Eastern Shipbuilding Group Inc. launched the second of two 302’x76’x26’ multipurpose service vessels for Hornbeck Offshore Services last month, the HOS Woodland. The first MPSV, the HOS Warland, was launched in March.
The Woodland is the second ship to be christened on Eastern’s newly constructed 425’ rocker beam system installed on the northeast corner of Eastern's Allanton, Fla., facility’s 760' launch basin.
Thus far, Eastern has delivered eight HOSMAX 300/310-class PSVs to Hornbeck. The two remaining HOSMAX 310s are being converted to the HOSMAX 310EQH configuration, with enhanced capabilities to support the offshore specialty market. This includes helicopter landing decks and the flexibility to quickly add berthing for 50 to 130 persons in five different habitability configurations.
The two MPSVs have 9,000-kW of installed AC diesel electric power and twin azimuthing Z-drives. Each MPSV features four Caterpillar 3516C 16-cylinder turbocharged EPA Tier 3/IMO II diesel generator engines that are rated 2,250 kW at 1,800 rpm.
Main propulsion power will be provided by two GE Energy-furnished Hyundai 2,500-kW 690VAC motors driving two Schottel SRP 2020 FP Z-drives with nozzles rated at 2,500 kW at 1,025 rpm each for a total of 6,704 HP. Schottel also will provide three STT 3 fixed-pitch variable speed tunnel thrusters, two forward and one sternthruster, each rated at 880 kW, with direct coupled Hyundai 690VAC electric motors. A third bowthruster will be a swing down electric azimuthing variable speed thruster model TCNS 73CP rated at 880 kW provided by Rolls-Royce.
Each vessel will have accommodations for 73, galley and mess areas, a three-berth sick bay, a cinema/conference room with seating for 18 and a fully outfitted gym. For heavy offshore subsea construction work, a 250-MT offshore crane with 3,700 meters of main wire shall be installed. A second electro-hydraulic deck crane manufactured, with a capable of lifting a minimum of 1,500 lbs. at 27’ radius and shall be used to handle gangways and vessel stores.
Each 302’x76’x26’ MPSV is engineered by VARD Marine, Vancouver, Canada, and features the following capacities:
Deadweight Tonnage: 5,567 LT
Total Fuel Capacity: 521,800 USG
Day-tank Fuel Capacity: 27,183 USG
Drill Water Capacity: 618,655 USG
Potable Water Capacity: 25,233 USG
Liquid Mud Capacity: 20,190 bbls. (9) Tanks
Methanol Capacity: 1,707 bbls. (2) Tanks
Clear Deck Area: 10,338 sq ft. (Approx.)