AIRLINES OF THE U.S.
For their high record of safety in air travel, with special recognition to Drs. Walter M. Boothby and W. Randolph Lovelace, II of the Mayo Foundation for Medical Education and Research and Captain Harry G. Armstrong of the U. S. Army Medical Corps at Wright Field, for their contribution to this safety record through their work in aviation medicine in general and pilot fatigue in particular.
HOWARD HUGHES AND HIS ASSOCIATES
For their epoch making round the world flight in 91 hours and 14 minutes.
U. S. ARMY AIR CORPS
For developing, equipping and flying the first successful pressure cabin airplane, the XC-35.
PAN AMERICAN AIRWAYS
For the establishment of the trans-Pacific airplane and the successful execution of extended overwater navigation in the regular operation thereof.
DONALD W. DOUGLAS AND HIS TECHNICAL AND PRODUCTION PERSONNEL
For outstanding twin-engined transport airplane.
CAPTAIN A. F. HEGENBERGER, U. S. ARMY AIR CORPS
For development of a successful blind landing system.
HAMILTON STANDARD PROPELLER COMPANY AND FRANK WALKER CALDWELL, CHIEF ENGINEER
For controllable pitch propeller.
GLENN L. MARTIN
For development of a high-speed weight-carrying airplane.
PACKARD MOTOR CAR COMPANY
For development of the diesel aircraft engine.
HAROLD F. PITCAIRN AND HIS ASSOCIATES
For development and application of the autogiro.