The BAE Systems Tempest is a proposed sixth-generation fighter aircraft that is under development in the United Kingdom for the Royal Air Force (RAF). The aircraft is intended to enter service from 2035, gradually replacing the Eurofighter Typhoon. It is being developed as part of the Future Combat Air System (FCAS) programme by a consortium known as Team Tempest, which includes the Ministry of Defence, BAE Systems, Rolls-Royce, Leonardo, and MBDA UK. £2 billion is planned to be spent by the British government on the initial phase of the project up to 2025.