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one Main switch or 2 spst switches? Alt. field circuit brea

 
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sarg314(at)comcast.net
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PostPosted: Sat Jun 10, 2006 12:42 pm    Post subject: one Main switch or 2 spst switches? Alt. field circuit brea Reply with quote

Bob:
Your diagrams all show a 2-10 Main switch which is apparently hooked
up to give us OFF, Battery Only, and Battery+Alt field. I can see the
merits of this. But I happen to have a number of high quality, sealed,
mil spec. Cutler-Hammer SPST switches that I'm itching to use. Is there
any reason not to use one for the battery and one for the alt. field
coil instead of the 2-10?

This combination would allow having the alt. field ON while the battery
is OFF, which is likely to make the alternator unhappy, but is it
dangerous? I'm thinking that would come under the "don't do that"
heading, like so many other things about flying.

Also, you mention in chapter 10 of your book that you like to have a
circuit breaker on the alt. field rather than a fuse because of over
voltage situations, but you don't explain why it's actually handy to be
able to reset this one circuit.

Thanks,

--
Tom S.


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