Rolls-Royce / Safran Adour is an active twin-spool, counter-rotating turbofan family for advanced trainers and light-combat aircraft. Official Rolls-Royce material places the family in the 5,000–8,000 lb thrust range and identifies FADEC-equipped Adour Mk951 technology; current support contracts cover Hawk trainers, while Adour variants power SEPECAT Jaguar, BAE Hawk, and Mitsubishi T-2/F-1 fleets. Exact Mk151/Mk811/Mk871/Mk951 variants and aircraft relationships remain separate identities.