On June 6, Eastern Shipbuilding Group launched the HOS Black Watch (Hull 208) for Hornbeck Offshore Services. The HOS Black Watch is Eastern’s fourth vessel in Hornbeck Offshore’s HOSMAX 310 class series. The launching event was held at Eastern’s Allanton, Fla., facility.
Eastern’s HOSMAX launch and delivery sequence started in 2013, with three vessels delivered with two additional vessels delivered in early 2014. The HOS Black Foot is the sixth vessel overall and is currently at Eastern completing final regulatory commissioning and DP-2 trials and will deliver later this month.
The 302'x64'x26' HOS Black Watch is a diesel-electric powered, twin Z-drive propelled OSV. It features four Caterpillar 3516C 16-cylinder turbo-charged Tier 3 diesel generator engines each rated at 1,825 kW at 1,800 rpm. Main propulsion power is provided by two GE Energy furnished Hyundai 2,500 kW 690VAC electric 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 is also providing two STT 4 fixed pitch tunnel thrusters rated at 1,180 kW at 1,170 rpm, each with direct coupled Hyundai 690VAC electric motors. GE Energy Power Conversions is providing the complete system integrated diesel electric package, including the propulsion and thruster drives, motors, control systems, DP system, switchboards, motor control centers, automation and navigation/communication electronics.
These HOSMAX 310 OSVs are capable of a maximum speed of 14 knots with a cruising speed of 12 knots. The fully integrated bridge is arranged for increased visibility and features the latest technology in navigation, communication equipment.
The HOSMAX 310 offshore support vessels feature the following characteristics:
Deadweight tonnage: 6,144 LT
Total fuel oil capacity: 285,649 gals.
Fuel oil day-tanks 23,752 gals.
Drill water/Ballast capacity: 609,227 gals.
Potable water capacity: 62,538 gals.
Liquid mud capacity: 21,509 bbl. (10) Tanks
Dry-bulk mud: 14,347 cu. ft. (7) Tanks
Methanol capacity 2,212 bbl. (2) Tanks
Clear deck area: 11,137 sq. ft.
All 10 of the HOSMAX offshore supply vessels under contract are USCG, ABS Classed A1, Offshore Support Vessel and Ocean Service, Loadline, AMS, ACCU, Circle E, DPS-2 with additional ABS Class notations UWILD, ENVIRO, FFV-1 and certified under SOLAS/IMO.
