Largest Underground Nuclear Testing Project Cannikin 5 Megatons

This video reviews Project CANNIKIN, a nuclear test conducted on Amchitka Island, Alaska, at11:00 a. m., Bering Standard Time, on November 6, 1971. CANNIKIN, a slightly lessthanfivemegaton device, was the largest underground nuclear test conducted in the United States. CANNIKIN was conducted to proof test a warhead for the Spartan missile, a Safeguard Ballistic Missile Defense Program. The video shows the nuclear device and instrumentation canister being lowered into the shaft, detonation sequences, and tes