The Avro 683 Lancaster was a four-engined British heavy bomber of the Second World War, serving from 1942 until the early 1950s. The Lancaster MkIII was armed with two 0.303 inch Browning trainable forward firing machine-guns in a power operated nose turret, two 0.303 inch Browning trainable machine-guns in a power operated dorsal turret, four 0. 303 inch Browning trainable rearward firing machine-guns in a power operated tail turret. In addition up to 14000 lbs of bombs could be carried in a lower-fuselage weapons bay. The
Lancaster was manned by crew of seven comprising a pilot, co-pilot, navigator/observer, bombardier/gunner, radio operator and two gunners. The
Lancaster had a top speed of 281 mph and a typical range of 1673 km. Research Lancaster
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