The Defence Committee has published a comprehensive report on the Global Combat Air Programme (GCAP), emphasising the need for careful planning, robust structures, and tight cost control to meet its ambitious target of delivering a next-generation combat aircraft by 2035.
The Committee acknowledged GCAP as both a global and national programme with significant implications for UK security and economic prosperity. However, the report highlighted unresolved issues around resilience against emerging threats, integration with existing systems, and adaptability to technological advances over the aircraft’s lifespan.
Citing past challenges with multilateral defence programmes like the Eurofighter Typhoon, the report warned of potential delays and cost overruns. The Defence Committee stressed the importance of avoiding similar pitfalls, stating, “Decisions made at this early stage around partnerships, delivery structures, and workshare will be key to ensuring the aircraft arrives on time and to budget.”
Tight Cost Control and Transparent Funding
The Committee urged the Ministry of Defence (MOD) to maintain strict control over costs and ensure transparency to enable effective public and parliamentary scrutiny. It also called for multi-year funding to provide stability and bolster confidence among international partners.
“The Government should consider providing a multi-year funding arrangement to put the programme on a secure footing,” the report recommended.
Skilled Workforce Retention
Retention of the existing Typhoon workforce was identified as critical, with concerns over the dwindling production pipeline before Tempest production ramps up. The report stated, “GCAP offers a welcome opportunity to attract new talent into the UK’s combat air industry, but the focus cannot just be on recruitment of new apprentices.”
Partnership and Delivery Structures
Acknowledging the ambitious timescales, the Committee stressed the importance of empowering delivery structures to make timely decisions. It noted that delays caused by structural failings in the Typhoon programme must not be repeated.
“Meeting the 2035 target date is critical for Japan and the UK must sustain its commitment to empowering GCAP’s delivery organisations throughout the programme’s development,” the report concluded.
Flexibility for Future Technologies
The report emphasised the need to future-proof GCAP to accommodate advances in artificial intelligence, autonomous systems, and emerging threats like hypersonic weapons. “Sufficient flexibility must be built into GCAP to allow the main aircraft to operate alongside a range of future uncrewed solutions,” it recommended.
The report concluded with a clear warning: “Whilst progress to date has been positive, previous multilateral defence programmes have frequently seen costs spiral and delays pile up. GCAP will have to break the mould if it is to achieve its ambitious target date.”
The Defence Committee pledged to continue its scrutiny of the programme, ensuring it remains on track to deliver cutting-edge capabilities while fostering a skilled workforce and strengthening international partnerships.

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