Tags: Aircraft.
For a helicopter see Westland Wessex.The Westland IV and Westland Wessex were high wing three-engined light transport aircraft built by Westland Aircraft.The Westland IV first flew on 21 February 1929 at which time it was powered by the 95 hp Cirrus engine. This prototype was registered as G-EBXK and was certified for a crew of two and four passengers. The second machine had Hermes engines and a metal rear fuselage.