Sergeant pilot
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A sergeant pilot was a non-commissioned officer who had undergone flight training and was a qualified pilot in the air forces of several Commonwealth countries before, during and after World War II. I
Royal Air Force Flight Sergeant George Unwin, September 1940. He would later receive a commission and rise to the rank of Wing Commander
Staff sergeant
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Staff sergeant is a rank of non-commissioned officer used in the armed forces of many countries. It is also a police rank in some police services.
USAF Staff Sergeant