1st of type on AC !
The Avro Model 621 was designed by Roy Chadwick as an Avro private venture metal replacement for the Avro 504. Conceived as a light initial pilot trainer, the biplane design featured heavily staggered equal span, single-bay wings; the construction was based on steel tubing (with some wooden components in the wing ribs) with doped linen covering. A conventional, fixed divided main undercarriage with tail skid was used in all but the latest aircraft, which had a tail wheel.
Built in 1933 ex RAF K3215 (Painted as "K3241" in the colours of the Central Flying School)
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