Incat Crowther has announced the delivery of John Jacob, a 205’ aluminum monohull Crew Supply Vessel, for Barry Graham Oil Service of Bayou La Batre, Alabama. The vessel was built by Halimar Shipyard in Morgan City, Louisiana.
Driving factors in the design and build process included providing a modern and fuel-efficient design meeting the latest demands of crew supply vessels in the Gulf of Mexico, whilst maintaining continuity with existing BGOS fleet operational features.
John Jacob has a vast aft cargo deck of nearly 340 sqm (3,640 square feet), which carries loads up to 450 long tons.
The main deck cabin houses 72 passenger seats, passenger shower and toilet, stores, a dedicated DP equipment room, and access to the upper deck wheelhouse below deck accommodations. A deck locker, accessed from the cargo deck, is provided for storage of deck cargo securing equipment and other safety gear.
Below decks, John Jacob’s crew members are accommodated in twin cabins, capable of sleeping a total of 12. In addition to the vessel’s 15,296 gallons of fuel, 17,484 gallons of transferrable fuel can be carried.
The vessel is powered by a quartet of Cummins QSK 50 engines, rated at 1,800bhp each. These drive through Twin Disc MGX 6848 gearboxes to four Hamilton HM811 waterjets via cardan shaft assemblies from Driveline Service of Portland. The vessel reached a top speed in excess of 32 knots during sea trials.
The vessel is USCG Subchapter T approved and ABS classed for DP-2 service. Three Thrustmaster 150hp tunnel bow thrusters combine with the four jets and a Beier Radio DP-2 control system to give the vessel superior maneuverability. Electric power is generated from three Cummins 6CTA gensets rated at 185 ekW.
Additionally, a FiFi-1 firefighting system is installed for the purpose of combatting off-ship fires. The system includes two FFS engine-driven pumps, each with 5300 gpm capacity, with integral clutch assemblies and remote controlled monitors.