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TermDefinition
- OnshoreWind blowing towards the land or “not at sea”. Read more
- Phonetic Alphabet Oscar Phonetic alphabet letter O. Meaning: The Oscar flag signals "Man overboard." Often seen on the top of a Danbouy MOB recovery(...) Read more
- OuthaulA line with which the mainsail is hauled out along the boom Read more
- OverfallsTurbulent waters where is a sudden change in depth or where two tidal streams meet Read more
- Overhand loop A loop that crosses on top of the standing part of a rope when tying a knot. Read more
- PainterThe line at the bow of a dinghy Read more
- Pan PanThe internationally recognised radio telephone urgency signal which has priority over all calls except Mayday Read more
- Phonetic Alphabet Papa Phonetic alphabet letter P. Departure Signal: When a vessel displays the Papa flag, it signals to all personnel ashore that they should(...) Read more
- Parallel RulesNavigational instrument used in conjunction with the compass rose on the chart to transfer bearings and courses to plot a vessel’s position Read more
- Passage A passage describes a vessel's entire journey from start to end. Every passage should have a passage plan outlining the vessel's intentions and(...) Read more
- Pay OffLet the sails fill and sail away on a new tack. Read more
- Pay OutTo let out a line or rope gradually Read more
- PLBA device worn by crew to enable the transmission of their position in the event they go overboard Read more
- Personal Locator BeaconA device worn by crew to enable the transmission of their position in the event they go overboard Read more
- Phonetic Alphabet The Phonetic Alphabet, also known as the International Radiotelephony Spelling Alphabet or NATO phonetic alphabet, is a standardised set of(...) Read more
- PileA stout timber or metal post driven vertically into the a river or seabed Read more
- PilotAn expert in local waters who assists vessels entering or leaving harbour; An official publication posting details of, for example, local(...) Read more
- Pilotage Pilotage is the use of fixed visual references by sight or radar to safely navigate to a destination, usually a port or harbour, with the help(...) Read more
- PinchTo sail too close to the wind so that the sails lose driving power Read more
- PitchThe up and down motion of the bow and stern of a vessel Read more