By 1930, only 4% of all pilots were enlisted and new pilots were usually commissioned to meet the need for pilot-rated officers in Air Corps administrative and command billets.
Only 4% of all pilots were enlisted. This was by 1930. New pilots were usually commissioned to meet the need for pilot administrative and command billets. This was by 1930. New pilots were usually rated officers in Air Corps administrative and command billets. This was by 1930.