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The spinnaker pole is rigged to run from the base of the mast, [1] where there is a special fitting for attaching one end of the pole, out to windward over the side of the boat. There, one of the control lines of whichever sail it is to be used with is run through a fitting on the other end of the spinnaker pole. This allows for more precise ...
A jiggerpole (or jigger pole) is a long fishing pole that is used with a short and heavy line, usually a foot (0.3 m) or less of 50 lbf (220 N) test or heavier. Then a large lure or bait is attached and manually worked around the shoreline and cover. In deep cover, the lure or bait can be presented by placing the tip of the fishing pole into ...
Farther aft than the beam; a relative bearing of greater than 90 degrees from the bow; e.g. "two points abaft the beam, starboard side" would describe "an object lying 22.5 degrees toward the rear of the ship, as measured clockwise from a perpendicular line from the right side, center, of the ship, toward the horizon". [4] abandon ship
The bowsprit’s purpose is to create anchor points for the sails that extend beyond the vessel’s bow, increasing the size of sail that may be held taut. The word bowsprit is thought to originate from the Middle Low German word bōchsprēt – bōch meaning "bow" and sprēt meaning "pole". [1]
Guy (red arrow), controlling the spinnaker pole. The guys supporting a sailboat mast are called "standing rigging" and in modern boats are stainless steel wire rope. Guys are rigged to the bow and stern, usually as a single guy. Lateral guys attach to "chain plates" port and starboard attached to the hull.
Figure 1: Method of the operation of a long baseline (LBL) acoustic positioning system. A long baseline (LBL) acoustic positioning system [1] is one of three broad classes of underwater acoustic positioning systems that are used to track underwater vehicles and divers.
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USBL (ultra-short baseline, also known as SSBL for super short base line) is a method of underwater acoustic positioning. A USBL system consists of a transceiver, which is mounted on a pole under a ship, and a transponder or responder on the seafloor, on a towfish, or on an ROV. A computer, or "topside unit", is used to calculate a position ...