- Aeronautics (4)
- Aeronautics, Commercial (3)
- Aerial photography (1)
- Aeronautical engineers (1)
- Aircraft industry (1)
- Autogiros (1)
- Curtiss X-19 VTOL (1)
- Herrick Vertaplane Family (1)
- Herrick rotary engine (1)
- Junkers W 33 Family (1)
- Junkers W 33b "Bremen" (1)
- Klemm L-20 "Yankee Doodle" (1)
- Periodicals (1)
- Propellers, Aerial (1)
- Transatlantic flights (1)
- Wind tunnels (1)
- World War, 1914-1918 (1)
Our collections specialists actively work on the conservation, preservation, restoration, and long-term care of the objects in our collection. From full-scale restoration projects to applying preservation techniques and doing regular assessments, these activities form a crucial part of our stewardship of the National Collection.