The Thames Valley and Chilterns air ambulance G-HBOB takes a patient to hospital from Thatcham, Berkshire. The helicopter is a red and yellow liveried EC135 Eurocopter, G-HBOB, (G represents Great Britain,H represents Helicopter, and BOB representing the three counties it serves - Berkshire, Oxfordshire and Buckinghamshire) and is based at RAF Benson, Oxfordshire. Engines are 2 x TURBOMECA ARRIUS 2B2s.
