[ARC5] Signal Light used on aircraft ?

[Hubert Miller]

This is a Navy signal light. It operates off 110 AC via a transformer in the storage case,
or a 6 volt external battery. The bulb is rather low power, spec 6 volt 1 amp. So I'm wondering
if this type was used only ship or shoreside only, or if such was used on aircraft. Or did aircraft
use a light gun that somehow plugged into the 24 volt system?

I have wondered in the past why an aircraft might use a signal light to communicate with ships.
Well, a recent reading told me: to maintain radio silence.
thanks-
Hue Miller

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