With hundreds, if not thousands of brushless motors out there, it’s sometimes frustrating to determine which motor is the right choice in case your airplane΄s original one needs to be replaced.

       It is a fairly easy task when the original motor is still in production by the manufacturer, but the search becomes time consuming, when is no longer available and you have to replaced it with a similar one or perhaps with a more powerful, but still within the limits of the available space in your airplane΄s cowl.  

      Several dimensions of the motor as below, can be a very helpful guide to the task.

SHAFT DIAMETER A (mm)

LENGTH B (mm)

DIAMETER C (mm)

CAN LENGTH D (mm)

TOTAL LENGTH E (mm)

We hope this is helpful!