I worked on weapon release gear in the 1950s and 60s.
Remember that even little things like a Wasp or a Lynx could carry a nuclear depth bomb.
We had mechaised safety pins in our release units for "special weapons" the word nuclear was hardly ever used, operated by a special swith, wirelocked, only to be unlocked by special codeword, , the US has solenoids to remove safety pins in flight, but could not then put it back.
Last edited by Exnomad; 30th Jan 2016 at 10:39.