Eve Air Mobility has completed the hover and low-speed flights block in the flight test campaign of its full-scale engineering prototype, generating high-fidelity data as the program progresses toward transition flight testing.
The milestone reflects the company’s disciplined building-block approach, which expands the flight envelope step-by-step and validates models, control laws, and aircraft behavior against real-world data before moving into more complex tests. Each completed block strengthens the technical foundation for the next, tightening the correlation between simulation predictions and flight behavior.
Across 59 flights, the aircraft demonstrated stable hover performance and predictable handling through progressively more demanding maneuvers. The engineering team first completed a low-speed input phase below 15 knots to validate control laws, downwash effects, thermal behavior, and the propulsion model. Testing then expanded to approximately 20 knots of ground speed, including simultaneous four-axis maneuvers to further validate aerodynamic and load models, supporting progression to higher speeds, a broader envelope, and larger control deflections.
Johann Bordais, CEO of Eve, commented, “Closing this phase validates the discipline behind our flight test strategy. Across 59 flights, we confirmed stable hover performance and predictable control behavior within the envelope, while expanding our understanding of loads, aerodynamics, propulsion and energy management, key foundations for the transition phase and the certification path ahead with the conforming prototypes.”
Notable milestones from this phase include the execution of more than 100 flight test points alongside the first demonstrations of autoland and the simplified fly-by-wire mode, which serves as a secondary layer of the fly-by-wire system that is activated when the normal mode is unavailable. The prototype aircraft reached 215 feet above ground level and achieved a maximum flight duration of 3 minutes and 48 seconds. Throughout the testing process, the aircraft showed consistent behavior under simultaneous four-axis inputs. Recorded noise levels remained in line with expectations, while propulsion and battery performance exceeded anticipation.
Marcelo Basile, Head of Tests of Eve, added, “Completing hover and low‑speed testing gives us high‑confidence data to validate and refine our aerodynamic, propulsion and load models. That model correlation is what enables disciplined envelope expansion. With planned ground tests next, we will be ready to begin transition flights, in which we validate the lifter-pusher synchronization before moving on to the cruise phase.”
Over the coming weeks, the engineering prototype will conduct planned ground tests in preparation for the transition flights block, which is expected to begin in summer 2026. This upcoming transition phase is designed to further strengthen the development of the final advanced air mobility aircraft by expanding the envelope and validating performance as the program advances toward wingborne flight.
