On Oct. 10, Eastern Shipbuilding Group delivered the HOS Red Rock to Hornbeck Offshore Services.
Covington, La.-based Hornbeck has 10 offshore supply vessels under contract at Eastern. The 292’x64’x24’6″ HOS Red Rock is the second of four diesel-electric powered, twin Z-drive propelled OSVs designated as the HOSMAX 300 series. The first, HOS Red Dawn, was delivered in June and is currently working in the Gulf of Mexico.
HOSMAX 300-series OSVs feature four Caterpillar 3516C 16-cylinder turbocharged Tier 3 diesel generator engines each rated at 1,825 kW at 1,800 rpm. Main propulsion 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 also provided 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 provided 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. The HOSMAX 300 vessels are capable of a maximum speed of 14 knots with a cruising speed of 12 knots.
The HOSMAX 300 Offshore Support Vessels feature the following capacities:
- Total Fuel Oil Capacity: 241,141 gals.
- Fuel Oil Day-tanks 20,190 gals.
- Drill Water/Ballast Capacity: 562,822 gals.
- Potable Water Capacity: 57,494 gals.
- Liquid Mud Capacity: 20,846 bbls.
- Dry-bulk Mud: 14,347 cu. ft.
- Methanol Capacity 1,605 bbls.
- Clear Deck Area: 10,585 sq. ft.
Hornbeck’s third HOSMAX 300 OSV, the HOS Renaissance, is currently at Eastern completing final outfitting, regulatory and DP-2 trials. Delivery of the HOS Renaissance is scheduled for November 2013.
The remaining six OSVs under contract are 302’x64’x26’ HOSMAX 310 OSVs. The total below-deck capacities of the HOSMAX 310 include 285,649 gals. of diesel fuel; 609,227 gals of drill/ballast water; 21,509 bbls. of liquid mud; 14,347 cu. ft. of dry-bulk mud; 2,212 bbls. of methanol; and 62,538 gals. of potable water.