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ENDEAVOR
Photo by: Birk Thomas

Built in 2000, by Halter Marine of Lockport, Louisiana (hull #1838) as the Endeavor for Marine Towing of Tampa of Tampa, Florida.

The tug is a SDM (Ship Docking Module). The engines are coupled to the Z-drives, mounted along the centerline of the tug which incorporate the speed reduction gearing and steering, allowing the propeller and nozzle to rotate 360 degrees. The tugs where constructed with a semi flat bottom hull. With two diametrically opposed azimuthing Z-drives, which allows for 100 percent of the tug's 120,000 lbs. of bollard pull to be applied in any direction while stationary against a ship’s hull. The vessel can effectively propel itself sideways at six knots, and forward and astern at up to 12.5 knots. The boats are stabilized in the water with 12-foot skegs fore and aft. While in a ship assist mode, the SDM’s centrifugal fendering system allows the boat to utilize every point of its hull to control and maneuver a ship.

The Mark II SDMs, were constructed with slightly larger accommodation spaces and other improvements based on operational experience, and powered by Warstsila main engines. The Endeavor was the third Mark II SDM.

However, the former managers of Hvide's harbor operations founded their own company. And acquired the remaining two SDMs from the builders. Those individuals had been heavily involved in the development and operation of the SDMs.

Powered by two Wärtsilä 9L20C diesel engines rated at 2,100 horsepower each, turning at 1,000 RPMs with two Ulstein 1650H Z drives, with stainless steel propellers for a rated 4,200 horsepower.

The tug's electrical service is provided by two 65kW generators, with Caterpillar 3306 diesel engines. Her capacities are 16,900 gallons of fuel, 1,300 gallons of lube and hydraulic oil, and 1,300 gallons of potable water.

Her deck equipment consists of a Markey DYSF-39 hawser hydraulic winch, outfitted with 500(ft) of 8(in) Amsteel Blue nylon rope.


  • Vessel Name: ENDEAVOR
  • USCG Doc. No.: 1100115
  • Vessel Service: TOWING VESSEL
  • IMO Number: 9237905
  • Trade Indicator: Coastwise Unrestricted
  • Call Sign: WDB3177
  • Hull Material: STEEL
  • Hull Number: 1838
  • Ship Builder: HALTER MARINE COMPANY
  • Year Built: 2000
  • Length: 86.7
  • Hailing Port: TAMPA, FL.
  • Hull Depth: 10.8
  • Hull Breadth: 50
  • Gross Tonnage: 187
  • Net Tonnage: 127
  • Owner:
    TAMPA TUGS LLC
    908 S 20TH STREET
    TAMPA, FL 33605-6304
  • Previous Vessel Owners:
    TAMPA TUGS LLC