High Quality Content by WIKIPEDIA articles! The de Havilland Mosquito is a British light bomber and later night-fighter used by the Royal Air Force and many other Allied countries throughout the Second World War. Only a few aircraft survive of the 7,000 built; the mainly wooden construction has not helped as the aircraft do not survive well outside, making restoration difficult. The last Mosquito known to be airworthy (serial number RR299), a Trainer Mk III built by de Havilland at Leavesden in Spring 1945, crashed on 21 July 1996 with the loss of both crew after suffering engine power loss when performing a wing-over manoeuvre at Barton Aerodrome air show, near Barton, Greater Manchester.