- Archival materials (14)
- Collection descriptions (14)
- Photographs (13)
- Manuscripts (5)
- Maps (4)
- Clippings (3)
- Drawings (3)
- Reports (3)
- Articles (2)
- Diaries (2)
- Financial records (2)
- Motion pictures (visual works) (2)
- Scrapbooks (2)
- Audiocassettes (1)
- Audiotapes (1)
- Black-and-white negatives (1)
- Ephemera (1)
- Negatives (1)
- Newsletters (1)
- Newspapers (1)
- Notes (1)
- Press releases (1)
- Programs (1)
- Timetables (1)
- Transcripts (1)
- Videotapes (1)
- Aeronautics (14)
- Aeronautics, Military (7)
- Periodicals (7)
- Aerial photography (2)
- Aeronautical engineers (2)
- Air mail service (2)
- Air pilots (2)
- Gliding and soaring (2)
- Women in aeronautics (2)
- World War, 1914-1918 (2)
- Aeronautics and state (1)
- African American air pilots (1)
- Air travel (1)
- Aircraft industry (1)
- Airlines (1)
- Airplanes (1)
- Airports (1)
- Airships (1)
- Autogiros (1)
- Balloons (1)
- Boeing 727 Family (1)
- Boeing 747SP (747-100SP) (1)
- Cartography (1)
- Curtiss CD-12 (engine) (1)
- Curtiss R-1454 (engine) (1)
- Curtiss V-1400 (engine) (1)
- Douglas DC-9 Family (1)
- Fighter pilots (1)
- Flight attendants (1)
- Flight training (1)
- Helicopter transportation (1)
- Helicopters (1)
- Herrick Vertaplane Family (1)
- Herrick rotary engine (1)
- Kites (1)
- Local service airlines (1)
- Women air pilots (1)
- World War, 1939-1945 (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.