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LIBERTY SERVICE
Photo by: Birk Thomas

Built in 1983, by McDermott Shipyard of Amelia, Louisiana (hull #274) as the Jaramac 63 for the J. Ray McDermott Company of Houston, Texas.

She was later acquired by Tidewater Marine of New Orleans, Louisiana. Under their tug operations subsidiary Twenty Grand Offshore where she was as renamed the Mac Tide 63.

In 2004, the tug was acquired by Hornbeck Offshore Transportation of Covington, Louisiana. As part of their retrofit program along with her sister the Mac Tide 62 (which became the Freedom Service.)

She underwent an extensive renovation including the addition of an upper wheelhouse that allows for a height of eye of 71(ft) above minimum draft.

In 2005, she was reintroduced into service as the Liberty Service.

She is powered by two EMD 16-645 E7B main engines turning two four bladed, fixed pitch ducted 120(in)/3,040(mm) propellers for a rated 6,140 horsepower.

Her electrical service is provided by two Detroit Diesel 8V-71 generators rated at 125kw / 250kw generating 480V/60 Hz/3-Phase.

The tug's towing gear consists of an INTERcon DD-225/82155 double drum, side by side towing winch outfitted with 3,500(ft) of 2(in) diameter cable.

In 2013, Hornbeck Offshore Transportation's tug division was acquired by Genesis Energy of Houston, Texas. Where the tug retained her name.


  • Vessel Name: LIBERTY SERVICE
  • USCG Doc. No.: 660022
  • Vessel Service: TOWING VESSEL
  • IMO Number: 8207604
  • Trade Indicator: Coastwise Unrestricted, Registry
  • Call Sign: WDB9387
  • Hull Material: STEEL
  • Hull Number: 274
  • Ship Builder: MCDERMOTT SHIPYARDS INC
  • Year Built: 1983
  • Length: 117.5
  • Hailing Port: NEW ORLEANS, LA.
  • Hull Depth: 16.4
  • Hull Breadth: 37.1
  • Gross Tonnage: 169
  • Net Tonnage: 115
  • Owner:
    HORNBECK OFFSHORE TRANSPORTATION LLC
    103 NORTHPARK BLVD STE 300
    COVINGTON, LA 70433
  • Previous Vessel Names:
    Jaramac 63, Mac Tide 63
  • Previous Vessel Owners:
    J. Ray McDermott Co. ; TWENTY GRAND OFFSHORE INC (Tidewater Marine), HORNBECK OFFSHORE TRANSPORTATION LLC