Airfix 1:48 Avro Anson Mk.1 Kit A09191AAirfix 1: 48 Avro Anson Mk. 1 Kit A09191A Only one model kit included in box but colour scheme suggestions and decals included for 3 alternative finishes. When it entered service with No. 48 Squadron at RAF Manston in March 1936, the Avro Anson became the first monoplane type to achieve squadron service status and was also the first RAF aircraft to feature a retractable undercarriage. The RAF Anson Mk. I was equipped with a fixed forward firing . 303