The standard work on the aerodynamics of model aircraft, now fully updated and revised! The latest research into the flight of birds and insects which is now being applied to small drones and miniature surveillance aircraft - Updated content includes expansions to the information on aerofoils to take into account the vast amount of testing carried out in recent years, including radio frequency (RC) aircraft and drones - Comprehensive information on factors affecting lift and drag, scale effect and the boundary layer, basic model performance problems, reducing induced draft, aspect, ratio, and more - Make your drones fly better with a thorough understanding of aerodynamics for model aircraft Get the latest updates and revisions to this modern, in-depth book that is considered the standard work on aerodynamic theory, as applied to model flight! The revisions to this updated edition reflect the significant developments in model aircraft, including radio frequency (RC) model aircraft and drones, over the last few years. Additional content includes extensions to the chapter on aerofoils (or airfoils) to take account of the vast amount of testing carried out recently in the USA at the University of Illinois. A new chapter explains the latest research into the flight of birds and insects which is being applied now to small drones and miniature surveillance aircraft. Older wind tunnel test reports have been replaced with the latest trials and measurements. Full-color photos and line drawings are featured throughout to help illuminate topics like factors affecting lift and drag, scale effect and the boundary layer, basic model performance problems, reducing induced draft, aspect, ratio, and more. Inside this classic reference, everything is explained in a concise and practical way for drone enthusiasts who appreciate that a better understanding of model behavior is the sure path to greater success and enjoyment! The fifth edition of Model Aircraft Aerodynamics is fully revised and in full color, with significant information on model aircraft developments in recent years. Author and aircraft expert Martin Simons provides everything you need to know about model aircraft aerodynamics in a comprehensive and concise manner. Aircraft enthusiasts will find chapters on fundamentals, basic model performance problems, trim and stability, controls, and more. The fifth edition features the following additions: An extended chapter on aerofoils, including information on recent tests carried out in the US at the University of Illinois. - A new chapter focused on the latest research surrounding the flight of birds and insects, which is now being applied to small drones and miniature surveillance aircraft. - Older wind tunnel test reports have been replaced with the latest trials and measurements. Martin Simons' interest in aviation goes back more than seventy years. Prior to his passing in 2024, he remained actively involved in designing, building, and flying model aircraft and full-scale sailplanes. Born in England in 1930, he was a teacher and became a lecturer in education in London University. Until his death, he lived in Australia, where for twenty-five years, he was a senior lecturer in education at the University of Adelaide. He has published numerous articles and several books on full-sized sailplanes and model flying and was the editor of Gliding Australia magazine for ten years. In 2006, he was awarded the Gehriger Diploma by the Federation Aeronautique Internationale. Martin Simons MA, MEd, BSc , now retired from his university teaching post has been flying models of all kinds, and full-scale sailplanes, for more than fifty years. His more advanced book Model Aircraft Aerodynamics is the standard work on its subject in the English language. Model Flight is a much simplified introduction to the same complex field.