The English Electric Canberra was a British two or three-seater high-altitude light bomber and night intruder aircraft first flown in 1949, entering service in 1951. The English Electric Canberra was a cantilever mid-wing monoplane armed with four 20 mm Aden cannons in an optional ventral pack carried in the rear of the two-part weapons bay and up to 8000 lbs of disposable stores carried in the weapons bay and on two hard points one under each wing, each rated at 1000 lbs. Two Rolls-RoyceAvon 101 turbojets provided the Canberra with a top speed of 827 kmh and a range of 1295 km. Research Canberra