Based on the pioneering Hawker P.1127 VTOL aircraft, the Kestrel was a development operated by the Tripartite Evaluation Squadron in 1965, based at RAF West Raynham and comprising crews from the UK, USA and West Germany, hence the unique markings seen here. They used nearby abandoned airfields for testing on unprepared runways and on grass. Nine were built before progress onto the fully-fledged Harrier GR.1. XS695 has been superbly restored and was placed on display at the start of 2014