http://www.fantastic-plastic.com/vickers-type-c-giant-bomber-project-by-fantastic-plastic.html
Fantastic Plastic appear to have a Vickers Type C super heavy bomber in 1/144 scale in development for them by Anigrand. This is effectively the British equivalent of the B-36 Peacemaker or B-29 Super Fortress with its 6 engines and 100 ton payoad