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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.
A deep-penetrating anchor (DPA) is conceptually similar to a torpedo anchor: it features a dart-shaped, thick-walled, steel cylinder with flukes attached to the upper section of the anchor. A full-scale DPA is approximately 15 metres (49 ft) in length, 1.2 metres (4 ft) in diameter, and weighs on the order of 50–100 tonnes (49–98 long tons ...
This is particularly important for light, modern anchors designed to bury in the bottom, where scopes of 5:1 to 7:1 are common, whereas heavy anchors and moorings can use a scope of 3:1, or less. Some modern anchors, such as the Ultra holds with a scope of 3:1; [ citation needed ] but, unless the anchorage is crowded, a longer scope always ...
The Coast Guard's 47-foot primary heavy-weather boat used for search and rescue as well as law enforcement and homeland security. [14] Response Boat – Medium: 45' The Coast Guard has signed a multi-year contract for 180 Response Boat – Medium (RB-M) boats that were delivered starting in 2008 to replace the 41′ UTB boats.
Fir is the first unit in the U.S. Coast Guard to do so. [6] As a heavy lift platform Fir has a 20-ton hydraulic crane, a chain in-haul system and 4 heavy cross-deck winches. [5] Fir carries two small boats; a cutter boat large (CB-L), specifically designed for law enforcement, and a C.G. Standard Utility Boat (UTL). [5]
Heavy damage kept the ARD busy on self-repairs for only a brief time. She soon resumed her drydocking and repair role, and continued that service, at Subic Bay, Luzon, until after the end of World War II. In 1948, ARD-19 was towed back across the Pacific and on 29 October she reported for duty with the Pacific Reserve Fleet at Long Beach. For ...