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The DIY Mermaid was designed as an entry for the sailboat-building competition, organised by Stanley Tools in 1961, and the first DIY Mermaid was built by the designer on the living room floor. The Do-it-yourself magazine [ 2 ] started serialising the construction drawings and instructions in June 1963, whereby the DIY Mermaid could be built ...
A Navy buddy diver team checking their gauges together. Buddy diving is the use of the buddy system by scuba divers and freedivers.It is a set of safety procedures intended to improve the chances of avoiding or surviving accidents in or under water by having divers dive in a group of two or sometimes three.
The diver must be able to safely reach a reliable alternative source of breathing gas at all times during the planned dive. Plans for technical contingencies may include arrangements for alternative equipment, spares, alternative boat etc. The level of contingency planning will depend on the project, and the importance of the task.
A gaff cutter, Kleine Freiheit, with a genoa jib set USCGC Legare, an example of a US Coast Guard cutter A cutter is any of various types of watercraft.The term can refer to the rig (sail plan) of a sailing vessel (but with regional differences in definition), to a governmental enforcement agency vessel (such as a coast guard or border force cutter), to a type of ship's boat which can be used ...
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 boat moves ...
A liveaboard dive boat on the Similan Islands, Thailand Deck of a dive boat for about 35 divers, with equipment and whiteboard for dive planning. A dive boat is a boat that recreational divers or professional scuba divers use to reach a dive site which they could not conveniently reach by swimming from the shore. Dive boats may be propelled by ...
Dive boats. Day boats, which may be rigid-hulled inflatable boats; Live-aboard dive boat; Dynamically positioned vessels; Echo sounder, side-scan sonar and multi-beam sonar for location, depth measurement, and profiling of dive sites; GPS receiver - for locating dive sites; Surface-supplied diving breathing gas supply system, including:
Cave diving guide line reel. A distance line, penetration line, cave line, wreck line or guide line is an item of diving equipment used by scuba divers as a means of returning to a safe starting point in conditions of low visibility, water currents or where pilotage is difficult.