Gulf Craft Delivers Mammoth Crew/Supply Boat

In late May Gulf Craft Inc. delivered what is touted as the world's largest Crew/Supply Vessel, M/V Granville C. McCall, to Seacor Marine, Inc. of Houston. The vessel is powered by five Cummins KTA-50-M2 diesel engines rated at 1,800 bhp @ 1,900 rpm, each coupled with a Twin Disc, model MG-6848, 2.93:1 reduction ratio gear. Each engine turns a four blade Teinbridge 54 x 54-in. Nibral propeller providing a light ship speed of 25 knots and fully loaded speed of 20 knots. The vessel, to enhance manueverability, features a Thrustmaster 400 hp azimuthing thruster, powered by a Cummins N-14-M diesel engine. Twin 99KW Cummins 6BT5.9-G2 generators supply electrical power for the vessel's services and a Cummins 6CT8.3 diesel engine powers the Leroi WE 150 IIM - 80 PSI bulk compressor. The Granville C. McCall measures 190 x 35-ft. and can carry 46,000 gallons of fuel, 82,000 gallons of drill/potable water, dry bulk capacity of 3,000 cu. ft., 2,500 gallons of ship's water, 600 gallons of main engine lube oil, 125 gallons of gear lube oil, 90 gallons of hydraulic oil, 6,000 gallons of gray water holding and waste oil capacity of 180 gallons. Aft deck space measures 112' x 28' providing 3,136 sq. ft. of loading area and deck cargo capacity of 400 long tons. It is capable of discharging drill water at 700 gpm @ 160 ft., discharging fuel oil at 350 gpm @ 130 ft. and dry bulk at 780 cu. ft./hr. @ 80 psi. In addition to servicing offshore facilities, it has fire fighting capabilities to pump 900 gpm via the stern fire monitor and 2,650 gpm via the main fire monitor. Passenger accommodations include 97 reclining business class bucket seats in the air conditioned main deck cabin. Special accommodations for the passengers include a refreshment area with a snack, beverage, and ice cream vending machine, microwave oven, coffee maker and kitchen sink. The passenger compartment is equipped with two 32-in. televisions and VCR, an AM/FM stereo receiver with CD player and Dolby Surround Sound system providing VCR surround sound playback. Located aft of the passenger seating area on the port side is the head with lavatory, shower stall and toilet. Navigational and electronic equipment aboard the vessel includes two Garmin GPS, dual Furuno radars, two ICOM VHF radios, two VHF remotes by ICOM, an ICOM Single Side Band radio, autopilot by ComNav, DPS-1 system by Kongsberg Simrad, loudhailer by Raytheon, fluxgate compass by KVH, Navtex Receiver by Furuno, fathometer by Datamarine, camera monitoring system by Pro Video, stereo/cassette player by Seaworthy, two forward search lights by Carlisle Finch and navigation lights by Perko.