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AMERICAN ENDEAVOR
Pictured as: the Valviria (Pacific Fuel Services Limited) Photo by: Vladimir Knyaz

Built in 1952, by RTC Shipbuilding Incorporated of Camden, New Jersey (hull #209) as the Pottsville for the Reading Railroad Company of Philadelphia, Pennsylvania.

In 1961, the tug was acquired by the McAllister Brothers Towing Company of New York, New York. Where she was renamed as the Michael J. McAllister.

In 1970, she was acquired by the Mobile Towing and Wrecking Company of Mobile, Alabama. Where she was renamed as the William A. Weber.

In 1971, the tug was acquired by the Moran Towing Company of New York, New York. Where she retained her name.

In 1977, she was acquired by the American Pacific Industrial Leasing Corporation of Portland, Oregon. Where the tug was renamed as the American Endeavor.

In 1978, the tug was acquired by E.N. Bisso and Son Incorporated of Metairie, Louisiana. Where she was renamed as the Beverly B.

In 1997, she was acquired by Pacific Fuel Services Limited of Panama City, Panama. Where the tug was renamed as the Valviria.

In 2008, the tug was acquired Siministros Marinos Limited of Panama City, Panama. Where the tug retained her name.

She was powered by a single, Fairbanks-Morse 10-38D diesel engine. The tug was single screw, rated at 1,600 horsepower.
(Paul Strubeck)


  • Vessel Name: AMERICAN ENDEAVOR
  • USCG Doc. No.: 263176
  • Vessel Service: TOWING VESSEL
  • IMO Number: 5233913
  • Trade Indicator: Coastwise Unrestricted
  • Call Sign: WE3078
  • Hull Material: STEEL
  • Hull Number: 209
  • Ship Builder: RTC SHIPBUILING CORP
  • Year Built: 1952
  • Length: 104.2
  • Hull Depth: 11.3
  • Hull Breadth: 26.1
  • Gross Tonnage: 147
  • Net Tonnage: 100
  • Previous Vessel Names:
    Pottsville, Michael J. McAllister, William A. Weber, William A. Weber, American Endeavor, Beverly B., Valviria
  • Previous Vessel Owners:
    Reading Railroad Co., McAllister Bros. Towing Co., Mobile Towing and Wrecking Co., Moran Towing Co., American Pacific Industrial Leasing Corp., E N BISSO & SON INC., PACIFIC FUEL SERVICES SA., Siministros Marinos Ltd.