With the rotor stopped, the blades are stowed in the sled test at Holloman. Credit: Bell Bell has completed sled tests of the stop/fold rotor concept for a high-speed vertical-takeoff-and-landing ...

For VTOL and hover operations, the drone's top and bottom bodywork opens up in a series of slats, exposing a greater percentage of the rotors' swept area to airflow and deriving maximum lift. Then, as ...

Bell's High-Speed Vertical Takeoff and Landing (HSVTOL) test article is at Holloman Air Force Base in New Mexico to test key features of its HSVTOL concept including prop-rotors that fold in-flight.

A screengrab of Bell's folding rotor test rig demonstrating rotor stop-and-stow for its coming high speed vertical takeoff and landing Xplane. Bell just released a video showing how its folding rotor ...

One of the most exciting evolving niches within unmanned aircraft systems and personal aerial vehicles is that of hybrid Vertical Take-Off and Landing (VTOL) aircraft, which provide a middle ground ...

Sikorsky’s rotor blown wing is a hybrid-electric flying wing with semi-articulated rotors for control in hover. Credit: Sikorsky Sikorsky is getting a second chance to build an advanced rotorcraft for ...

Elbit Systems' MAGNI is a fully autonomous and robust Multi-Rotor Vertical Take-Off and Landing (VTOL) Unmanned Aerial System (UAS) that is designed to significantly enhance the situational awareness ...

There’s a lot of ideas floating around the world. Some of these are even adapted to our modern world, as is the case with e-Vtols. From cars to helicopters and planes, designers around the world are ...