'Only the Wing' Book Cover (IMAGE) Smithsonian Caption "Only the Wing" recounts an epic quest to stabilize and control the all-wing aircraft. Credit Smithsonian Institution Scholarly Press Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.