Technology 23 July 2026 8 min
Vertical Aerospace's Valo: The UK's Homegrown eVTOL Programme
Transition flight milestones, the revised certification timeline, and what Bristol-built Valo means for London's first air taxi services.
Vertical Aerospace is the UK's most significant eVTOL manufacturer. Its VX4 prototype has completed two-way transition — the wingborne-to-thrustborne handover that is the defining technical hurdle for tilt-configuration aircraft.
Milestone versus schedule
Technical progress has not prevented schedule pressure: the company has publicly rebaselined Valo certification, a reminder that certification timelines in this category compress slowly.
What it means for London
A domestically certified airframe with a UK operator partner is the strongest possible route to sustained London service, even if the start date is later than early forecasts implied.
Sources & further reading
- Aviation Week — Vertical Aerospace completes two-way transition flight of VX4
- FlightGlobal — Vertical Aerospace confirms new delay to Valo certification
- FlightGlobal — Bristow details plans for Vertical Valo deployment in the UK
- EASA — SC-VTOL-01 special condition for small-category VTOL aircraft
- UK CAA — eVTOL operations a step closer in the UK