The first unit known by the British military as "No. 71 Squadron" was No. 4 Squadron, Australian Flying Corps (AFC), during the First World War. The squadron was formed at Point Cook, Victoria, Australia on 16 October 1916, after which it travelled to England. From 27 March 1917, while based at Castle Bromwich, it was designated "No. 71 Squadron" by the Royal Flying Corps, to avoid confusion with No. 4 Squadron, RFC. This name was never officially adopted by the Australian Imperial Force.
