autoevolution 10 May 2021, 14:09 UTC · by Sea Machines Robotics is set to implement their SM300 autonomous control-and-command system on what will become the first autonomous U.S.-Flag harbor tug. Made by Foss Maritime, the Rachael Allen tugboat has recently been constructed and will be unveiled by the end of this month. 1 photo When it’s delivered, Rachael Allen will probably look like a regular harbor tug with a 90-ton bollard pull. But, what’s special about the Seattle-based company’s new boat is that it will feature an autonomous system, making it a premiere for the tug industry. It’s also a premiere for Sea Machines, who is installing the SM300 on a boat that’s over 5,000 hp, for the first time.