- Archival materials (18)
- Collection descriptions (18)
- Photographs (15)
- Correspondence (10)
- Publications (9)
- Maps (8)
- Manuscripts (5)
- Drawings (3)
- Reports (3)
- Clippings (2)
- Financial records (2)
- Scrapbooks (2)
- Audiocassettes (1)
- Audiotapes (1)
- Digital images (1)
- Interviews (1)
- Logs (records) (1)
- Microfilms (1)
- Motion pictures (visual works) (1)
- Notes (1)
- Posters (1)
- Telegrams (1)
- Videotapes (1)
- Aeronautics (17)
- Periodicals (7)
- Aeronautics, Commercial (6)
- World War, 1939-1945 (4)
- Aerial photography (2)
- Air pilots (2)
- Airships (2)
- Fighter pilots (2)
- Works of art (2)
- World War, 1914-1918 (2)
- Aerial reconnaissance (1)
- Aeroanutics (1)
- Aerodynamics (1)
- Aeronautics and state (1)
- Balloons (1)
- Boeing B-17D Flying Fortress "Swoose" (1)
- Boeing B-17G Flying Fortress (1)
- Boeing B-29 Superfortress (1)
- Bombs (1)
- Cartography (1)
- Cold War (1)
- Curtiss NC-1 (P2N-1) (1)
- Curtiss NC-4 (P2N-1) (1)
- Curtiss NC-Boat Family (1)
- Douglas World Cruiser (DWC) (1)
- Endurance flights (1)
- Flight training (1)
- Flights around the world (1)
- Lockheed U-2 Family (1)
- Photographic reconnaissance systems (1)
- Prisoners of war (1)
- SPAD XIII (S.13) "Smith IV" (1)
- Seaplanes (1)
- Sellers 1908 Quadruplane (Sellers No 5) (1)
- Sellers 1909 Quadruplane (Sellers No 6) (1)
- Sellers 1924 Multiplane (1)
- Transatlantic flights (1)
- United States (1)
- Wind tunnels (1)
- Wright (Co) Type A Family (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.