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Title:OPERATION GRAPPLE X EXPLOSION 1957 [Main Title]
Film Number:AWE 31
Other titles:BRITAIN'S ATOMIC WEAPONS RESEARCH PROGRAMME COLLECTION [Allocated Series Title]
Summary: Trials film with commentary featuring the detonation of Operation Grapple X on 8 November 1957 at Christmas Island in the South Pacific. Remotely controlled cameras at 'A' and 'B' sites record the detonation of the weapon, the resulting fireball, and the subsequent mushroom cloud that develops. The impact of the detonation on buildings at 'C' site is also shown.