Marine signal flag: Letter "P" (Papa) Deck Officer care and maintenance of hatch

care and maintenance of hatch covers are critical to a ship’s safety and its ability to carry cargo without damage

Jazireh-ye Tonb-e Bozorg to Jazireh-ye Forur is a standard nautical chart

British Admiralty Nautical Chart 4786: Port de Quebec is a standard nautical chart

Maritime signs are critical in keeping a vessel's crew safe of any possible hazards

unchanged existing national flags in the world

Marine signal flag: Letter "P" (Papa) Deck Officer care and maintenance of hatchInternational maritime signal message: "All personnel return to ship; about to sail" Marine signal flags are international signals used by ships at sea to spell out short messages, or more commonly, used individually or in combination they have special meanings.