<... switched reluctance integrated starter/alternator ...>
What might that be?  How might one work?  I've flown turbines with starter/generators, and they were an abomination. 
I've no idea what a starter/alternator would look like or how big/heavy it would be ... Jim S.

Fred Osborn wrote:

Sorry, I forgot to change the subject when I sent this before so most guys just passed
it by. FWIW.

>Richard Sohn wrote:

>We should not overlook the disadvantage of PM alternators. At higher operating speed,
>the not used output will have to be dissipated. This is the main reason why automotive
>alternators are regulated by the excitation system.

Another disadvantage of PM devices is the hystersis losses in the stator laminations.
At 6000 rpm continuous you could end up with a very warm stator. Actually, the ultimate
answer to all this will probably be a switched reluctance integrated starter/alternator.
Used with an EWP - no belts at all.

Fred Osborn

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