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AYRSHIRE
Pictured as: the Delta Ruler (Crosby Marine) Photo by: Glen Daigrepont

Built in 1967, by Big River Shipbuilding Incorporated of Vicksburg, Mississippi (hull #5) as the Mr. Bryan.

In 1967, the tug was acquired by Tidewater Marine Services Incorporated New Orleans, Louisiana. Where she was renamed as the Ayrshire.

In 2001, she was acquired by the Delta Towing Company of Houma, Louisiana. Where she was renamed as the Delta Ruler.

In 2011, the tug was acquired by the Crosby Marine Transportation Company of Golden Meadow, Louisiana where she retained her name.

Powered by three, Cummins KT 19M diesel engines. With Twin Disc 2/5-14C & 1/5-14B reduction gears, at a ratio of 5.16:1. Turning three, 56(in) by 42(in) by 5(in) She is a triple screw tug, rated at 1,275 horsepower.

Her electrical service is provided by two, 30kW, generator sets. Driven by two, GM 3-71 diesel engines. The tug's capacities are 9,500 gallons of fuel, 200 gallons of lube oil, and 3,000 gallons of water.


  • Vessel Name: AYRSHIRE
  • USCG Doc. No.: 509856
  • Vessel Service: TOWING VESSEL
  • IMO Number: 8037164
  • Trade Indicator: Coastwise, Unrestricted Registry
  • Call Sign: WDC2306
  • Hull Material: STEEL
  • Hull Number: 5
  • Ship Builder: BIG RIVER SHIPBUILDING IN
  • Year Built: 1967
  • Length: 67
  • Hailing Port: HOUMA, LA.
  • Hull Depth: 7.2
  • Hull Breadth: 26
  • Gross Tonnage: 84
  • Net Tonnage: 67
  • Previous Vessel Names:
    MR. BRYAN, Ayrshire
  • Previous Vessel Owners:
    Twenty Grand Offshore Inc., DELTA TOWING LLC, CROSBY MARINE TRANSPORTATION LLC