[ozwarrior]

QUOTE (Mike Parkes @ 26 Nov 2007, 07:43) <{POST_SNAPBACK}>Bachmann use 3-pole motors

Which begs the question:

All other things being equal will a 5-pole outlast a 3-pole?

 

[ozwarrior]

QUOTE (dbclass50 @ 26 Nov 2007, 19:17) <{POST_SNAPBACK}>I would agree there - a good 3-pole is probably better than a poor five pole.

So why over the last 10-15 years has there been a move to 5-pole?