Vertical Aerospace Advances Hybrid-Electric Testing and Battery Production

About this update from Vertical Aerospace Ltd.

Vertical Aerospace (“Vertical” or “the Company”) (NYSE: EVTL), a global aerospace and technology company pioneering electric aviation, today announced two key programme milestones: the start of integration testing for its next-generation hybrid-electric propulsion system, and the production of the first all-electric Valo battery from its upgraded assembly line. This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260519226017/en/Vertical’s next-generation hybrid-electric propulsion system during testing on its Hybrid Propulsion Evaluation Rig (HYPER) at the Company’s Flight Test Centre These milestones represent continued progress across Vertical’s propulsion and energy systems programmes, both of which underpin the Company’s all-electric and future hybrid-electric aircraft roadmap. Stuart Simpson, CEO of Vertical Aerospace, said: “Hybrid capability complements our all-electric Valo platform and unlocks a broader range of civil and defence applications. At the same time, advancing our battery technology and manufacturing capability is critical to certification and scaling production. Together, these milestones demonstrate the strength and breadth of our technology platform.” Hybrid-electric system enters testing phase Vertical’s next-generation hybrid-electric propulsion system has begun testing on its dedicated Hybrid Propulsion Evaluation Rig (HYPER) at the Company’s Flight Test Centre at Cotswold Airport, marking a significant milestone after more than two years of development at the Vertical Energy Centre. The HYPER facility enables full system integration and validation of the hybrid powertrain, including the turbine, generator and associated electrical systems, alongside testing of control architecture, system response and fault scenarios ahead of ground and flight testing. The Company is working with several partners to integrate a sustainable aviation fuel (SAF)-compatible gas turbine with an electric generator, while leading development of system integration, control architecture and software. This turbogenerator will be integrated into a prototype hybrid-electric Valo aircraft for flight testing and demonstrations, while also supporting the development and validation of technologies for future hybrid variants of the aircraft. These hybrid-electric variants are expected to significantly expa...

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