HOS Platform Supply Vessel launched at Eastern Shipbuilding

HOS Black Watch makes a splash at Eastern Shipbuilding's Allanton shipyard

JUNE 29, 2014—Eastern Shipbuilding Group, Panama City, recently launched the M/V HOS Black Watch, the fourth of six HOSMAX 310 design Platform Supply Vessels for Hornbeck Offshore Services (HOS), Covington, LA.

Launched at Eastern Shipbuilding Allanton shipyard, the diesel-electric HOS Black Watch is based on a design from naval architectural and marine engineering firm STX Marine, Inc., which has offices in Houston, TX, and Vancouver, BC., Canada. The vessel is 302 ft x 64 ft x 26 ft, with a deadweight capacity of 6,144 tons. The PSV is classed by ABS as +A1, Offshore Support Vessel and Ocean Zervice, Loadline, +AMS, +ACCU, +Circle E, +DPS-2, with additional ABS notations UWILD, ENVIRO, FFV-1 and certified under SOLAS.

The HOS Blackwatch has an impressive capacity of 21,509 bbl of liquid mud capacity in 10 tanks, with a clear deck space of 11,137 ft2, methanol capacity of 2,212 ft3, potable water capacity of 62,538 gal., drill water/ballast capacity of 609,227 gal., fuel oil day tank capacity of 23,752 gal., and total fuel oil capacity of 285,649 gal.

Propulsion power for the HOS Black Watch is supplied by four Caterpillar 3516C, 16-cylinder Tier 3 compliant diesel generator engines, each rated at 1,825 kW at 1,800 rev/min, that drive Hyundai 2,500 kW 690 VAC electric motors. The motors drive two Schottel SRP 2020 fixed-pitch Z-drives rated at 2,500 kW at 1,025 rev/min each. Two Schottel STT fixed-pitch tunnel thrusters, rated at 1,180 kW at 1,170 rev/min each, are direct coupled to Hyundai 690 VAC electric motors. GE Energy was the propulsion systems integrator, providing the entire diesel-electric propulsion package.