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The ship mounted a retractable crane on the starboard side of the flight deck, just aft of the rear elevator. [6] The ship's air group was originally intended to consist of 12 Mitsubishi A6M Zero fighters, plus three in storage, 27 Aichi D3A Val dive bombers, plus three in reserve, and 18 Nakajima B5N "Kate" torpedo bombers (plus two in crates).
A Safe Load Indicator (SLI) or an Automatic Safe Load Indicator (ASLI) is a device which is installed on mobile or portal cranes to alert the operator if the lift is exceeding the safe operating range of the machinery. [1] In some cases, the device will physically lock the machinery in circumstances it determines to be unsafe.
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.
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.
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.
The male component is the twistlock, which is fitted to cranes and transport bases. This can be inserted through the hole (it is roughly 4.1 in or 104.1 mm long and 2.2 in or 55.9 mm wide), and then the top portion (normally pointed to make insertion easier) is rotated 90°, so that it cannot be withdrawn.
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.
Taisun, the world's strongest gantry crane, at Yantai Raffles Shipyard, Yantai, China. Full gantry cranes (where the load remains beneath the gantry structure, supported from a beam) are well suited to lifting massive objects such as ships' engines, as the entire structure can resist the torque created by the load, and counterweights are generally not required.