The President of the United States of America, authorized by Act of Congress, July 2, 1926, takes pleasure in presenting the Distinguished Flying Cross to Major (Air Corps) Carl F. Greene, U.S. Army Air Corps, for extraordinary achievement while participating in aerial flights. Despite a history of failures and fatalities in connection with the developments in high level operations, Major Greene, with utter disregard of his personal safety, participated as technical observer and cabin pressure operator in the first successful test flights ever to be performed in a pressure cabin airplane. By demonstrating his confidence in the engineering features of the airplane for which he had been largely responsible and by his courage in sharing the risks of initial and subsequent test flights, Major Green aided materially in bringing to the United States Army Air Corps the distinction of first demonstrating practical high level airplane operation.