Oh, the irony
Shades of the jet-powered model F-14 crash video that is widely available on Youtube. It's ironic that it would be a Vickers Valiant, given that it was withdrawn from service due to fatigue. I quote from Greg Goebel's excellent "Air Vectors":
"Following a series of accidents, inspections showed that the main wing spars of the Valiants in operation were suffering from excessive fatigue. There was hope that the (tanker versions), which didn't generally operate at low level, might be in better condition, but that didn't prove to be the case. Replacing the wing spars was deemed too expensive for an aircraft that was going out of service in 1968 anyway, and had been built as a interim solution to begin with. The Valiant force was grounded, to be removed from service in 1965."