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Douglas B. Mackie specifications

Jun 26, 2017 03:56 PM

Owner/operator: Great Lakes Dredge & Dock Co.
Builder: Eastern Shipbuilding Group
Designer: Ocean Tug/Barge Engineering, Ship Architects
Dimensions: 158.4’ x 52’ x 27.3’ (draft)
Mission: Dual-mode ATB tug, power unit for trailing suction hopper dredge barge
Crew size: 26

Propulsion

  • Main engines: (2) Tier 3 MaK 12M32C producing 7,721 bhp each
  • Propulsion gears: (2) OCG SA382-2S
  • Shaft generators: (2) 6,600-volt Indar LSA-630-S/4
  • Bollard pull: 118 ST (tested to 100 tons)
  • Vessel speed: 14 knots (loaded)
  • Propellers: Schottel SCP 109/4XG CP in nozzles
  • Rudders: (2) Van der Velden Barke flap type 530 BRA 45-40-15-CC-ABS
  • Auxiliary generators: Tier 3 Caterpillar C32, 1,047 bhp
  • Emergency generator: Tier 3 Caterpillar C18, 803 bhp

Deck equipment

  • Coupler system: Articouple  FRC 80
  • Winches: Aft capstan, Coastal Marine C95-30-127-131; forward capstan, Coastal Marine C17-15-61-131

Navigation gear

  • Radar: Furuno FAR2117BB X-band; FAR21377BB S-band
  • Electronic chart display: Furuno FMD-3200
  • Compass: Cassens & Plath Reflecta 1
  • AIS: Furuno FA150
  • E-nav software: Saab R5 Supreme
  • Autopilot: Simrad AP70
  • DP/DT: Beier Radio IVCS 2000 single-station DP system

Communications

  • Radio: Furuno FM8900S
  • Satellite connection: Furuno SC50 sat compass; KVH TracVision HD7 sat TV; SAILOR 900 sat Internet

Capacities

  • Fuel: storage, 236,000 gallons; day tanks, 15,000 gallons
  • Water: 9,100 gallons

Firefighting

  • Pumps: Goulds 3196 and 3796
  • Onboard fire suppression systems: Hiller Companies Securiplex Fire-Scope 5000 water mist protection system

Coatings

  • Hull: International Marine Coatings

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