|The strange 'black box' being towed by MTS Victory.|
I took a video clip of the tug and tow riding out the rough weather off Maidencombe this morning:
The UK flagged tug MTS Victory with tow arrived in Lyme Bay from Rotterdam on the 27th November and has been prescribing a series of circles across the bay ever since. 'Drift sheltering', as it is termed, is to ensure that the towline does not come under too much pressure.
The 'black box' is in fact a dry dock gate which is in transit to Devonport Dockyard at Plymouth - so mystery solved.