In 1915, Brush Electrical was one of a number of companies outside the established aviation contractors selected by the Royal Navy to receive orders for aircraft to meet the expanding needs of the Royal Naval Air Service. Brush completed 650 aircraft by the end of 1919, including 400 Avro 504s and 142 Short Type 184s. It also built de Havilland Dragon Rapides during the Second World War, taking over production from de Havilland in 1943 and building 346 aircraft (47.5% of the total number produced) by the time production ended in 1945.[6][7]