Quote:
Originally Posted by JohnR
Out of my wheel house (bad pun) but the tanker is probably under its own power and the tug is attached by line in case something goes wrong on the tanker. If something went wrong there might not be enough time to make the evolution from the tanker in control to the tug. If lines are attached there is a chance.
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Could have been a CG safety precaution. These armed escorts are commonplace in EverettBoston Harbor.
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