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Primary, North American cranes (3) on starboard quarter, main deck and on port side, 02 level. Morgan Marine cranes (2), normally on foredeck and at other locations to suit mission. Fritz-Culver A-frame at stern, retractable hydroboom on starboard side by staging bay door. Blue Extension crane on starboard 01 aft of rescue boat davit.
The D7 mine plough is a V-shaped plough that performs countermine activities by lifting surface laid mines and pushing them to the side as the vehicle moves forward. They are controlled by the driver. A winch and retractable A-frame crane are mounted on the turret for lifting, carrying and winching operations.
A level-luffing crane is a crane mechanism where the hook remains at the same level while luffing: moving the jib up and down, so as to move the hook inwards and outwards relative to the base. [ 1 ] Usually the description is only applied to those with a luffing jib that have some additional mechanism applied to keep the hook level when luffing.
This specific example uses a level luffing mechanism to maintain the load at approximately the same vertical height as the jib moves through its range of travel. A jib or jib arm is the horizontal or near-horizontal beam used in many types of crane to support the load clear of the main support. [1] [2] An archaic spelling is gib. [3]
The Guinness World Records state that Taisun holds the world record for "heaviest weight lifted by crane", set on April 18, 2008 at 20,133 metric tonnes (44,385,667.25 lb) by lifting a barge, ballasted with water. [3] However, it was surpassed by the Honghai Crane when the new crane was completed in 2014, with a lift capacity at 22,000 tonnes. [5]
It manufacturers lattice boom crawler cranes with capacities ranging from 50 to 275 tons. The American Crane Corporation was founded in 1882 as the Franklin Manufacturing Company, and in 1892 the name changed to American Hoist & Derrick. The company manufacturers terrain cranes, crawler cranes and tower cranes.