Vertical Aerospace Receives Permit to Fly Approval Allowing Piloted Transition Testing to Proceed

Core Insights - Vertical Aerospace has received its Permit to Fly from the UK Civil Aviation Authority (CAA), allowing the company to commence 'Phase 4 – Transition' flight testing of its VX4 prototype, marking a significant milestone in its flight-test program [2][3][6] Flight Testing Phases - 'Phase 4 – Transition' is the final stage of the VX4 prototype flight test program, following the successful completion of Phases 1-3, which confirmed the aircraft's flying qualities [4][6] - Phase 1 involved tethered hover testing, completed on September 12, 2024, while Phase 2 focused on thrustborne take-off and landing, completed on February 4, 2025, and Phase 3 involved wingborne flight, completed on September 5, 2025 [8][13] Technical and Safety Aspects - The transition testing will demonstrate the VX4's ability to shift between hover (helicopter mode) and wingborne flight (airplane mode), a key feature of its tiltrotor capability [3][6] - Over 20,000 pages of safety and technical documentation were submitted to the CAA to support the Permit to Fly, ensuring compliance with the 200 Minimum Safe Aircraft requirements [5][6] Market Position and Future Plans - Vertical Aerospace is positioned as a leader in electric aviation, with a focus on creating a safer, cleaner, and quieter travel option through its VX4 eVTOL aircraft, which has zero operating emissions [9][11] - The company has approximately 1,500 pre-orders for the VX4 from customers across four continents, including major airlines such as American Airlines and Japan Airlines [11]