Ten Martin B-10 bombers taxi and take off from Bolling Field, Washington, DC, for mapping flight to Alaska, and back. View of Army Air Corps Lieutenant Colonel Henry H. Arnold, who commands the operation. The ten Martin B-10 bombers in formation, flying overhead. Scene changes to their return, as B-10 bombers are seen flying over the Potomac River at Washington, DC. Colonel Arnold, standing with some of his pilots, accepts the MacKay Trophy from Secretary of War George Dern for their accomplishment.
A newsreel titled 'Wingless airplane' shows a wingless auto gyro (early helicopter) flying over Capitol building in Washington D.C.,United States. Auto gyro lands and the pilot meets an Army officer. The plane again lifts off and flies away.
President Roosevelt cancels all aerial mail contracts. The Government orders the Army to take over the job. U.S. Army Planes standing at the Army flying fields. Activities at the Army flying fields. Men handling mail packets. U.S. Army Planes take off. Planes in flight.
The Washington Monument in Washington DC, United States. A frame scaffold structure around the Washington Monument to give access for workers cleaning the historical building. Trained professional workers clean the monument and regrout between stones. Workers examine and measure the aluminum cap at the top of the Washington Monument. Views of the surrounding National Mall area from the scaffold around the Washington Monument, including views toward the Capitol, the White House, and the Navy Buildings, munitions buildings, National Museum of Natural History, Smithsonian Institution. View from a moving elevator descending the scaffolding.
Japanese Ambassador to the United States Hiroshi Saito officially declares that Japan would no longer abide by the terms of the Washington Naval Treaty of 1922. Hiroshi Saito steps from his car and enters the Old Executive Office building (Pennsylvania Avenue and 17th Street, NW Washington, D.C., United States) in Washington DC. Exterior view of Executive Office building. He descends the steps of the building and enters his car.
U.S. Secretary of War George H. Dern addresses officials in Washington. Dern addresses Newton Baker's committee. He talks about air mail policies and the survey of U.S. Army Air Corps.