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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 ...
The reference load used in the design and testing of the towing winch is twice the static bollard pull. Even if AHTS-vessels are customized for anchor-handling and towing, they can also undertake, for example, ROV (remotely operated underwater vehicle) services, safety/rescue services, and supply duties between mainland and offshore installations.
Don Inda Class - 2 sister ETV's based on Ulstein's UT 722 L design (bollard pull of 228 t.) Luz de Mar Class - 2 sister ETV's (bollard pull of 128 t.) Alonso de Chaves - (bollard pull of 105 t.) Punta Salinas - (bollard pull of 97 t.) Punta Mayor - (bollard pull of 81 t.) María de Maeztu Class - 7 sister ETV's (bollard pull of 60 t.)
A tugboat is typically rated by its engine's power output and its overall bollard pull. The largest commercial harbour tugboats in the 2000s–2010s, used for towing container ships or similar, had around 60 to 65 short tons-force (530–580 kN) of bollard pull, which is described as 15 short tons-force (130 kN) above "normal" tugboats. [5] [6]
Aiviq is an American icebreaking anchor handling tug supply vessel (AHTS) built in 2012 to support oil exploration and drilling in the Chukchi Sea off Alaska.The vessel's primary task was towing and laying anchors for drilling rigs, and oil spill response.
One of the missions of a fleet tug was to tow damaged warships back to port. The ships' aft deck was equipped with a SMATCO 66 DTS-200 towing winch for service as a towboat. [7] The towing system could accommodate either wire rope or synthetic-fiber hawsers and produce as much as 90 short tons of bollard pull.
Prime Video’s full-length trailer for Reacher season 3, released Wednesday, showcases Alan Ritchson’s buff titular character in peak action-hero form—arm wrestling, smashing heads through ...
In the course of these trials, the Nordic delivered a bollard pull of 207 tons (ca. 2,030 kN). [10] After its completion on 15 November 2010 and the christening on 8 December 2010 by Susanne Ramsauer, the wife of Federal German Minister of Transport Peter Ramsauer , the ship replaced the salvage tug Oceanic which was decommissioned after 41 ...