1941-1963 Avro Lancaster. Heavy Bomber RAF, RCAF, RAAF. Engine: 4 x Rolls-Royce XX liquid-cooled V12 engines (1,280 hp) Armament: 2 x Browning .303 Mk II machine guns (nose), 2 x Browning .303 Mk II machine guns (upper turret), 4 x Browning .303 Mk II machine guns (rear turret) Bombs: 14,000 lb max, or 22,000 lb Grand Slam. Max speed: 282 mph (246 km/h)