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Bromochlorodifluoromethane (BCF), also referred to by the code numbers Halon 1211 and Freon 12B1, is a haloalkane with the chemical formula C F 2 Cl Br. It is used for fire suppression, especially for expensive equipment or items that could be damaged by the residue from other types of extinguishers. [ 1 ]
Otter (fishing device) The otter is a fishing device constructed with two parts, an otter board and a fishing line. It is steered by pulling on the line then letting stack so the slide mechanism on the board operates to switch direction. It may be used from a boat or pulled from the shore. It is very difficult to retrieve from a boat once fish ...
General. A daggerboard is a removable vertical keel that is inserted through a "trunk" in the center of a vessel's hull, usually amidships. Daggerboards are usually found in small sailing craft such as day sailers, which are easily handled by a single person. Daggerboards are not usually ballasted but are locked in place by a clip or pin.
Bilgeboard. A bilgeboard is a lifting foil used in a sailboat, which resembles a cross between a centerboard and a leeboard. Bilgeboards are mounted between the centerline of the boat and the sides, and are almost always asymmetric foils mounted at an angle to maximize lateral lift while minimizing drag. They are most often found on racing scows.
Sailfish (sailboat) The Sailfish sailboat is a small, hollow body, board-boat style sailing dinghy. The design is a shallow draft, sit-upon hull carrying a lateen rigged sail mounted to an un- stayed mast. This style sailboat is sometimes referred to as a "wet boat" because, with its minimal freeboard, the sailor often gets splashed by spray as ...
The Sunfish is a personal-size, beach-launched sailing dinghy. It features a very flat, boardlike hull carrying an Oceanic lateen sail mounted to an un- stayed mast. Sunfish was developed by Alcort, Inc. and first appeared around 1952 as the "next generation" improvement on their original boat, the Sailfish. In contrast, the Sunfish has a wider ...
The U.S. Coast Guard and Kiribati police boarded two Chinese fishing boats during a patrol against illegal fishing in the Pacific Islands nation's vast exclusive economic zone this month but found ...