/watch?v=2mVteXOBo0Y

[pre][/pre]

 

[NX687]

I got a weekend running out of a normal model plane Brushless, motor , bronze bushes substituted for ballraces

Flushed in tap water , so far OK , running at approx 1 metre depth , thats about the limit of my 36 Megahertz radio reception