Tempest is best read as a development programme rather than a fielded aircraft. Official programme sources describe a crewed stealth fighter planned for GCAP, supported by uncrewed platforms, next-generation weapons, networks, data sharing, and training rather than a single aircraft-only replacement.
Current phaseAdvanced concept, assessment, and detailed design work under an 18-month Edgewing contract announced on 2026-07-03.
Industrial structureEdgewing leads GCAP aircraft design and development, drawing on BAE Systems, Leonardo, and Mitsubishi Heavy Industries as national lead systems integrators.
Conflict-use limitNo direct source found for operational combat use; the aircraft remains in development with a 2035 target stated by programme sources.