Victory Aircraft Limited was a Canadian manufacturing company that, during the Second World War, built mainly British-designed aircraft under licence. It acted as a shadow factory, safe from the reach of German bombers.

The Avro Lancaster is a British Second World War heavy bomber. It was designed and manufactured by Avro as a contemporary of the Handley Page Halifax, both bombers having been developed to the same specification, as well as the Short Stirling, all three aircraft being four-engined heavy bombers adopted by the Royal Air Force (RAF) during the same era.