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Chesapeake 1000 (formerly Sun 800) is a heavy lift sheerleg crane ship, owned by Donjon Marine Co., capable of lifting 1,000 short tons (890 long tons; 910 t). [1] [2] It is one of the largest boomable stiff-leg-derrick barges on the eastern seaboard of the United States.
Sail plan of a sloop. Each rig may be described with a sail plan—a drawing of a vessel, viewed from the side, depicting its sails, the spars that carry them and some of the rigging that supports the rig. [4] By extension, "sail plan" describes the arrangement of sails on a vessel.
1600 ton maximum lift capacity sheerleg Taklift 7 of Smit International. Fixed shear legs are most commonly found on floating cranes known as floating sheerlegs.These have heavy A-frame booms and vary in lifting capacity between 50 and 4,000 tons, and are used principally in shipbuilding, other large scale fabrication, cargo management, and salvage operations.
A block and tackle [1] [2] or only tackle [3] is a system of two or more pulleys with a rope or cable threaded between them, usually used to lift heavy loads.. The pulleys are assembled to form blocks and then blocks are paired so that one is fixed and one moves with the load.
Rigging of an asymmetrical scaffolding piece: the lifting beam is blue, the load is attached to the beam using grey slings. The lifting beam (also known as traverse, spreader beam) is a steel beam that is attached to the hook of the crane in order to spread the slings from one end of an elongated load (like a wall panel) to another.
Rigging comes from rig, to set up or prepare. Rigging is the equipment such as wire rope, turnbuckles, clevis, jacks used with cranes and other lifting equipment [1] in material handling and structure relocation. Rigging systems commonly include shackles, master links and slings, and lifting bags in underwater lifting.