The world’s largest cruise ship, Royal Caribbean International’s Oasis of the Seas, will be equipped with the world’s largest lifeboats. Lifeboat and davit manufacturer Schat-Harding developed 370-person lifeboats with a unique davit system.
The Oasis of the Seas is equipped with eighteen of Schat-Harding’s unique, 370-person CRV55 lifeboats and LS45 davit systems. The CRV55 is the only pure lifeboat with a catamaran hull, which provides excellent sea-keeping capability and manoeuvrability. The LS45 davit, meanwhile, is a completely new integrated system for cruise vessels. The lifeboats are lowered directly from the stowed position, so that no outswing is needed, and the entire boat is positioned outside the hull of the ship. The CRV55 is of reinforced construction and has a special ‘green sea’ lashing system, making it secure in high waves.
Safer Evacuation
Ole Meijer, executive vice-president of Schat-Harding’s equipment division, explains, “The boats and davits have been specially designed for the RCCL Genesis project ships which are being built at STX Europe. We have worked in close co-operation with STX, RCCL, Germanischer Lloyd and DnV to find a way to improve the safe evacuation of the 8,000-plus passengers and crew who will be sailing on these ships. These new boats will be safer and quicker to board for large numbers of people. They will also be easier to get away from the ship, because the davit does not have to move, and they will be safer once in the sea as they have twin engines and full built-in buoyancy. They meet all SOLAS requirements.”
CRV55
The CRV55 boat is 16.7 m long and 5.6 m wide. Built from fibreglass reinforced polyester using a vacuum technique, the boat weighs 16 tonnes in its stowed condition and 44 tonnes when fully loaded. Two 70 HP diesel engines give the boat a speed of 6 knots, and the catamaran hull and twin rudders provide excellent manoeuvrability.
The Design
Describing the design of the boat and davit system, Meijer says, “This is the nearest you can get to a ‘pull and go’ system. The boat will hang from two quick release hooks which are simple to operate and which have clear visual indication of both locked and unlocked status. Lashing and bowsing are integrated and embarkation is at the stowed position through four colour-coded doors leading to ergonomically-planned colour-coded seating areas arranged on two levels. The winches are designed with a retraction system to lift the lowering block free from the boat canopy and a retardation function to reduce forces on the davit, winch and lifeboat hook when stopping.
Oasis of the Seas
Royal Caribbean describes Oasis of the Seas as ‘the largest and most revolutionary cruise ship in the world’. The 225,282 gt vessel carries 5400 passengers, and features 2700 staterooms.
Picture: Schat-Harding’s 370-person CRV55 lifeboat on test at sea (https://www.schat-harding.com/index.cfm?id=270338[Schat-Harding])
For artist impressions of the system, please click https://www.swzonline.nl/fotoverslag/15[here]
