That's incredible. I wonder when they started to decline, probably in the 70's I suppose. My dad was a very keen sailor, that's how I got my Broads baptism. Never followed in his footsteps though, my first hire was Crystal Light, a petrol Elysyan.
Apparently Swancraft had a yacht for hire - mid to late 80's - might be in an old Blakes brochure if anyone has one around that period