Wednesday, May 20, 2026

This flag means what?

 


12 comments:

  1. The 1972 International Regulations for Preventing Collisions at Sea and the United States Inland Navigation Rules provide for an elaborate series of day-shapes and lights to be displayed by large vessels whose maneuverability is restricted by the conduct of underwater operations, such as cable-laying, dredging, or conducting diving operations. Smaller vessels that are not able to hoist the complex signals used by large ships are instead required to display a rigid version of the International Code of Signals flag for the letter "A," known as ALFA, at least one meter high if diving operations restrict their ability to maneuver. Not all boats from which divers are swimming are necessarily so restricted. Generally, only vessels to which the divers are physically connected by communication lines, air hoses, or the like are affected by this requirement. It does not apply to most instances of sport diving, where the divers are swimming free of the vessel. As recent Coast Guard Notices to Mariners emphasize: "The ALFA flag is a navigational signal intended to protect the vessel from collision."

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  2. Great example of a long paragraph of (probably) correct data. But - it did not answer the question.
    Do you work for any level of the govenment?

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  3. All I can find is that this flag represents the letter "A".

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  4. In Samuel L Jackson parlance.... "Back the F#*k off MFer"

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  5. "I have a diver down; keep well clear at slow speed".

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  6. That’s a funny flag, lets race our boat over at high speed and see what’s going on…

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  7. https://www.amazon.com/International-Polyester-Snorkeling-Underwater-Activities/dp/B0B947WZP9
    International Diver Flag, Blue and White Polyester Alpha Flag Universal Dive Flag 27.6x23.6 Inch Diving Flag Boat Flag Marker , Snorkeling, Diving, Underwater Activities

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  8. Shrimp's on the barbie.

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  9. Depressed Caucasians on board-

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  10. If you can see it------the wind's blowin'

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