Necon Air says it has decided to permanently retire all its fuel-guzzling Avro (BAE48) aircraft, which used to be the mainstay of its fleet. the airline will now rely entirely on ATR 42s and Beechcraft 1900s. Necon flies two ATRs (right) and one Beech. The company says it will add another to its fleet next month. The last of four Avros was ferried by Necon crew to Johannesburg this month.