Joby Aviation·US·eVTOL air-taxi

Joby S4.

Six-tilt-rotor powered-lift air taxi; FAA Stage 4 conformity complete as of March 2026.

Testing

Verified 2026-06-17

Technical subsystems

propulsion↗
6 electric tilt-propeller units (distributed electric propulsion); tilting rotors enable VTOL and cruise; liquid-cooled lithium-ion polymer battery packs (~300 Wh/kg) in 4 packs.
avionics↗
Fly-by-wire with triple-redundant flight control computers; fully redundant powertrain and avionics architecture.
structures↗
Carbon fiber composite airframe; 5-seat cabin (1 pilot + 4 pax).

AchievedOn trackSlippedPlannedCanceled