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The Ivy Mike hydrogen bomb design of 1952 (Sausage) was impractical as a deliverable weapon for the following reasons:

  • Size - it was 80 feet tall and 20 feet in diameter
  • Weight - it weighed 65 tons, more than any bomber could lift
  • Liquid fueled - it used cryogenic liquid Deuterium and Tritium, requiring a cryogenic refrigeration plant about a heavy as the bomb itself

By 1954 these problems had been solved and a liquid fueled bomb capable of being carried on a modified B-36 (Jughead, to be designated the MK-16) was ready for test in the Castle series. When the Castle Bravo shot (Shrimp) proved that dry hydrogen bombs were practical in small size and weight, the MK-16 test shot and development were canceled.

The Castle Romeo shot (Runt) tested a dry fueled design that could be carried on an unmodified B-36 (to be designated the MK-17). It was only about 15 feet long and 5 fee in diameter, weighing only about 20 tons. This became the first fielded fusion bomb.

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13y ago
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5mo ago

The first hydrogen bomb was impractical due to its massive size and weight, making it difficult to transport and deliver. Additionally, the design required a fission bomb to trigger the fusion reaction, adding to its complexity and cost.

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Q: Why was the first hydrogen bomb impractical?
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