By Joseph R. Chambers
For years, NASA has used subscale models of aircraft to test how they would perform at full size. In fact, since the 1920s during the days of the National Advisory Committee on Aeronautics, scientists have continually refined testing techniques including building and using new facilities, making models more sophisticated and learning how to best interpret the results. Using these techniques, NASA has made many contributions to a broad range of aircraft including general aviation, fighters, civil transports, lifting bodies, reentry capsules, parawing vehicles, and supersonic transports. This book describes the issues that must be considered when transferring subscale results to full-scale application, and reviews results obtained in historically significant aircraft programs conducted at NASA's Langley Research Center, NASA's Dryden Flight Research Center, and NASA's Ames Research Center.