Built in 1981, by Sanchez Marine Services of Fall River, Massachusetts (hull #8006) as the Osprey for the Allied Transportation Company of Norfolk, Virginia.
In 2003, the tug was acquired by the Sirius Maritime Company of Seattle, Washington. A division of Hawaiian InterIsland Towing Incorporated of Honolulu, Hawaii. Where she was renamed as the Altair.
In 2006, the Sirius Maritime Company was acquired by the K-Sea Transportation Partnership of East Brunswick, New Jersey. Where the tug retained her name.
In 2011, the the K-Sea Transportation Partnership was acquired by the Kirby Corporation of Channelview, Texas. Where the tug retained her name.
In 2016, she was acquired by undisclosed interests. Based on the West Coast of the United States.
She is a twin screw tug, rated at 3,600 horsepower.
(Robert P. Hill, Robert Mattsson, Captain Christopher Roehrig, Captain Eric Takakjian)