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[TCML] RSG Disk Loading?

RSG Gurus,

What is the source of "disk loading"?  How can an RSG rotor, which appears to be no more than a flywheel, load down a motor?  Mass alone isn't a load once the inertia of the disk is overcome and the motor spins up to its rated RPM.  All that leaves is air drag.  Do the flying electrodes account for significant air drag?  Does the surface of the rotor itself move enough air to load the motor?  My education in classical physics ended with high school.  I'm mostly self-taught in electric motors.  What am I missing?

Cheers,

Greg
http://myweb.cableone.net/grcarhunter


      
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