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21M Multi-Purpose Launch

Apr 26, 2013

 

Designed in-house by the Cheoy Lee design team over 20 years ago, the design of this venerable launch has changed very little over the years. Used by several branches of Shell Petroleum in South East Asia, the steel vessel has been used for both pilot and mooring launch duties.



This latest delivery to Hongkong United Dockyard represents the completion of a tug and barge combination order, and this launch will work together with the custom built barges recently delivered by Cheoy Lee. The bow of the launch, heavily sheathed with rubber fendering, is a custom design that will interlock with either barge. Construction is to Bureau Veritas class, and propulsion is by a pair of Caterpillar C18 diesels, each developing 600hp at 1800rpm, at their continuous output duty rating. Propellers are fixed pitch, and housed in nozzles for improved thrust, resulting in a bollard pull of 18.7 tonnes, and a top speed of 12.5 knots. A single 17.5kW Onan generator is also housed in the open plan engine room. Two large removal hatches over the main engines lead directly to the clear deck space above for simple removal of machinery for maintenance and repair.

Fuel is contained in a large double bottom tank in the engine room, and two wing tanks outboard of the main engines. Fresh water is stored in a double bottom tank forward of the engine room. Total fuel capacity is 15,200 litres, and fresh water capacity is 1,600 litres.

Accommodation is minimal and comprises of a simple galley and head on the lower deck forward, with seating for 24 passengers on the main deck aft of the helm station. The launch is designed to be operated by a crew of three.

Aft of the engine room, there is a large storage area below the wood clad aft deck. Deck gear includes a towing hook, capstan and electric an davit to starboard. Above the wheelhouse, the navigation light mast can be folded down to within the area protected by steel rails to avoid damage from lines during ship mooring operations. The radar scanner and other electronics are also mounted within this protected area.

Principal Dimensions: 21.00m LOA x 5.85m Beam x 1.60m Draft