The Eurofighter Typhoon (Typhoon) was originally conceived in the 1980s during the Cold War to perform mainly as an air-to-air fighter. It is highly capable in this role. Changing operational requirements meant the partners are upgrading Typhoon to become a full multi-role fighter aircraft that can perform both air defence and ground attack missions by 2018. Eurofighter is a single-seat, twin-engine, agile combat aircraft which will be used in the air-to-air, air-to-ground and tactical reconnaissance roles. The design of Eurofighter Typhoon was optimised for air dominance performance with high instantaneous and sustained turn rates, and specific excess power. Special emphasis has been placed on low wing loading, high thrust to weight ratio, excellent all round vision and carefree handling.