[Boatanchors] PE-73 Dyno starting solenoid running hot

[mac]

Doubt that overheating was a problem in the bombers at 30,000 ft. but  
yes, running at ground level with the end bells off definitely keeps  
the -73 cooler.

DD

***************

On Jul 11, 2011, at 4:11 AM, David Stinson wrote:

> One tip on the PE-73 (indeed; any dynamotor):
> When you first fire it up, leave the end bells off for a
> few hours of operation.  Over the years, moisture gets into
> the windings and core.  The heat of operation will drive it out
> Mike Hanz mentioned this to me many years ago.
> I opened the end bells of my PE-73 after its first couple
> of hours of operation and poured about a teaspoon of
> water out!  I was amazed.
> There's also a 1942 or 43 tech order around here somewhere
> that instructs radio operators to take one of the end bells off
> the PE-73 to provide better cooling on flights over 30 minutes.
> This isn't the problem with your over-hot solenoid, of course.
> Just an aside.
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