The 581 was replaced in production by the metal fuselage Avro 616 Avian IVM and Sports Avian variant in 1929. They were produced in small numbers in the UK, Canada and the USA.
Only 16 of the Mk.IVM Sports Avians were built.
Two aircraft, named Southern Cross Junior and Minor, were used by Kingsford Smith for the UK-Australia-UK attempts during 1930-31.
Avro 616 Avian IVM
Engine: Cirrus Hermes, 108 hp.