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Pair of newbuild mooring vessels strengthen Indonesian LNG terminal operations
A subsidiary of one of Indonesia’s largest copper and gold mining companies has boosted its gas terminal capabilities by adding two mooring vessels to its fleet
Amman Mineral Nusa Tenggara (AMNT) has taken delivery of two mooring vessels after their construction by Dumas Shipyard in Surabaya, in Indonesia, to support LNG carriers docking at a gas terminal.
Amman Khatulistiwa 01 and Amman Khatulistiwa 02 were built to Robert Allan Ltd’s RAmbler 1400 design for handling the mooring lines of large LNG carriers in the port of Benete in West Nusa Tenggara.
These 14-m boats have a moulded beam of 6 m, a moulded depth of 2 m, a maximum draught of almost 2 m, a bollard pull of around 6 tonnes and a speed of 10 knots. The vessels are equipped to perform line towing, vessel pushing and oil spill recovery.
Their construction was supervised by IMEC International Services, which provides project management and naval engineering services for AMNT, a subsidiary of Amman Mineral Internasional.
Lloyd’s Register classed these newbuilds as 100A1, G2, SSC workboats. Their main propulsion machinery includes two Caterpillar C7 diesel engines rated at 209 kW at 2,300 rpm and two five-blade, 900-mm diameter, Kaplan style propellers in Kort nozzles.
A generator provides 220 V of alternating-current power and installed battery banks are charged by a generator or main engine alternators, to provide direct-current power for the boats’ navigation and communications equipment, lighting, engineroom pumps and deck machinery.
For light towing, Amman Khatulistiwa 01 and Amman Khatulistiwa 02 each has a forward towing bitt and an aft bitt with a towing hook, and they have bow pushing fenders for vessel docking.
They also feature an aft deck of 3 m by 3 m for storing equipment such as skimmers for oil spill recovery and have a deck crane to deploy skimmers and for general cargo use.
“The vessel has a single chine hullform for maximum roll damping which also simplifies construction,” said Robert Allan. “A rope-based guard cage protects the wheelhouse. Aft, the bulwarks are lower to prevent fouling by towlines. The mast and radar can fold to reduce air clearance under the flared hull of large ships.”
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