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NUCLEAR EFFECTS OF NUCLEAR WEAPON DETONATIONS ON AIR CRAFT PART II below:
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This video describes the effects of nuclear weapon detonations on aircraft and how combat planners developed the scenarios for SAC (Strategic Air Command) missions. These studies also evaluated the effects to the aircraft and personnel if that aircraft was positioned at specific distances from a nuclear weapon when it was detonated. Explanations of thermal, blast, and radiation effects on the aircraft and personnel are discussed. Thermal light and heat radiate from the detonation in two phases. The first phase is instantaneous but causes flash blindness. Studies showed that personnel would have to be at least 80 nautical miles away when looking directly at the detonation to avoid even minor flash blindness. The second phase of thermal pulse is long and cumulative, and the heat energy builds up on the surface of the aircraft. Fortunately, the aircraft skin (i.e., outer layer) reflects most of the heat. The blast effect, which occurs after the thermal effect, is the shockwave. This is a two-fold effect of overpressure and gust.
Overpressure, which is the dominating effect at low altitudes, produces a wraparound crushing action, while gust, which is the dominating effect at medium and high altitudes, gives the aircraft a sharp jolt as it builds up on the lifting surfaces of the wing and the horizontal stabilizer. The only radiation effects of concern to delivery aircraft is the nuclear cloud because of the aircraft’s distance from the blast.
During Teapot and Redwing Operations, manned flights were made through atomic clouds at specified times after the burst. These flights were made only after effects testing data was analyzed from studies conducted during previous operations. Effects testing data on aircraft structures was conducted from Operations Crossroads through Hardtack. The video describes many of the tests and their findings from each successive operation, and how the knowledge gained was incorporated into later operations. In addition, SAC mission planners utilized this data in planning exercise mission scenarios.
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