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The slip angle and RPM is what determines most the amount of power the motor will need.
Generally they will use more power at higher RPM just to over come windage.
You don't decide the operating RPM of the motor. The manufacturer does that.
For example DC motors need to turn at 5,000 to 6,000 rpm to develop enough power to drive with out drawing so many amps they burn up, which is exactly what will happen if you run the motor too slowly.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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