- Archival materials (7)
- Collection descriptions (7)
- Correspondence (6)
- Photographs (5)
- Publications (5)
- Drawings (3)
- Diaries (2)
- Manuscripts (2)
- Scrapbooks (2)
- Articles (1)
- Audiotapes (1)
- Business cards (1)
- Clippings (1)
- Financial records (1)
- Manuals (1)
- Motion pictures (visual works) (1)
- Research (1)
- Transcripts (1)
- Aeronautics (7)
- Periodicals (3)
- Aeronautics, Commercial (2)
- Aeronautics, Military (2)
- Aeronautics designers (1)
- Air mail service (1)
- Air pilots (1)
- Airplanes (1)
- Airships (1)
- Astronautics (1)
- Astronautics and state (1)
- Cold War (1)
- Curtiss CD-12 (engine) (1)
- Curtiss R-1454 (engine) (1)
- Curtiss V-1400 (engine) (1)
- Curtiss X-19 VTOL (1)
- Electricity in aeronautics (1)
- Military art and science (1)
- Propellers, Aerial (1)
- Wind tunnels (1)
- World War, 1914-1918 (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.