Lead tug was Strait Raven, operated by Superport Marine Services Ltd of Port Hawksbury. A 455 bhp twin screw vessel, it was built by Superport at their own yard in 2013.
It was towing the barge YRG-60, a fueling barge used in the naval dockyard.. It in turn was connected by towline to YDG-2 a degaussing barge.
At the end of the procession was the McKeil Marine tug Dover Spirit, with a line to its bow.
I saw Dover Spirit in Quebec during the summer ( see Tugfax August 29 ) for the first time under its new name. It was previously called Kaliutik when it was built in 1998 by Dovercraft Marine. It is a two screw 550 bhp tug.
I did note that YDG-2 was towing stern first, so I suspect that when the tow reaches the harbour limits Dover Spirit will take over the tow of YDG-2 alone.