Did they used to have trouble with the one that worked out of harwich?
If I remember the first few times it left for the hook it used to flood Felixstowe beach and take all the deck chairs,tables and old dears out to sea with it?
Never been it myself,saw it a few times but its just so expensive to run with the amount of fuel it burns.
Locals called it the Wave Machine!
When its very slow or flat out it barely disturbs the water, but when it’s accelerating…oh lordy!