To swing or steer off course, as when running with a quartering sea.
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GYBE
To swing a sail from one side to another.
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CATENARY
The curve formed by a uniform cable supported only at its ends. Navigators are concerned with the catenary of overhead cables which determines clearance underneath, and the catenary of the anchor rode, which in part determines holding power and swing circle.
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CLEAR BERTH
A berth in which a vessel may swing at anchor without striking or fouling another vessel or an obstruction
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FOUL BERTH
A berth in which a vessel cannot swing to her anchor or moorings without fouling another vessel or striking an obstruction. See also FOUL GROUND, CLEAR BERTH.
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RUDDER STOP
A stout bracket to limit the swing of the rudder to the maximum 37 degree starboard or port
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WIND SOCK
A tapered fabric sleeve mounted so as to catch and swing with the wind, thus indicating the wind direction.
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BACK
To force a sail against the wind when manoeuvring (a jib is backed' when you want to force the bow to fall off); swing away from the wind.
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IN IRONS
Losing momentum while tacking a vessel through the eye of the wind, the vessel can be temporarily immobilised with the sails stalled. She will have to fall off the wind, get the sails full again and with speed on once more attempt to use her forward momentum to swing through the wind.
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SWINGING STRAPS
Foot straps in a sailing dinghy to allow the crew to swing out over the side of the boat.
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SINGLE POINT MOORING
(SPM) - A mooring system to which a tank vessel moors to a single point only normally at the bow. This system allows the vessel to swing in a 360 axis depending on wind or current direction without disconnecting or interrupting the cargo operations.
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