- Air Force: UK - Air Force
- Aircraft: Vickers 667 Valiant B1
- Registration: XD818
- Views: 895
- Location: Cosford (EGWC) , UK - England May 21, 2012
Only complete Valiant out of 107 built that survives at RAF Museum Cosford, which also has on display a Victor and a Vulcan. XD818 from No. 49 Sqn. dropped Britain's first live H-bomb in 1957 during Op. Grapple. It was converted to a tanker in 1961.