Hi
Having been based at Felixstowe for about 18 years, followed by 2 years at Harwich, I don't recall seeing any of the large ships without tugs in attendance only the Roro ships. But do they need them? With ships these days with massive engine power, bow & stern thrusters, it will make sense to use it, rather then paying for tugs.
As for your comment about the number of tugs in Felixstowe, I'am sure there are more then one of the larger tugs, but I will check to make sure.
The dock basin, I think, is due to be filled in shortly and this is where the tugs are berthed. Where will they go?
Regards
Karl
:-)