Sikorsky's hybrid-electric VTOL demo informs future missions
Sikorsky, a Lockheed Martin company, is producing a Hybrid-Electric Demonstrator (HEX), a fully-autonomous hybrid-electric vertical-take-off-and-landing (eVTOL) prototype. With a maximum gross weight of more than 7,000-pounds, the uncrewed aircraft will serve as a flying test-bed to evaluate large aircraft design, novel propulsion systems and control architectures for sustained hover, and ranges