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A diver getting ready to dive in front of an alpha flag. As a code signal the International maritime signal flag Alpha (or "Alfa", signifying the letter "A") has the meaning of "I have a diver down; keep well clear at slow speed", [1] used to indicate that the vessel has limited maneuverability, and the presence of a diver in the water around the boat.
An example is the Popham numeric code used at the Battle of Trafalgar. In yacht racing and dinghy racing, flags have other meanings; for example, the P flag is used as the "preparatory" flag to indicate an imminent start, and the S flag means "shortened course" (for more details see Race signals). Sailor prepares signal flags for operations at sea
The International Code of Signals (INTERCO) is an international system of signals and codes for use by vessels to communicate important messages regarding safety of navigation and related matters. Signals can be sent by flaghoist , signal lamp ("blinker"), flag semaphore , radiotelegraphy, and radiotelephony.
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More details have emerged following Megan Fox and Machine Gun Kelly's recent (alleged!) breakup. TMZ initially reported on the split, saying it went down during Thanksgiving weekend in Colorado ...
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Diver down flag which is flown to warn others that divers are underwater in the vicinity [32] Diver lifts, to conveniently transport a diver from the deck level into the water near the surface and back out in full equipment. [33] Diving air compressors and gas boosters to fill diving cylinders with high pressure air or other gasses.