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.
At McCook Field in Dayton, Ohio, U.S. Army Air Service engineers inspecting Plane-Radial screw (helicopter lift mechanism) of George De Bothezat, a Russian immigrant working under contract with the Army. General Mason M. Patrick, Chief of the Air Service, inspects the radial screw. 1000 pounds of weight is lifted by lifting-rotor utilizing 35 horsepower. View of revolving rotor blade and officers in background. Brigadier General William Mitchell ( "Billy Mitchell" ) also inspects the work and discusses with George de Bothezat. Test flight for then Secretary of Commerce Herbert Hoover of the Jerome-de Bothezat Flying Octopus, equipped with four 6-bladed rotors. George de Bothezat in the pilot seat as the large helicopter lifts. It is held from going up very high and stabilized by men all around it. Another test with de Bothezat's assistant Mr. Eremeff in the pilot seat.
U.S. Army Air Service test pilot 1st Lieutenant Russell L. Maughan's dawn to dusk flight across the United States on June 23rd, 1924. Lt. Maughan in the cockpit of a Curtiiss P-1 Hawk airplane. He takes off from Mitchel Field in New York at dawn. The airplane in flight over Manhattan, New York City showing the East River with Williamsburg, Manhattan, and Brooklyn Bridges. The Curtiiss P-1 Hawk in flight over the Wall Street district, the Battery Park and the Hudson River. The aircraft arrives at McCook Field in Dayton, Ohio. Lt Maughan in the aircraft. A ground-gasoline truck and a fire truck near the airplane as it is refueled with the engine running. He climbs out of the cockpit briefly to allow a boy to look inside. Maughan takes off from McCook field. He is seen by his Curtiss P-1 Hawk, after arriving at Crissy Field in the Presidio, San Francisco, California.
The De Bothezat helicopter built by George de Bothezat. The quadrotor aircraft being tested at McCook Field in Dayton, Ohio, United States. The DeBothezat rotorcraft with four huge rotor blades lifts off, hovers and touches the ground several times.
Shows the rotor blade for the de Bothezat helicopter being tested during its development at the engineering division of McCook Field in Dayton,Ohio. Inventor George de Bothezat was hired by the U.S. Army Air Service in 1921 to produce a helicopter. This footage shows various tests being conducted: First a test of the " plane radical lifting screw ". The rotor is seen moving at high speed and lifting the front of the cart to which it is anchored. Second is a test showing the pitch variation mechanism. Next sequence show U.S. Army Lieutenant Colonel J.E. Fechet, Major T.H. Bane, and the inventor of the helicopter George deBothezat discussing with each other. De Bothezat points to the aircraft mechanism as he talks to the officers. De Bothezat and four Army officers sit in the helicopter to test the lift capability. The rotor rotates and lifts the front end of the cart with the 5 men seated in it, absorbing 30 horsepower.