Built in 1981 by Quality Shipyards of Houma, Louisiana as the Gulf Raven (hull #167) for Gulf Fleet Marine Incorporated of Houston, Texas.
In 1985, Zapata Marine Service, Gulf Fleet Marine Incorporated, and Jackson Marine Services merged to form Zapata Gulf Marine Service Incorporated of Houston, Texas. Where the tug retained her name.
In 1987, the tug chartered to the Boston Barge and Tugboat Company of Boston, Massachusetts. Where she was renamed as as the Mystic.
In 1987, she was acquired by the United States Army. Where she was designated as the LT-102 (Mystic.) And, allocated to the Kwajalein Atoll in the Pacific Ocean. To provide services for the United Stated Army Space, and Missile Defense Command.
Powered by two, Caterpillar 3516C diesel engines. With Reintjes WAF 873 reduction gears, at a ratio of 4.95:1. Turning two, four bladed, 108(in) by 108(in), fixed pitch propellers, mounted in Kort nozzles. For a rated 4,000 horsepower.
Her electrical service is provided by two, 90kW Caterpillar generator sets. The tug's capacities include 134,610 gallons of fuel oil, 15,500 gallons of fresh water and 2,500 gallons of lube oil.
Towing equipment consists of a double drum, INTERcon DD-200, towing winch. Outfitted with 2,500(ft) 2.25(in) towing wire on each drum.
(Captain Eric Takakjian, Kyle Stubbs)