The Avro Lancaster was one of the finest bombers of World War II and became the spearhead of the RAF's strategic bombing campaign over the Third Reich. Richard Marks draws on extensive research and detailed technical drawings to explore the evolution of this heavy bomber, revealing how its design developments transformed an old airframe from a dangerous liability into one of the most powerful weapons in the RAF arsenal. It demonstrated excellent performance, ruggedness and good handling qualities and it was soon at the fore of all the RAF's bombing campaigns. This book tells the story of the iconic Lancaster in full, providing a comprehensive account of the design, development and operational history of the aircraft and its evolution into successor aircraft.