General Mason M. Patrick,Chief of Air Service inspects De Bothezat helicopter during its development at engineering division of McCook field in Dayton, Ohio. Brigadier General William "Billy" Mitchell also takes a look at the helicopter. Russian immigrant George De Bothezat, the inventor of the helicopter, speaks to the officers. Two lift tests are shown with one lifting 1000 pounds and the other lifting 3500 pounds at 160 horsepower.
Secretary of Commerce Herbert Hoover (not pictured) inspects De Bothezat helicopter at engineering division of McCook field in Dayton,Ohio. Dr. George De Bothezat sits in the pilot seat and lifts off in the helicopter sometimes called the Jerome-de Bothezat Flying Octopus, with four rotors, built for the U.S. Army Air Service. It hovers a few inches above the ground. Men stand on all sides of it to help stabilize it. Assistant to George de Bothezat, Mr. Eremeff pilots the helicopter in another test.
Development of air power. The National Aeronautics Association (NAA) annual races in Dayton, Ohio. A small aircraft flying at high speed around pylons at an air show. A large crowd in the grandstands to watch the races.
The Army Air Force Institute in Wright Field, Dayton, Ohio. Students attend the classes. Exteriors of experimental laboratories at Wright Field. Student observes laboratory tests of materials. Various equipment in laboratory. Procurement officers in the factory. 'Operations Altitude 300' building at Wright Field. A plane taxis and takes off.
Five YG-1B early helicopters are pushed out of hangar by ground crewmen. Ground crewmen lock rotor blades into position for flight. Three YG-1B auto-gyros taking off from a grass field at Wright-Patterson Air Force Base in Dayton, Ohio. Views of five YG-1Bs in flight, then two auto-gyros land.
The Army Air Forces demonstrate a new method of towing gliders in Dayton Ohio. A tow-bar is used in place of the longer cable. A man attaching tow-bar to glider. Plane takes off towing the glider.
CRITICALPAST.COM: About Us | Contact Us | FAQs - How to Order | License Agreement | My Account | My Lightboxes | Shopping Cart | Advanced Search | Featured Collections | Website Terms & Conditions | Privacy Policy | Links ©2024 CriticalPast LLC.
License Agreement |
Terms & Conditions |
Privacy Policy
©2024 CriticalPast LLC.