Well, I was recently discharged from the US Navy. I had to set a watch bill to my Division to ensure "Darken Ship" was set in all my spaces that all "Circle X-Ray" doors were secured and lights switched from white to red. I also had to ensure that the "Darken Ship" log was signed under my Division's name for the OOD (Officer of the Deck).
Yes, your night vision adjustment holds merit. I'm not denying that. But that's not the reason for switching to a red light at sunset for surface ships. The true purpose of "Darken Ship" was to reduce the emission of bright lights that radiated from the ship's weather decks.
I do admit, the Submariners (Bubbleheads) and their "Rig for Red" is different in most aspects.
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Give me an Army of West Point Graduates, and I'll win a battle... give me a handful of Texas Aggies, and I'll win a war!!
George S. Patton (1885 - 1945)
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