
Vertical Aerospace expects it will need at least an additional 12 months to certify its VX-4 eVTOL. In a letter to shareholders marking the end of the first quarter, the UK-based public company said a review of the program timeline has resulted in a decision by the management team to target certification by late 2026. Vertical previously indicated the four-passenger vehicle could be approved in 2025.
The letter summarized ongoing work with air safety regulators in the UK, Europe, the U.S., and Japan, indicating that gaps in regulatory requirements partly explain the need to take more time. “While we apply both new and already-proven technology to these novel aircraft, we do not have a rulebook to follow that sets the highest standards of safety—the same as large-transport-category airplanes,” they stated. “We believe this is necessary to win the trust of passengers.”