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Adak Alaska USA 1943 stock footage and images

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Testing and inspection of Plane-Radial lifting screw and pitch variation of the de Bothezat helicopter.

View of rotor blades revolving on a vertical axis above the fuselage. Engineers working on Plane-Radical lifting screw and inspecting the pitch variation of De Bothezat helicopter during its development at McCook Field in Dayton Ohio, under a contract with Russian immigrant George de Bothezat issued by the U.S. Army Air Service. Engineers inspecting at fuselage. Professor George de Bothezat, the inventor of the helicopter, Lieutenant Colonel J.E.Fetchet and Major T.H.Bane discussing. Professor De Bothezat and four officers sitting on cart to which the screw is attached are lifted as the large rotor turns. The rotor went on to be used in the so called Jerome-de Bothezat Flying Octopus helicopter that featured four 6-bladed rotors.

Location: Dayton Ohio USA
Date: 1921, July 24
Duration: 3 min 43 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675039283
United States Army Air Service Officers inspecting the helicopter of inventor George de Bothezat

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.

Location: Dayton Ohio USA
Date: 1922
Duration: 4 min 47 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675039284
Early helicopter by American Leinweber brothers, and one made by Frenchman M. Douheret

Slate refers to Leinweber brothers helicopter in Chicago. View of their helicopter being moved out of a hangar in 1922. Closeup of helicopter controls being demonstrated. Next, a helicopter of M. Douheret, of France, is shown in 1919. Men stand nearby and watch its rotors turn in the breeze. Engine cylinders are clearly visible. Pilot sits in the machine and adjusts controls. Next he stands and starts engine. Suddenly, the running helicopter tips over and he runs for safety but returns to shut the engine down. In a second attempt, the pilot is again seen standing next to the machine, with its engine running. And, again, he must run to safety, as it tips over. This time it stops running by itself, and other men help him tip it back upright.

Location: Chicago Illinois USA
Date: 1922, November
Duration: 2 min 10 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675039285
Testing of De Bothezat helicopter in open fields.

Ground testing of the de Bothezat quadrotor helicopter at McCook Field, hangar in background. Helicopter contraption demonstrating lift and movement on airfield. Men hanging on to side of helicopter assisting with its early flight.

Location: Dayton Ohio USA
Date: 1922
Duration: 3 min 44 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675039289
Aircrafts stunting at All American Air Maneuvers.

Duke of Windsor at All American Air Maneuvers speaking into microphone of Radio station WQAM. Aircraft Grumman F4F-3s, Piper Cub J-3s and an old Ford Trimotor stunting. Uruguayan Waco Model D on ground and Thomas Boyd descending with wings and parachute.

Location: Miami Florida USA
Date: 1941
Duration: 60 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675039292
Allison liquid-cooled motors being fabricated and tested at Indianapolis plant.

Workers working at an Indianapolis plant where Allison liquid-cooled motors are being fabricated and tested for aircraft engines in World War 2. View of a rotating fan with the help of a motor.

Location: Indianapolis Indiana USA
Date: 1941
Duration: 41 sec
Sound: Yes
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675039296
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