First announced at Heli-Expo 2023, the Hybrid-Electric Demonstrator (HEX), is a fully-autonomous hybrid-electric vertical-take-off-and-landing (eVTOL) prototype.
HEX will be an uncrewed aircraft with a maximum gross weight of over 7,000 lbs ( 3100 kg ) and a range greater than 500 nautical miles ( 900 km )
At Heli-Expo 2024, Sikorsky unveiled its plan to build, test and fly a hybrid-electric vertical takeoff and landing demonstrator (HEX / VTOL) with a tilt-wing configuration