Harry George Armstrong

Harry George Armstrong (February 17, 1899 – February 5, 1983) was a major general in the United States Air Force, a physician, and an airman. He is widely recognized as a pioneer in the field of aviation medicine. The "Armstrong limit", the altitude above which water boils at the temperature of the human body, is named after him.

Harry George Armstrong
Major General Harry George Armstrong
BornFebruary 17, 1899 (1899-02-17)
De Smet, South Dakota
DiedFebruary 5, 1983 (1983-02-06) (aged 83)
Allegiance United States of America
Service/branch United States Air Force
Years of service1918–1919 (Marine Corps)
1925–1957 (Army/Air Force)
Rank Major general
Commands heldSurgeon General of the Air Force
Awards

Armstrong served in the Marines during World War I and the army and air force from 1930 to 1957. As director of the United States Aeromedical Research Laboratory, he applied his medical and aviation knowledge to the improvement of aircrew protection from temperature extremes and the lack of oxygen at high altitude.

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