So far we've come up with three yards physically able to deal with smaller ships (Cammell Laird can cope with everything smaller than CVF, & has had Bays in dock) & one which can handle CVF, just in northern England. There's also Belfast, of course, so there's a choice of sites to refit CVFs, as with the rest, & even down south there are places which could do with the work & have facilities, e.g. Plymouth.