Re: (ET) E20 motor at 48V

[SteveS <stevesgroups verizon net>]

I used to work summers in a shipyard. One time we had a freighter in, 
the "Marine Electric". It had one of those motors and it was strange how 
narrow it was, but huge diameter.  As I recall it was: steam turbine to 
generator to electric motor. Seems inefficient, but evidently, gearing 
down a turbine is not so efficient and very expensive. The motor drove 
the shaft directly.

- SteveS

Konstanty, Walter (GE Indust, ConsInd) wrote:
>      High speed motors are stacked out for low inertia and high speed.
> The Disney Cruise Ships are powered by 2-60,000HP ac motors that are 20'
> high but only 3' long.....low speed, high torque for propeller shafts.
>  ...Walt
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