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Tallboy or Bomb, Medium Capacity, 12,000 lb was an earthquake bomb developed by the British aeronautical engineer Barnes Wallis and used by the Royal Air Force (RAF) during the Second World War. [a] At 5 long tons (5.1 t), it could be carried only by a modified model of the Avro Lancaster heavy bomber. It proved to be effective against large ...
Sir Barnes Neville Wallis CBE FRS RDI FRAeS [3] (26 September 1887 – 30 October 1979) was an English engineer and inventor.He is best known for inventing the bouncing bomb used by the Royal Air Force in Operation Chastise (the "Dambusters" raid) to attack the dams of the Ruhr Valley during World War II.
The bomb was originally called Tallboy Large until the term Tallboy got into the press and the code name was replaced by "Grand Slam". The bomb was similar to a large version of the Tallboy bomb but a new design and closer to the size that its inventor, Barnes Wallis, had envisaged when he developed the idea of an earthquake bomb. It was the ...
Later in the war, Barnes Wallis made bombs based on the "earthquake bomb concept", such as the 6-ton Tallboy and then the 10-ton Grand Slam, although these were never dropped from more than about 25,000 feet (7.6 km). Even from this relatively low altitude, the earthquake bomb had the ability to disrupt German industry while causing minimum ...
The inventor of the first such bomb was the British engineer Barnes Wallis, whose "Upkeep" bouncing bomb was used in the RAF's Operation Chastise of May 1943 to bounce into German dams and explode underwater, with an effect similar to the underground detonation of the later Grand Slam and Tallboy earthquake bombs, both of which he also invented.
The bomb was one of a number dropped on the bunker during post-war testing [3] In World War II, the British designer Barnes Wallis, already famous for inventing the bouncing bomb, designed two bombs that would become the conceptual predecessors of modern bunker busters: the five tonne Tallboy and the ten tonne Grand Slam.
British scientist and inventor Barnes Wallis had been asked to produce a bomb that could destroy these bunkers. The resulting bomb weighed 12,000 pounds, and if dropped from 20,000 feet would penetrate the earth and cause a small scale earthquake, destroying the target. He called this bomb the Tallboy. To be effective the bombs had to be ...
B61 nuclear bomb. As early as 1944, the Barnes Wallis ... The destruction of targets such as the V3 battery at Mimoyecques was the first operational use of the Tallboy.