Kevin wrote:
The Natural Philosopher wrote:
Chris J Dixon wrote:
Kevin wrote:

you have not done much research, most model boat motors are 5 pole
along with trains
http://www.zscale.org/articles/fivepole.html

In the model world, maybe, but in the real railway, DC Traction
Motors generally have an even number of poles, most commonly 4 or
6.

Chris
Its general to have an even number of fields or fixed magnet poles,
and windings as a multiple of three.

So it depends what we re talking about.

a 5 pole motor has 2 magnet poles and 5 windings & 2 brushes so bang
goes 3 phase theory

Well then its a 5 phase AC motor ;-)

Unusual, but possible with a commutator.