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Joby Sees S4-T Hybrid-Electric eVTOL As Dual Use

Graham Warwick November 13, 2025
Joby Aviation Caption – The uncrewed turbine-hybrid S4-T demonstrator made its first flight Nov. 7 at Joby’ Marina, California, plant

The uncrewed turbine-hybrid S4-T demonstrator made its first flight Nov. 7 at Joby’ Marina, California, plant.

Credit: Joby Aviation
Joby Aviation plans to bring hybrid-electric propulsion to its commercial air taxis following the first flight of a demonstrator aircraft aimed initially at military applications. The aircraft, a modified preproduction S4 electric vertical-takeoff-and-landing (VTOL) aircraft designated the S4-T...
Graham Warwick

Graham leads Aviation Week's coverage of technology, focusing on engineering and technology across the aerospace industry, with a special focus on identifying technologies of strategic importance to aviation, aerospace and defense.

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