eranomo

Hi everyone.
I am building 2 Airbouts (Airplane setup on top of a flat bottom/Catamaran boat hull).Since there are no inrunner motors available that can efficiently handle an airplane prop (14x9) I had to go for outrunner motor.
I am browsing for compatible ESC but since Airplane ESCs has no reverse I have to look for waterproofed car ESCs or boat ESCs, Some Car ESCs comes waterproofed and they are cheaper than boat ESCs, reliable and doesn’t need water cooling so I chose to go with Car ESC (installed on top of the hull so air & water can flow in).Other than cooling features – Is there any problem connecting Car ESC to an outrunner motor?I read somewhere that there is a problem related to the number of poles inside the motor but I didn’t find anywhere a good explanation about it or the consequences of doing so, does anyone have a clue if this kind of setup is problematic?
Thanks in advance…Eran

vinmansbrew

Ok, I had to look this up and so far, it seems that # of poles doesn't matter to an esc. What happens is the increase in poles is used to make more torque without the use of a gearbox, but the motor turns slower. In order to compensate for the lower rpm, you have to increase voltage to the motor. I think this might be the issue with some esc. You would want an esc capable of higher voltages of a 3s or 4s.

rcuniverse /forum/brushed-brushless-motors-speed-controls-gear-drives-123/1640041-poles-motor.html

This was about 5 minutes of looking before work. But I've never known poles to matter really.