Rosemary & Ava M. McAllister specifications

ROSEMARY MCALLISTER

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

AVA M. MCALLISTER

Owner/operator: McAllister Towing and Transportation Co.
Builder: Horizon Shipbuilding/Eastern Shipbuilding
Designer: Jensen Maritime Consultants
Dimensions: 100’ x 40’ x 16’4”
Mission: Ship assist, escort and rescue towing
Crew size: 4-6  
    
Propulsion:

  • Engines: (2) Tier 4 Cat 3516E, 3,386 hp
  • Bollard pull: 80 metric tons ahead
  • Vessel speed: 12 knots cruising, 14 max
  • Z-drives: (2) Schottel SRP 4000 FP turning 2,800-mm nibral 4-blade props
  • Auxiliary generators: (3) Cat Tier 3 C7.1 engines driving 118-kW generators

Deck equipment:

  • Bow winch: Markey DEPCF-52 single-drum 75-hp hawser
  • Stern winch: Markey DEPC-42 single-drum 40-hp hawser
  • Cordage: 800’ of 10” Samson Saturn-12 HMPE line
  • Fendering: Viking

Navigation gear:

  • Radar: (2) Furuno FR-8122 with ARPA and 4’ antenna
  • Chartplotter: Furuno NavNet TZtouch2
  • Compass: (2) Anschutz Standard 22 gyrocompass; 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
  • Capacities:
  • Fuel: 58,710 gallons
  • Lube oil: 545 gallons
  • Urea: 2,500 gallons
  • Potable water: 3,075 gallons

Firefighting:

  • Monitors: (2) FFS 300M manually operated monitors, 1,500 gpm each
  • Pumps: (1) FFS SFP150x200HD pump rated at 3,000 gpm, powered by (1) Cat C9.3 engine
  • Machine space fire suppression system: FM-200 fixed system
Categories: American Tugboat Review, Tugboats & Towing