questionText: To ask the Secretary of State for Defence, what is the estimated lifetime cost of the Watchkeeper Remotely Piloted Vehicle; and when that vehicle will achieve Full Operational Capability.
answerText: The through life costs of the Watchkeeper Uncrewed Aircraft System (UAS) until the end of the current in-service contract will be £1.548 billion. The Watchkeeper UAS reached Full Operational Capability in 2018. 
heading: Watchkeeper WK450