1. Aircraft. Outline of policy of War and Navy departments for release of aircraft, aircraft engines, and items of aircraft equipment and accessories for export and domestic sale and for release of information and data pertinent to articles on which release is required, June 13, 1938: approved by acting Secretary of War, July 22, 1938, approved by acting Secretary of Navy, July 25, 1938. Bookmark Corporate/Agency Authors: Aeronautical Board and War Department Publisher: Aeronautical Board Date: 1938 SuDoc number: W 1.2:At 7/2