Horse Guards Parade, London, UK. 6 July, 2018. RAF100, an exhibition of aircraft covering the RAF’s history, from WW1 and WW2 through to the modern age are displayed at Horse Guards Parade in central London, open to the public from 11.00am on 6th till 9th July 2018. A front line pilot of 29 Squadron based at RAF Coningsby, one of two Quick Reaction Alert (QRA) stations in the UK, takes part in the event. Credit: Malcolm Park/Alamy Live News.