Photo by: Phil Gilston
Built in 1977, by Main Iron Works of Houma, Louisiana (hull #319) as the Mamo II Dillingham Tug and Barge.
The tug was later acquired by Foss Maritime where she was renamed as the Daniel Foss .
In 2006, the tug was reconfigured from a Voith cycloidal drive unit to a azimuthing stern drive configuration. Powered by three Caterpillar 3512 B diesel engines with two stern mounted Ulstein 900 NautiCAN "z-drives" with a third Ulstein 900H UHPN "z-drive" mounted forward for a rated 3,300 horsepower.