The aerodynamics is optimized for a large speed gap between short take-off, climb and approach under strong slopes and fast cruise.The structure is made of natural composite materials (wood, fibers and biosourced resins) to combine strength and lightness.The Zephyr distributed hydrogen engine is compatible with sustainable fuels.The design of the cockpit is centered on its users: the Head-Up Display offers incidence and trajectory control.The HOTAS controls let the pilot look outside, without having to reach for buttons or levers in the cockpit.The fully digital and connected avionics assist the pilot in all phases of the flight, from preparation to maintenance planning.