Built in 1931, by the Great Lakes Towing Company of Cleveland, Ohio (hull #66) as the Arizona for the Great Lakes Towing Company of Cleveland, Ohio.
In 1966, he tug was outfitted with a hydraulic, elevating wheelhouse for barge service in and around the Chicago area. However, the modification was later removed.
In 1955, the tug was reconfigured to diesel propulsion with a single, EMD 12-567C diesel engine. With a Falk Reverse reduction gear, at a ratio of 2.98:1. Turning one, 84(in) by 80(in), four bladed, fixed pitch, stainless steel propeller, in a Kort nozzle. She is a single screw tug, rated at 1,230 horsepower.
Her electrical service is provided by two, Detroit Diesel 3-71 diesel generator sets.
(Isaac Pennock, Will Van Dorp, Paul Strubeck)