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Remaining VX4 Spending Expected to Stay Below $700 Million, Says Official

Remaining VX4 Spending Expected to Stay Below $700 Million, Says Official
Vertical Aerospace anticipates that the total expenditure required to bring its VX4 electric air taxi to market by 2028 will remain under $700 million, according to Chief Executive Stuart Simpson. Addressing investors during the company’s capital markets day on 17 September, Simpson underscored Vertical’s conservative financial strategy and steady progress in the development program, positioning the UK-based firm as a disciplined and methodical competitor within the rapidly evolving electric vertical take-off and landing (eVTOL) industry.
Financial Discipline and Development Progress
Simpson revealed that approximately 75% of the VX4’s costs are already contracted or quoted, providing a high degree of certainty regarding the remaining financial commitments. He stated, “The amount we need to bring the VX4 to market is guaranteed to be less than $700 million,” acknowledging that while this figure is substantial, it remains modest compared to the annual spending of many of Vertical’s peers. This approach contrasts sharply with that of US-based rivals such as Archer Aviation and Joby Aviation, which have secured hundreds of millions in investment and are targeting early operational launches in regions like the Middle East.
Vertical’s most recent funding round raised $60 million, extending its cash runway until mid-2026. Despite the comparatively modest capital, Simpson expressed confidence in the company’s engineering-led strategy and extensive aerospace expertise, which he identified as key differentiators. “We are the only company in the sector with a clear path to certification,” he asserted, highlighting Vertical’s close collaboration with UK and European regulators. “We know what we are doing. We are the only ones doing this in a rigorous, engineering-led way.”
Certification and Flight Testing Milestones
Flight testing of the VX4 continues at Vertical’s base in Cotswold Airport, southwest England. The aircraft is scheduled to complete a critical transition flight—a pivotal “20 seconds” that Simpson describes as a “major technology and certification unlock”—before the end of the year. Successfully achieving this milestone is expected to accelerate the validation process and maintain the program’s timeline for certification.
Following a comprehensive strategic review after Simpson’s appointment last year, Vertical adjusted its certification target to 2028 as part of its FlightPath 2030 plan. This roadmap outlines a measured production ramp-up and revised financial projections, reflecting a cautious approach to market entry. Simpson emphasized that certifying the VX4 to the standards of the UK Civil Aviation Authority (CAA) and the European Union Aviation Safety Agency (EASA) will reduce the risk of costly redesigns and ensure the aircraft’s global operability from 2028 onward. “We are doing every single moment of flying to a higher barrier than anyone else in the world,” he noted, stressing that Vertical does not depend on early adoption in markets such as the Middle East to achieve commercial success.
With ongoing flight tests and a clearly defined certification pathway, Vertical Aerospace aims to deliver a globally compliant eVTOL aircraft while maintaining disciplined financial management, distinguishing itself from larger, better-funded competitors in the sector.

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