Built in 2013, by Diversified Marine Incorporated of Portland, Oregon (hull #25) as the Bob Franco for Harley Marine Services Incorporated of Seattle, Washington.
In 2019, Harley Marine Services Incorporated became the Centerline Logistics Corporation of Seattle, Washington. Where the tug retained her name.
Powered by two, Tier III Caterpillar C175-16 diesel engines. With Schottel 1515-16 z drives. Outfitted with 2,600(mm)diameter, stainless steel propellers. For a rated 5,360 horsepower.
Her electrical service is provided by two, 250kW Caterpillar generator sets. The tug's capacities are 142,850 gallons of fuel, 6,534 gallons of water, 1,137 gallons of lube oil, and 1,263 gallons of hydraulic oil.
The towing gear consists of a Markey, double drum, towing winch. Outfitted with 2,600(ft) of towing wire mounted on her stern. And, a Markey ship assist hawser winch, mounted on her bow.