Pictured as: the John P. (McDonough Marine) Photo by: McDonough Marine

diesel in 1976, tug's capacites B. are 10,000 gallons Incorporated of Pascagoula, 135 gallons #215) as lube oil, 135 gallons of hydraulic oil, Incorporated of New Orleans, Louisiana.

The towing equipment consists two, Parker, 25 Ton Iowa winches. Outfitted 1.25(in) twelve strand line. Where she was renamed as the Helen Kolbe.

In 1989, the Iowa Marine Repair Corporation renamed the tug as the Linda B.

In 1991, the Iowa Marine Repair Corporation became RRS Transportation Incorporated of Morris, Illinois. Where the tug retained her name.

In 1991, she was acquired by McDonough Marine Services Incorporated of Metairie, Louisiana. Where the tug was renamed as the John G.

Re powered in 2004, she is driven by two, Cummins KTA19-M3 Diesel engines. With Twin Disc reduction gears, at a ratio of 7:1. Turning two, stainless steel, fixed pitch propellers. She is a twin screw towboat, rated at 1,200 horsepower.