Programme overview
- Sixth-generation fighter aircraft programme led by the UK, Italy, and Japan
- UK aircraft designation: Tempest (replacing the RAF’s Eurofighter Typhoon fleet)
- Formed from the merger of the UK-Italy Tempest initiative and Japan’s F-X programme (announced December 2022)
- First aircraft targeted in service: 2035
- Programme managed through the GCAP International Agency (GCIA), headquartered at Green Park, Reading
- Prime industrial partners: BAE Systems, Leonardo (Italy and UK), Mitsubishi Heavy Industries, Rolls-Royce, MBDA, and Japanese defence contractors
Programme status (2026)
GCAP has moved decisively from concept into funded development over the past twelve months.
In July 2026, the MoD awarded the £4.6bn Edgewing contract to a joint venture of BAE Systems, Leonardo, and Mitsubishi Heavy Industries, covering the System Development and Delivery phase – the largest single GCAP contract to date and a clear signal that the programme has survived the political and fiscal scrutiny that killed its rivals. The Tempest Technology Demonstrator aircraft is now approximately 75% complete and on track to fly before the end of the decade.
The GCAP International Agency, the trilateral body that governs the programme, is now fully operational from its Reading headquarters, providing the governance structure needed to manage a programme of this complexity across three sovereign defence customers.
Planned capabilities
- Advanced stealth with reduced radar and infrared signature
- AI-enabled data processing and decision support, reducing pilot cognitive load in high-threat environments
- Ability to operate as a crewed fighter or as a command node directing uncrewed systems (“loyal wingmen”)
- Advanced electronic warfare, sensor fusion, and electronic attack
- Open digital architecture designed for rapid software upgrades throughout a decades-long service life
- Multi-domain integration with space, cyber, land, and sea platforms
The Storm Fighter connection
GCAP is also an exercise in future-proofing. The July 2026 Defence Investment Plan named the Storm Fighter as the UK’s collaborative combat aircraft (CCA) – an autonomous uncrewed platform designed to operate alongside GCAP in combat. Where GCAP provides the crewed command node, Storm Fighter provides the expendable, high-risk reach. The two programmes are designed as a system, and the RAF’s future air combat capability should be understood in those terms rather than as a single platform.
Industrial impact
- UK prime: BAE Systems (Warton, Lancashire), supported by Rolls-Royce (engines), Leonardo UK (sensors and electronics at Edinburgh), MBDA UK (weapons)
- Italy: Leonardo Italy and national industrial partners
- Japan: Mitsubishi Heavy Industries and Japanese defence contractors
- Programme already supports approximately 3,500 UK jobs and 1,000 apprenticeships, with significant growth projected through the 2030s as the programme scales toward production
- Export production, if secured, would further extend the industrial benefit beyond the three partner nations
Strategic position
GCAP’s strategic importance changed materially in June 2026 when Germany withdrew from the Franco-German Future Combat Air System (FCAS) programme – a separate, rival European sixth-generation fighter effort. Germany’s exit has left FCAS in serious doubt and GCAP as effectively the only credible Western sixth-generation fighter programme with genuine export potential. Countries seeking a non-US next-generation combat aircraft now have limited alternatives, and Saudi Arabia is reported to be in early discussions about potential participation or purchase.
This competitive dynamic matters for the programme’s economics. Export orders spread development costs across more units, reducing the per-aircraft cost to the three partner nations and improving the industrial case for the programme over the long term.
Relationship to Typhoon
The Typhoon is the platform GCAP is designed to replace. The June 2026 DIP confirmed a £5.4bn full-fleet Typhoon upgrade covering all 107 Tranche 2 and 3 aircraft, extending the fleet’s service life into the 2040s. This provides the RAF with a credible capability bridge while GCAP reaches operational status, and the industrial expertise accumulated at BAE, Rolls-Royce, Leonardo UK, and MBDA feeds directly into GCAP development. The two programmes are complementary, not competing.
Key dates
- 2018: Tempest concept unveiled at Farnborough
- 2022: UK-Italy-Japan partnership announced; programmes merged into GCAP
- 2025: GCAP International Agency established at Reading
- July 2026: £4.6bn Edgewing System Development and Delivery contract awarded
- Late 2020s: Tempest Technology Demonstrator first flight (targeted)
- 2035: First aircraft targeted in service
