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NAVIGATOR
Photo by: Raenuld Greenleaf

Built in 1975, by McDermott Shipyard Incorporated of Morgan City, Louisiana (hull #199) as the Navigator for Crowley Marine Services Incorporated of San Francisco, California.

She was the third Invader class tug constructed by McDermott Shipyards for Crowley Marine Services Incorporated.

In 2019, the tug was scrapped.

She was powered by two, twenty cylinder, EMD 20-645-EG diesel engines. With Falk reduction gears, at a ratio of 4.345:1. Turning two, five bladed, stainless steel, fixed pitch propellers. She was rated at 7,200 horsepower.

Her electrical service was provided by two, 90kW, Caterpillar D 3304 generator sets. The tug's capacities are 155,000 gallons of fuel oil, 3,300 gallons of lube oil, and 15,000 gallons of potable water,

The towing equipment consisted of a double drum, Markey TDSDW 36C, towing winch. Outfitted with 3,000(ft) of 2.75(in) towing wire on each drum.


  • Vessel Name: NAVIGATOR
  • USCG Doc. No.: 562688
  • Vessel Service: TOWING VESSEL
  • IMO Number: 7397658
  • Trade Indicator: Coastwise Unrestricted, Registry
  • Call Sign: WBO3345
  • Hull Material: STEEL
  • Hull Number: 199
  • Ship Builder: MCDERMOTT SHIPYARD
  • Year Built: 1975
  • Length: 127.2
  • Hull Depth: 10.8
  • Hull Breadth: 36.5
  • Gross Tonnage: 135
  • Net Tonnage: 199
  • Previous Vessel Owners:
    CROWLEY MARINE SERVICES INC