operation  with the film so the set designers were forced to reconstruct the  cockpit of the B52 bomber from one single photograph in their  possession that had been carelessly printed in a British flying  magazine and comparing it to the cockpit of the B29 Superfortress,  and relating it to the geometry of the B52s fuselage. (In the early  60s, the B52 represented cutting edge technology and access to it  was a matter of national security.) When some American Air Force  personnel were invited to view the films reconstruction of the B52  cockpit (which had cost $100,000 to construct), they were astounded  to see that it was almost note perfect, so much so that Kubrick  feared that Ken Adam (qv)s production design team had resorted to  illegal moves and could be under investigation from the FBI.