I have lots of stories, but the Belfast was one of those aircraft I prefer to forget. It was rumoured around Brize Line Servicing Squadron (mostly among the VC10 specialists) that the Belfast was built in two halfs that were joined up mid-production. The front half was built by Catholics and the rear half was built by Protestants and the clever trick was to get both parts working together at the same time.
An example: Two main batteries connected in parallel. A spare provided just in case. The mains are changed once every three months. The spare, not being charged in situ, is changed monthly. To change the spare you have to remove both the mains for access...