[Milsurplus] 400 cycle 3 phase and WW2

[WA5CAB at cs.com]

Which engine did you normally start first (the one with no alternator or 
one of the other three)?

In a message dated 1/12/2011 8:30:16 PM Central Standard Time, 
smithab11 at comcast.net writes: 
> The earliest aircraft that I can remember  with 
> main bus 400 cycle AC power was the KC-135(707), 
> First manufactured in 1955?
> I used to spend many moments  after starting 
> engines trying to get all three alternators on 
> line with those flashing lights blinking at 
>     -       you had to get the timing just right.
> Now come to think of it, why only three (3) ? 
> Wonder why not 4 alternators ?   - -  one for each 
> engine.
> We had a lot of 400 cycle noise in everything.
> 
> 73
> 
> breck k4che
> 

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