While the USN's initial deployment of nuclear weapons focused on heavy airplanes to carry heavy bombs, elements within the Navy quickly saw the possibility of lighter bombs which could be carried by their existing aircraft. These weapons took several years to mature, with the first, the Mark 7, entering service in 1952. It weighed only 1,600 lbs, less than a fifth of the strategic weapons that proceeded it, and opened up the possibility of nuclear strikes by tactical aircraft. The Korean War had emphasized the fact that not all future wars would be all-out conflicts between the superpowers decided by strategic bombing, and the Navy was quick to respond.

An AD-6 Skyraider with a Mk 7 bomb
Two suitable aircraft were already in service, the venerable Douglas AD Skyraider and the jet-powered McDonnell F2H Banshee. Versions of both aircraft were modified to make them suitable for nuclear weapons carriage,1 and experimental squadrons began to develop tactics for delivery. This was trickier than it sounded. Penetration would probably be made at low level, particularly with the relatively slow Skyraider, and even if higher altitudes were acceptable, both aircraft lacked the bombardiers and equipment necessary for good accuracy with level bombing.2 So the attack would also have to be at low level, which made getting the delivery aircraft clear of the blast radius rather tricky. Read more...




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