 He designed the Avro Baby and in 1920, the Avro Aldershot, the world's largest single-engined bomber and variants of the Aldershot, the Avro Ava and the Avro Andover.In 1925 he designed an all-metal plane, the single-seater fighter Avro Avenger and in 1926, the Avro Avian in which Bert Hinkler flew the first solo flight from England to Australia in 1928.In 1928, he moved back to the Avro factory in Woodford, Greater Manchester, used today by BAE Systems.