For more than 20 years, the U. S. Air Force used small nuclear warheads in air-to-air mode.
For a short time, the Air Force had thousands of nuclear-tipped weapons ready to defend the United Sta
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An Air Force surface-to-air missile had been under design by Boeing and the University of Michigan Aeronautical Research Center since 1950. It was tagged with an awkward name combining the first letters of one originating organization with an acronym for the other. Bomarc was launched vertically by a rocket booster and then propelled by two ramjet engines.
Designated IM-99 (for “interceptor missile”), Bomarc was designed to fly as far as 400 miles at up to 80,000 feet, while receiving guidance information transmitted from various ground points during most of its flight. As Bomarc approached the target, an onboard radar kicked in and concluded the interception.
The Joint Air Defense Board “unequivocally recommended” the deployment of atomic air defense weapons in 1953. The Air Force slated the Bomarc to receive a 6.5 kiloton nuclear warhead (about half the size of the bomb dropped on Hiroshima) once the advanced missile’s complex development challenges were addressed.
Concerned about what they thought was a growing vulnerability to Soviet bombers, especially after the Soviet Union detonated a thermonuclear device in 1953, American political leaders were unwilling to wait for Bomarc to be perfected and the Army’s shorter-range Nike Hercules missiles to be fielded. Consequently, the Joint Chiefs of Staff authorized the development of the Air Force’s Genie (later designated the AIR-2A) unguided air-to-air rocket. Built by Douglas Aircraft, this was a relatively simple weapon, carrying a 1.5-kiloton warhead, roughly one-ninth the size of the bomb dropped on Hiroshima. The Genie could be readied quickly and fitted to specially modified Northrop F-89 Scorpions.
An F-106 Delta Dart fires a Genie air-to-air missile over a range. (DOD photo)
The Air Force declared initial operational capability on Jan. 1, 1957, when a handful of rockets and 15 interceptors capable of carrying them were ready at Wurtsmith Air Force Base in northern Michigan and Hamilton Air Force Base outside of San Francisco. Weeks later, with President Dwight D. Eisenhower’s approval, the Pentagon announced it had "begun deployment of nuclear weapons within the United States for air defense purposes. Nuclear air defense weapons now have been developed which provide by far the most effective form of defense against air attack.
“It is essential to our national security that we incorporate these new weapons into our air defense system,” the announcement continued.