- Archival materials (8)
- Collection descriptions (8)
- Correspondence (4)
- Drawings (3)
- Photographs (3)
- Clippings (2)
- Color slides (2)
- Financial records (2)
- Manuals (2)
- Publications (2)
- Reports (2)
- Black-and-white negatives (1)
- Certificates (1)
- Manuscripts (1)
- Negatives (1)
- Newsletters (1)
- Research (1)
- Videotapes (1)
- Aeronautics (8)
- Aeronautics, Commercial (6)
- Aeronautics, Military (3)
- Aerial photography (1)
- Aeronautical engineers (1)
- Air travel (1)
- Aircraft industry (1)
- Airlines (1)
- Autogiros (1)
- Bell UH-1B (HU-1B) Iroquois (Huey) (1)
- Boeing B-52 Stratofortress Family (Model 464) (1)
- Curtiss X-19 VTOL (1)
- Curtiss, General, Aircraft (1)
- Curtiss-Wright aircraft (1)
- Grumman Aircraft Family (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)
- Shorts C-23A Sherpa (1)
- Test pilots (1)
- Transatlantic flights (1)
- Vietnam War, 1961-1975 (1)
- Wind tunnels (1)
- Women in aeronautics (1)
- Women test pilots (1)
- World War, 1914-1918 (1)
- de Havilland (Canada) (DHC-4) AC-1A (CV-2A, C-7A) (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.