Capt. Brian A. McAllister/Rosemary McAllister specifications

Owner/operator: McAllister Towing and Transportation Co.
Builder: Horizon Shipbuilding
Designer: Jensen Maritime Consultants
Dimensions: 100’ x 40’ x 18’
Mission: Assist, escort and rescue
Crew size: Up to 7

Propulsion

  • Engines: (2) Caterpillar 3516E Tier 4 diesels, 3,386 bhp each at 1,800 rpm
  • Thrusters: (2) Schottel SRP4000 FP bottom-mount units
  • Propellers: (2) 2,800-mm nibral 4-blade props in nozzles
  • Bollard pull: 80 metric tons ahead (estimated)
  • Vessel speed: 12 knots cruising, 14 knots maximum
  • Gearbox: Lufkin 2:1
  • Auxiliary generators: (3) Caterpillar Tier 3 C7.1 keel-cooled diesels driving 118-kW generators

Deck equipment

  • Bow winch: Markey DESF-48 single-drum 100-hp hawser winch, capacity of 800’ of 10” line
  • Stern winch: Markey TES-40 75-hp electric single-drum towing winch, capacity of 2,500’ of 2.5” wire
  • Cordage: 800’ of 10” HMPE Samson Saturn-12 line
  • Bow staple: Flat A-staple with .25” stainless-steel hard-face cladding on inner radius, H-bitt incorporated into A-staple
  • Fendering: Viking Rubber soft loop with 36”x50’ Shibata cylindrical on forward and aft bulwarks; D-fendering port and starboard

Navigation gear

  • Radar: (2) Furuno FR8122 with ARPA and 4’ antenna
  • Chartplotter: Furuno TZtouch2
  • Compass: (2) Anschutz Standard 22 gyro compass, Ritchie Globemaster magnetic compass
  • AIS: Furuno FA310 series
  • E-nav software: Rose Point Navigation Systems
  • Autopilot: Anschutz PilotStar D
  • GPS: (2) Furuno GP32

Communications

  • Radio: (3) Standard Horizon GX2200
  • Loud hailer: Standard Horizon VLH-3000
  • CCTV cameras located bow, port, starboard, stern and engine room

Capacities

  • Fuel: 58,710 gallons
  • Lube oil: 545 gallons
  • Urea: 2,500 gallons
  • Waste oil: 1,444 gallons
  • Foam water: 750 gallons
  • Potable water: 3,075

Firefighting

  • Monitors: (2) FFS 1200LB fire monitors rated at 5,284 gpm, adjustable fog tip with foam capability
  • Pumps: (2) FFS SFP 250×350 rated at 5,980 gpm, 185 psi; powered by (2) Caterpillar C18 Tier 4 diesels, 831 hp at 1,800 rpm
  • Deluge system: Stainless-steel piping with stainless nozzles positioned around superstructure exterior
  • Machine space fire suppression system: FM-200 fixed system
  • Fire stations: (3) hose stations with 50’ of hose; nozzle and wrench with (3) additional 50’ of hose

Coatings

  • Exterior below waterline: PPG Amerlock 2/400 and ABC 3 antifouling coating
  • Exterior above waterline: PPG 302 H Zinc, Amerlock 2/400, PSX 700 zinc primer
  • Tank and interior: PPG Amerlock 2/400, PSX 700 in engine room

Certifications and classifications

  • Hull: ABS Maltese Cross A1 Towing Vessel – Escort Service, bollard pull and FFV1 notations
  • Machinery: ABS Maltese Cross AMS, ACCU notation
By Professional Mariner Staff