REVIEW OF EXISTING DATA ON THE INCIDENCE OF DECOMPRESSION ILLNESS IN PERSONNEL AT AND BELOW 30,000 FEET

Abstract : Pressurization of aircraft cockpits and cabins to a pressure altitude of 30,000 feet will result in the production of symptoms of decompression illness. The severity of the symptoms and hence the probability of incapacitation will be directly proportional to the amount of physical activity carried out by the individual occupying such a cabin or cockpit. Pressurization of aircraft cockpits and cabins to altitudes below 30,000 feet will progressively lower the incidence and severity of symptoms of decompression illness. It is unlikely that very severe symptoms will be encountered at altitudes below 23,000 feet in military aviation.