- Aeronautics (11)
- Aeronautics, Commercial (5)
- Air pilots (4)
- Airplanes (4)
- Women air pilots (3)
- Aerial photography (2)
- Aeronautics, Military (2)
- Airlines (2)
- Women in aeronautics (2)
- World War, 1939-1945 (2)
- Aeronautical sports (1)
- Air mail service (1)
- Airplane racing (1)
- Airships (1)
- Balloons (1)
- Boeing 247 (1)
- Curtiss C-46 Commando (1)
- Curtiss Condor T-32 (Condor II) (1)
- Douglas C-47 Skytrain Family (1)
- Douglas C-54 Skymaster Family (1)
- Douglas DC-3 Family (1)
- Douglas DC-6 (1)
- Douglas DC-7 (1)
- Flight training (1)
- Gliders (1)
- Helicopter transportation (1)
- Helicopters (1)
- Lockheed Model 10 Electra Family (1)
- Lockheed Model 1049D Super Constellation (1)
- Lockheed Model 749 Constellation (1)
- Martin (Glenn L.) B-10 (Model 139) (1)
- McDonnell Douglas DC-10 Family (1)
- North American BT-9 (1)
- Northrop A-17 (8A) (1)
- Parachutes (1)
- Periodicals (1)
- Seaplanes (1)
- Seversky P-35 (1)
- Stunt flying (1)
- Tupolev ANT-25(RD) (1)
- Vultee V1-A (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.