- Aeronautics (22)
- World War, 1914-1918 (8)
- Airplanes (7)
- Aeronautics, Military (4)
- Air pilots (3)
- Aircraft industry (3)
- Aerial photography (2)
- Dayton Wright DH-4 (2)
- Nieuport (France) 28 (2)
- World War, 1939-1945 (2)
- 95th Aero Squadron (1)
- Aeronautics, Commercial (1)
- Aircraft accidents (1)
- Airports (1)
- Bombing, Aerial (1)
- Bradenburg C.I.(U) (1)
- Breguet 14 (Military aircraft) (1)
- Curtiss Eagle I (1)
- Curtiss JN-4 Jenny (1)
- Curtiss JN-4 Jenny Family (1)
- Curtiss JN-4D Jenny (1)
- Dornier Do X (1)
- Farman (Maurice) M.F.11 (1)
- Flights around the world (1)
- Fokker D.VII (V.18) (1)
- Hughes H-4 (HK-1) Hercules ("Spruce Goose") (1)
- Jet planes, Military (1)
- Korn Brothers 1910 Monoplane (Benoist Type XII) (1)
- Messerschmitt 262 (Jet fighter plane) (1)
- North American P-51D (F-51D) Mustang (1)
- Northrop YF-17 (1)
- Piper PA-12 (Super Cruiser) (1)
- Propulsion systems (1)
- Republic P-47 (F-47) Thunderbolt Family (1)
- Rockets (Aeronautics) (1)
- Rohrbach Ro III Rotri Flying Boat (1)
- SPAD XIII (S.13) (1)
- Sikorsky (Igor) S-10, Hydro (1)
- Sikorsky (Igor) S-22 Il-ya Muroments (1)
- Sikorsky (Igor) S-5A (1)
- Tourism (1)
- Women air pilots (1)
- de Havilland (Airco) D.H.4 (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.