Mark 27 nuclear bomb
Mark 27 nuclear bomb From Wikipedia, the free encyclopedia Jump to navigation Jump to search This article does not cite any sources . Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. ( September 2014 ) (Learn how and when to remove this template message) The Mark 27 nuclear bomb and closely related W27 warhead were two American thermonuclear bomb designs from the late 1950s. The Mark 27 was designed by the University of California Radiation Laboratory (UCRL; now Lawrence Livermore National Laboratory) starting in the mid-1950s. The Mark 27 and W27 were produced from 1958; both were retired by 1965. The basic design concept was competing with the Los Alamos Scientific Laboratory (LASL; now Los Alamos National Laboratory) design that would become the Mark 28 / B28 nuclear bomb and W28 warhead. The Mark 27 was roughly twice as heavy as the Mark W28 family and had a...