The surviving complete example of the type is a Defiant I, "N1671", on display as a night fighter at the Royal Air Force Museum in Cosford, Shropshire. It was one of four Defiants delivered to No. 307 Polish Night Fighter Squadron at RAF Kirton in Lindsey, Lincolnshire on 17 September 1940. It was passed to No. 153 Squadron at the end of October 1941 and 285 Sqn in 1942. In 1954, it was identified for storage as a historical aircraft and passed to the RAF Museum in 1971.