Paul Blackah MBE is co-author of the Haynes Supermarine Spitfire, Avro Lancaster, Hawker Hurricane, Douglas CD-3 Dakota and Spitfire Restoration Manuals. He is best-known for his work with the RAF's Battle of Britain Memorial Flight. He lives in Lincolnshire. Malcolm Lowe is an aviation author and historian. He is co-author of the Haynes Hawker Hurricane Manual and a regular contributor to the aviation press. He lives in Dorset.