The Handley Page Halifax was the second four engine bomber received by the RAF, and carried out it’s first raid in March of By February of 1943 the comparable, but less expensive Avro Lancasters outnumbered the Halifaxes. Halifax bombers were built.
This is NOT a Lancaster - it is a Halifax. The Avro Lancaster is a British four-engined Second World War heavy bomber designed and built by Avro for the Royal Air Force (RAF). It first saw active service with RAF Bomber Command in 1942