RedactedNarrative: Unit 1 united from fuel dock at bohicket marina and began to drift with the outgoing tide. Operator attempted to use bow thrusters with no success, and was unable to throttle away from the bow of Unit 2. Unit 1 starboard side collided with the bow of unit 2. the force of the collision caused unit 2 to collide with unit 3 which was docked behind unit 2 at the marina.