 Avro 533 Manchester

The Avro 533 Manchester was a First World War-era twin-engine biplane photo-reconnaissance and bomber aircraft designed and manufactured by Avro.Designed as a twin-engine bomber and photo-reconnaissance aircraft, the Avro 533 was a development of the earlier 523 and 529A.Originally designated the Avro 529B, the new 320 hp (240 kW) ABC Dragonfly I nine-cylinder engine was specified, but with a redesign in July 1918, the type number was subsequently changed to Avro 533.