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Mooring as deployed in Fram Strait with top buoy, a CTD-sensor, two rotor current meters, acoustic release and train wheels as anchor. A mooring in oceanography is a collection of devices connected to a wire and anchored on the sea floor. It is the Eulerian way of measuring ocean currents, since a mooring is stationary at a fixed location.
Bollard pull is a conventional measure of the pulling (or towing) power of a watercraft.It is defined as the force (usually in tonnes-force or kilonewtons (kN)) exerted by a vessel under full power, on a shore-mounted bollard through a tow-line, commonly measured in a practical test (but sometimes simulated) under test conditions that include calm water, no tide, level trim, and sufficient ...
Oar a wooden pole enlarged on one end to resist the water when pulled. Painter: a short line at the bow of a small boat for tying it off. Parrot beak: a spring-loaded stainless steel fitting on the end of a spinnaker pole attaching it to the sail. Pintle: the male half of a pintle-and-gudgeon pivot or hinge.
A conical sea anchor with tripline (from an illustration in The Sailors Handbook by Halsey C. Herreshoff). An early wooden drogue. A sea anchor (also known as a parachute anchor, drift anchor, drift sock, para-anchor or boat brake) is a device that is streamed from a boat in heavy weather. Its purpose is to stabilize the vessel and to limit ...
The elements of anchoring gear include the anchor, the cable (also called a rode), the method of attaching the two together, the method of attaching the cable to the ship, charts, and a method of learning the depth of the water. Vessels may carry a number of anchors: bower anchors are the main anchors used by a vessel and normally carried at ...
Punting on the River Cam in Cambridge, England. A punt is a flat-bottomed boat with a square-cut bow, designed for use in small rivers and shallow water. Punting is boating in a punt; the punter propels the punt by pushing against the river bed with a pole.