RACHAEL ALLEN | Foss Maritime, Seattle, Wash.

Rachael Allen is the fourth and final ASD-90 tugboat built by Nichols Brothers Boat Builders. It is the first z-drive tugboat in the United States with a Sea Machines autonomous command and control system.
  Rachael Allen is the fourth and final ASD-90 tugboat built by Nichols Brothers Boat Builders.
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