Built in 1944 by the Ackerman Boat Company of Newport Beach, California as the TP-111 for the United States Army.
In 1956, the tug was acquired by the Washington Tug and Barge Company of Seattle, Washington. Where she was renamed as the Tartar.
In 1979, the Washington Tug and Barge Company was acquired by the Knappton Towboat Company of Astoria, Oregon. Where the tug was renamed as the Bill Clark.
In 1996, the tug was acquired by High Spot Charterers Incorporated of Friday Harbor, Washington and rebuilt as a yacht. Where she was renamed as the Pacific Explorer.
In 2000, she was acquired by an individual named Peter Strell of Friday Harbor, Washington. Where the tug was renamed as the Tiger-Horse.
She is a single-screw tug with 450 horsepower.