- Archival materials (17)
- Collection descriptions (17)
- Photographs (16)
- Publications (14)
- Correspondence (13)
- Clippings (6)
- Diaries (5)
- Maps (5)
- Reports (5)
- Drawings (4)
- Audiotapes (3)
- Articles (2)
- Financial records (2)
- Scrapbooks (2)
- Audiocassettes (1)
- Charts (1)
- Interviews (1)
- Microfilms (1)
- Minutes (1)
- Motion pictures (visual works) (1)
- Pamphlets (1)
- Posters (1)
- Videotapes (1)
- Aeronautics (16)
- Aeronautics, Commercial (6)
- Periodicals (4)
- World War, 1939-1945 (4)
- World War, 1914-1918 (3)
- Air pilots (2)
- Airplanes (2)
- Airships (2)
- Balloons (2)
- Rockets (Aeronautics) (2)
- Aeroanutics (1)
- Aerodynamics (1)
- Aeronautical engineers (1)
- Aeronautics and state (1)
- Air defenses (1)
- Air mail service (1)
- Airports (1)
- Ambulances (1)
- Ballistic missiles (1)
- Boeing B-17D Flying Fortress "Swoose" (1)
- Boundary layer (1)
- Curtiss NC-1 (P2N-1) (1)
- Curtiss NC-4 (P2N-1) (1)
- Curtiss NC-Boat Family (1)
- Douglas D-558 Family (1)
- Douglas F4D (F-6) Skyray Family (1)
- Flight training (1)
- Gliding and soaring (1)
- Guided missiles (1)
- He 293 (missile) (1)
- Kites (1)
- Midway, Battle of, 1942 (1)
- Naval aviation (1)
- Noise pollution (1)
- Rocketry (1)
- Rockets (Ordnance) (1)
- Seaplanes (1)
- Thermodynamics (1)
- Transatlantic flights (1)
- V-1 rocket (1)
- V-2 rocket (1)
- Women and the military (1)
- Women in aeronautics (1)
- Works of art (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.