- Archival materials (20)
- Collection descriptions (20)
- Photographs (14)
- Correspondence (4)
- Publications (3)
- Reports (3)
- Clippings (2)
- Drawings (2)
- Financial records (2)
- Maps (2)
- Photographic prints (2)
- Articles (1)
- Charts (1)
- Color slides (1)
- Color transparencies (1)
- Contact prints (1)
- Glass negatives (1)
- Glass plate negatives (1)
- Manuscripts (1)
- Motion pictures (visual works) (1)
- Newsclippings (1)
- Posters (1)
- Project files (1)
- Questionnaires (1)
- Technical reports (1)
- Videodiscs (1)
- Videotapes (1)
- Aeronautics, Military (9)
- Airplanes (6)
- Aeronautics, Commercial (3)
- Airplanes, Military (3)
- Aircraft industry (2)
- Astronautics (2)
- Periodicals (2)
- World War, 1914-1918 (2)
- World War, 1939-1945 (2)
- Aerial photography (1)
- Aeronautics designers (1)
- Air pilots (1)
- Aircraft carriers (1)
- Airlines (1)
- Airplane racing (1)
- Airships (1)
- Antiaircraft missiles (1)
- Bell P-59 Airacomet Series (1)
- Coanda effect (1)
- Coral Sea, Battle of the, 1942 (1)
- Energy conservation (1)
- Gliders (Aeronautics) (1)
- Heinkel He 162 Spatz (Sparrow) Volksjager (People's Fighter) (1)
- Junkers Ju 388 Family (1)
- Korean War, 1950-1953 (1)
- Midway, Battle of, 1942 (1)
- Naval aviation (1)
- Pearl Harbor (Hawaii), Attack on, 1941 (1)
- Philippine Sea, Battles of the, 1944 (1)
- Rocketry (1)
- Rockets (Aeronautics) (1)
- V-1 rocket (1)
- V-2 rocket (1)
- Water conservation (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.