About: W81   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

The W81 went through several design iterations, starting with an enhanced radiation model, then a pure fission model, and finally was simply canceled in 1986 without ever being tested or produced. Characteristics are not known in detail, but the B61 it is derived from has a physics package (bomb core) of about 12 inch diameter with length of 32 inches, weighing around 300 pounds (see the W80, another B61 derived design). Available LASL images show a much shorter weapon, perhaps 12 by 16 to 18 inches, probably the final fission-only W81 concept, corresponding with the size of the B61 fission primary alone.

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  • W81
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  • The W81 went through several design iterations, starting with an enhanced radiation model, then a pure fission model, and finally was simply canceled in 1986 without ever being tested or produced. Characteristics are not known in detail, but the B61 it is derived from has a physics package (bomb core) of about 12 inch diameter with length of 32 inches, weighing around 300 pounds (see the W80, another B61 derived design). Available LASL images show a much shorter weapon, perhaps 12 by 16 to 18 inches, probably the final fission-only W81 concept, corresponding with the size of the B61 fission primary alone.
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abstract
  • The W81 went through several design iterations, starting with an enhanced radiation model, then a pure fission model, and finally was simply canceled in 1986 without ever being tested or produced. Characteristics are not known in detail, but the B61 it is derived from has a physics package (bomb core) of about 12 inch diameter with length of 32 inches, weighing around 300 pounds (see the W80, another B61 derived design). Available LASL images show a much shorter weapon, perhaps 12 by 16 to 18 inches, probably the final fission-only W81 concept, corresponding with the size of the B61 fission primary alone. The LASL image clearly shows the warhead taking up most but not all of the 13.5 inch SM-2 body diameter.
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