 The first F-35 aircraft arrived at RAF Fairford in Gloucestershire on 29 June 2016 after a Transatlantic crossing involving air to air refuelling.On 5 October 2015, it was announced that the Scavenger programme had been replaced by "Protector", a new requirement for at least 20 systems.On 7 October 2015, it was revealed that Protector will be a Certifiable derivative of the MQ-9B SkyGuardian with enhanced range and endurance.