[ARC5] One use of light gun at airfield

[MARK DORNEY]

It’s also easier at night for an enemy aircraft with English speakers to mimic friendly aircraft approaching an airfield. Specific colored lights, and the use of specific CW signals upon approach along with IFF comms were added security measures. Screw up those signals, and standby to receive flak, and a very warm welcome if the aircraft manages to land without getting shot down first. 
      The signal lamp could also be used for comms if the radio(s) onboard the aircraft were out. 

Mark D. 
WW2RDO

“In matters of style, float with the current. In matters of Principle, stand like a rock. “.   -   Thomas Jefferson 

Sent from my iPhone

> On Jan 17, 2023, at 11:09 PM, Hubert Miller <Kargo_cult at msn.com> wrote:
> 
> Here is something that kind of puzzles me. Every long flight in any aircraft was provided with a list of frequencies of navigation aids
> and airfield frequencies. But here is a C-47 coming in to Panama Canal Zone field, and the pilot uses a light gun to signal. Was this 
> from some misguided fear of enemies listening? 
> -Hue Miller 
> <Use of signal light - cropped.jpg>
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