The University of Birmingham Air Squadron, commonly known as UBAS, is a squadron within the Royal Air Force established on 3 May 1941. It is based at RAF Cosford, Shropshire, and flies a fleet of six Grob Tutors. In 2009 the squadron upgraded the aircraft to the Grob Tutor EA which has an advanced avionics suite. The Squadron has four Flights, A, B, C and D; each with a student Flight Commander who holds the rank of Acting Pilot Officer and a Deputy who holds the rank of Officer Cadet. UBAS is also the parent squadron of 8 Air Experience Flight, who jointly fly UBAS' Tutor fleet.