he designed the RAF trainer, the Avro Tutor, a smaller version, the Avro Cadet and an enclosed version, the Avro Commodore. This was followed by the Avro Anson, used in World War II for training crews and as transport aircraft. In the late 1930s work began on a long-range bomber, the Avro Manchester, followed by the Avro Lancaster (Avro 683) of which 7,300 were built. In 1939, production of Avro aircraft was moved to a new factory at Greengate in Chadderton, owned by BAE Systems until its closure in 2012. In 1941, he designed a long-range transport, the Avro York and larger variants of the Lancaster, the Avro Lincoln and the Avro Lancastrian. After the war, he designed Britain's first pressurised airliner, the Avro Tudor, based around the Lancaster-derivative Avro Lincoln, though few were built and also the Avro Shackleton in 1946. His final involvement with Avro was overseeing the initial designs of the Avro Vulcan (Avro 698) from 1946. Author Harald Penrose describes Chadwick in "British Aviation" as "Artistic with unbounded enthusiasm and unsparing energy, Roy Chadwick was a great designer of intuitive diagnostic ability rather than a scientist, yet like all great masters was in step with the tide of knowledge and contemporary outlook." Chadwick was appointed a Commander of the Order of the British Empire in the 1943 Birthday Honours for his contribution to the design of the Lancaster and in particular for the adaptations he made to it in preparation for the low-level attacks on the German dams, during the Dam Busters raid Operation Chastise. The same year he was granted the Honorary Freedom of the City of London. Death Chadwick died on 23 August 1947 in a crash during the takeoff of the prototype Avro Tudor 2 G-AGSU from Woodford Aerodrome, in the vicinity of Shirfold Farm. The accident was due to an error in an overnight servicing in which the aileron cables were inadvertently crossed. His bust is displayed at the RAF Club in London, among other notable designers, and at the Chadwick Center at the International Bomber Command Center in Lincoln. Legacy The Chadwick Centre at the International Bomber Command Centre in Lincolnshire is named in honour of Chadwick. He is commemorated by a blue plaque on the surviving office building of the Avro factory at Greengate. and a blue plaque at 38 Chessel Avenue in Bitterne, Hampshire, where he lived from 1922