October 30th 1961 – The Tsar Bomba, King of the Bombs, Царь-бомба or Big Ivan.
The blast yield was equal to that of a blast of 57,000,000 Tonnes of TNT or to put that into context: The weight of 270 Empire State Buildings worth of TNT. This makes the Tsar the most powerful nuclear device ever detonated in history. Think of the destruction at Hiroshima. The Tsar was 3800 times more powerful than Hiroshima.
The bomb’s weight was 27 tonnes, and its dimensions were: 8 meters (26ft) in length, and 2 meters (6.5ft) in diameter.
It was air-dropped, from a modified Tupolev Tu-95 Bear, and it used a nylon parachute to slow its decent to give the crew time to escape.
The bomb was dropped from an altitude of 34,500 feet AGL (10,500 meters), and it detonated a little over three minutes later at an altitude of 13,100 feet AGL (4,000 meters). In this time: The Tu-95, travelling at a ground speed of 480kts (552mph, 864kph), travelled into the safe zone (about 45km from ground zero) and was therefore 79km away from the blast.
