Here are some photos I took of the Avro 504K replica on display at the NMoUSAF in Dayton, OH. Production during the war totaled 8,970 and continued for almost 20 years, making it the most-produced aircraft of any kind that served in the First World War, in any military capacity, during that conflict. More than 10,000 were built from 1913 until production ended in 1932. Later in 2018 I was able to revisit Dayton and photographed an Avro 504 being worked on in the restoration hangar.