Way OT: It's an age thing, maybe

[Ken G Kopp]

It all might depend on the age of the observer ...

Much like the aircraft restoration mechanic at the Pima
Air Museum when I asked about a manual for an electric
prop-pitch motor.  He was adamant that there was -never-
such a thing, and wasn't to be convinced until I walked
him over to a Constellation and showed him the power
conduit going into the shafts of the props. (;)

BTW, the first widely-used AM aircraft frequency was
3105 KHz.

73!

K0PP
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