Pilots on QRA duty are at immediate readiness twenty-four hours a day fully dressed in the Aircrew Ready Room, which are next to the hangars (a hardened aircraft shelter known informally as Q-sheds) which houses the interceptor aircraft, since 2007 the Eurofighter Typhoon.
Military radar in the UK is controlled by the UK Air Surveillance and Control System (ASACS),[REF] looked after by ASACS Force Command [REF].