srgalahad
Charter Member 2022
WOW! Great find there Rob!
EDIT: I read other references to the "Warning Light" but do not know what it was used for. Can anyone explain?
I've never seen it referenced that way but at a reasonable guess substitute "daytime running light". By day a light source is often more visible than a reflective object and at night would be a clear indication that the dim (and remember, flashing in some cases) red/green lights ahead were not stars but an approaching airplane. If conveniently controlled in the cockpit it could also be used to alert or even identify a flight to persons on the ground.
<looking down at the t-shirt I'm wearing that says: "The light at the end of the tunnel........... may be an approaching train">