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Shiplift. A shiplift is a modern alternative for a slipway, a floating dry dock or a graving dry dock. A shiplift is used to dry dock and launch ships. It consists of a structural platform that is lifted and lowered exactly vertically, synchronously by a number of hoists. First, the platform is lowered underwater, then the ship is floated above ...
Small platforms built into the sides of a ship to spread the shrouds to a more advantageous angle. Also used as a platform for manual depth sounding. chalupa 1. A small boat that functions as a shallop, water taxi, or gondola. 2. In Portuguese, a small boat used for cabotage, propelled by either oars or sails. Those equipped with sails have a ...
A boat lift, ship lift, or lift lock is a machine for transporting boats between water at two different elevations, and is an alternative to the canal lock. It may be vertically moving, like the Anderton boat lift in England, rotational, like the Falkirk Wheel in Scotland, or operate on an inclined plane, like the Ronquières inclined plane in ...
A heavy-lift ship is a vessel designed to move very large loads that cannot be transported by normal ships. They are of two types: Semi-submersible ships that take on water ballast to allow the load—usually another vessel—to be floated over the deck, whereupon the ballast is jettisoned and the ship's deck and cargo raised above the ...
Shiplift. The Syncrolift shiplift is a piece of equipment for lifting boats, ships and vessels onto land and back at sea for maintenance work or repair. The vessel is maneuvered over a submerged cradle, which is then lifted by a set of synchronized hoists or winches. The vessel can be worked upon in place, or it can be moved inland.
A jackup rig is a barge fitted with long support legs that can be raised or lowered. The jackup is maneuvered (self-propelled or by towing) into location with its legs up and the hull floating on the water. Upon arrival at the work location, the legs are jacked down onto the seafloor. Then "preloading" takes place, where the weight of the barge ...
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Semi-submersible platform. A semi-submersible platform is a specialised marine vessel used in offshore roles including as offshore drilling rigs, safety vessels, oil production platforms, and heavy lift cranes. They have good ship stability and seakeeping, better than drillships. [1]