Pictured as: the Delta Factor (Crosby Marine) Photo by: Clen Daigrepont

Built in 1982, by St. Johns Shipbuilding Incorporated of Palatka, Florida (hull #11) as the Avery J. Domangue for Gulf International Marine Incorporated of New Orleans, Louisiana.

In 1987, the tug was acquired by G and B Marine Incorporated of Houma, Louisiana. Where she was renamed as the Alton C. Gambarella.

In 1999, she was acquired by Double Eagle Marine Incorporated of New Iberia, Louisiana. Where the tug was renamed as the Navajo Eagle.

In 2001, the tug was acquired by the Delta Towing Company of Houma, Louisiana. Where the tug was renamed as the Delta Factor.

In 2011, the tug was acquired by the Crosby Marine Transportation Company of Golden Meadow, Louisiana. Where she retained her name.

In 2021, she was phased out of active service and was "laid up" at Port Fourchon, Louisiana.

In 2022, the tug was placed back into active service.

In 2024, she was acquired by C-Dive LLC. of Houma, Louisiana. Where the tug was renamed as the Sir Travis.

Powered by two, Detroit Diesel 16V149 TI diesel engines. With Falk 145 MRV-405 reduction gears, at a ratio of 5.9:0. Turning two, 72(in) by 77(in) by 7.5(in), stainless steel, fixed pitch propellers, mounted in kort nozzles. She is a twin screw tug, rated 4,200 horsepower.

The tug's electrical service is provided by two, 50kW generator sets. Driven by two, GM 4-71 diesel engines. Her capacities are 47,092 gallons of fuel, 7,000 gallons of potable water, and 990 gallons of lube oil.

Photo by: Bobby Pelas