Handley Page W.8

The Handley Page W.8, W.9 and W.10 were British two- and three-engine biplane airliners of the 1920s, built by Handley Page as its first purpose-built civil airliners. The W.8 grew out of the wartime Type O/400 bomber by way of the O/7, O/10 and O/11 transports, and it was the first airliner designed with an on-board lavatory. The prototype first flew on 4 December 1919 after being shown at the Paris Air Show that year. Later versions included the W.8b used by Handley Page Transport and Imperial Airways on the Paris and Brussels services, the W.8e built for Sabena in Belgium, the three-engined W.9a Hampstead and the twin-engined W.10. The W.8 was also the basis of the Hyderabad bomber. Imperial Airways retired the type when the HP.42 arrived in 1931, and two surviving W.10s were later converted into tanker aircraft by Sir Alan Cobham.