- Aeronautics (5)
- Aeronautics, Commercial (3)
- Aeronautics, Military (2)
- Air mail service (2)
- World War, 1914-1918 (2)
- Aerial photography (1)
- Aerial reconnaissance (1)
- Aeronautical engineers (1)
- Air pilots (1)
- Airports (1)
- Autogiros (1)
- Helicopter transportation (1)
- Helicopters (1)
- Herrick Vertaplane Family (1)
- Herrick rotary engine (1)
- Periodicals (1)
- Photogrammetrists (1)
- Photogrammetry (1)
- Remote sensing (1)
- Women in aeronautics (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.