helicopter propeller stock videos & royalty-free footage Helicopter Flying Against Blue Clear Sky with Sunlight in Switzerland. Super slow motion shot of a drone take off and fly over a field of ...

Find Propeller Helicopter stock video, 4K footage, and other HD footage from iStock. Get higher quality Propeller Helicopter content, for less—All of our 4K video clips are the same price as HD. Video ...

The helicopter collided with passenger plane carrying 64 people and crew, crashing into the Potomar River late on Wednesday ...

Coaxial rotor systems, which feature two rotors stacked one above the other, are gaining attention in the field of rotorcraft design due to their unique aerodynamic properties and performance ...

Optical density measurements can also be performed on rapidly rotating propellers or rotors. Transient velocity field measurements at frequencies of up to one kilohertz are also possible. The primary ...

But thanks to a doctoral thesis he found, it’s also possible to control a traditional single-rotor helicopter by substituting flexible rotor hinges and precise motor speed control for the ...

Abstract: In order to explore security vulnerabilities in unmanned aerial vehicle (UAV) target tracking processes, a quad-rotor helicopter visual adversarial sample attack method based on Grad-CAM++ ...

the Russians in the Ka-52 helicopters - two counter-rotating, coaxial main rotors. However, the machine has one more rotor in the form of a pusher propeller located at the end of the fuselage.