- Archival materials (17)
- Collection descriptions (17)
- Photographs (15)
- Correspondence (14)
- Publications (11)
- Drawings (5)
- Financial records (4)
- Audiotapes (3)
- Clippings (3)
- Diaries (3)
- Ephemera (2)
- Reports (2)
- Scrapbooks (2)
- Articles (1)
- Motion pictures (visual works) (1)
- Negatives (1)
- Newspaper clippings (1)
- Newspapers (1)
- Photographic prints (1)
- Telegrams (1)
- Timetables (1)
- Videotapes (1)
- Aeronautics (15)
- Periodicals (8)
- Aeronautics, Commercial (5)
- Aeronautics, Military (3)
- Aeronautical engineers (2)
- Air mail service (2)
- Air pilots (2)
- Airships (2)
- Balloons (2)
- Gliding and soaring (2)
- Mercury Project (2)
- World War, 1914-1918 (2)
- Aerial photography (1)
- Air defenses (1)
- Aircraft (1)
- Aircraft industry (1)
- Airplanes (1)
- Airports (1)
- Apollo Project (1)
- Astronauts (1)
- Avionics (1)
- Ballooning (1)
- Balloons, Captive (1)
- Curtiss CD-12 (engine) (1)
- Curtiss R-1454 (engine) (1)
- Curtiss V-1400 (engine) (1)
- Dyott Bomber (1916) (1)
- Dyott Monoplane (1913) (1)
- Gemini Project (1)
- Helicopter transportation (1)
- Helicopters (1)
- Kites (1)
- Langley Aerodrome Family (1)
- Langley Aerodrome No 5 (1895-96) (1)
- McDonnell F-4 (F4H) Phantom II Family (1)
- North American X-15 (1)
- Project Apollo (U.S.) (1)
- Radar air traffic control systems (1)
- Rocketry (1)
- Rockets (Aeronautics) (1)
- Saturn 5 Launch Vehicle (1)
- Space flight (1)
- Trophies (1)
- Walden IV 1910 Monoplane (1)
- Works of art (1)
- World War, 1939-1945 (1)
- Wright (Brothers) 1903 Flyer (1)
- Wright (Co) Model G Aeroboat (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.