Early Lynx/T23 trials showed that the aircraft didn't actually fit properly in the hangar! The Mactaggart Scott system "towing arm" length was such that the TR was officially too close to the door and likely to get clobbered as the door panted. Fortunately the tail fold still worked.
Then there was the T22 with 8in high raised winch boxes either side of where the SK tail wheel was supposed to be. They had to be faired in to allow safe SK ops.
And before that the Lynx conversion of a Leander where the hangar had been rebuilt with a Wasp layout (mainly)!
Engineers work to the nearest thou, dockyards to the nearest ship.