Vulcans operated in the annual "Giant Voice" USAF bombing competition. They were at a disadvantage in "Red Flag" training exercises,when the white undersurfaces exposed during tight turns revealed their position to fighter aircraft. In Sept 1979 the first Vulcan XM657 was resprayed in the new overall camouflage scheme. The undersides were a mirror image of the topsides.
The scheme was called "tactical low visibility".