Ensign prototype G-ADSR at Croydon Airport , Greater London, c 1930s.
© Science Museum / Science & Society Picture Library
The aircraft awaits an early morning departure. The Armstrong Whitworth Ensign first flew on 24 January 1938. Characterized by a sleek all metal structure and a large retractable undercarriage, it was the largest pre-war landplane built for Imperial Airways. Fourteen were built, staying in pasenger service until 1946. After war service the fleet survivors transferred to BOAC.