... the one that ran aground in eastham locks and maybe damaged something that wasn't evident at the time . Bent prop shaft springs to mind .
The Royal Iris has been out of service until a week ago after that incident.
Gary Evans is quick to use this unreliability to justify getting rid of these traditional style ferries so that he can replace them with the junk (pun intended) that they have planned for the future.
I'm sure complete refits with modern engines would be cheaper, the traditional appearance of the ferries is very important for the tourist teade that they focus on so much.