Avro 624 Six

The Avro 624 Six was a three-engined British high-wing cabin airliner of the early 1930s, built by Avro after the success of the Avro 618 Ten. It was slightly smaller than the Ten and slightly larger than the Avro 619 Five, and it followed the Five's layout with two pilots seated side by side under dual controls and four passengers who had more headroom and a washroom at the rear. The first prototype, registered G-AAYR, was seen in flight testing at Woodford and Heston in May 1930. On the second aircraft the outer engines were moved from the wings to mountings at about mid-fuselage height and the one-piece cockpit window was split and sloped to shed rain. After a demonstration at the end of 1931 it was sold to Far East Aviation Ltd of China. A third Six was made in 1933 by converting a Five into a flying classroom for navigator training with Air Service Training Ltd, and in the first days of the Second World War it passed to No. 11 Air Observers Navigation School. No further aircraft were built.