In article ,
says...
Your description of access to military surplus leads to the question re.
30HP 3PH motor you wish to incorporate into a rotary phase converter system.
Is the motor a commercial 60 HZ machine or is it a military surplus 400 Hz
machine?

Bob Swinney

Hi Bob:
Most of the motors I have access to are single and three phase 60Hz
commercial, right now there 100,s of them, the amount and type change
weekly depending on how many are sold or scraped during the week.
Thanks:
Bill K