- Archival materials (9)
- Collection descriptions (9)
- Photographs (8)
- Correspondence (4)
- Publications (4)
- Reports (4)
- Manuscripts (2)
- Awards (1)
- Black-and-white negatives (1)
- Blueprints (1)
- Brochures (1)
- Diaries (1)
- Glass negatives (1)
- Manuals (1)
- Maps (1)
- Motion pictures (visual works) (1)
- Notes (1)
- Pamphlets (1)
- Scrapbooks (1)
- Aeronautics (8)
- Aeronautics, Commercial (6)
- Aeronautics, Military (5)
- Airplanes (3)
- Aeroanutics (1)
- Aeronautical instruments (1)
- Aircraft industry (1)
- Airlines (1)
- Airships (1)
- Astronautics (1)
- Astronauts (1)
- Autogiros (1)
- Ballistic missiles (1)
- Flight training (1)
- Ford Tri-Motor Family (1)
- Goodyear Pony Blimp (Airship) (1)
- Goodyear Wingfoot Express (Airship) (1)
- Heinkel He 178 (1)
- Heinkel He S3B Turbojet (engine) (1)
- Heinkel He S8 (109-011) Turbojet (engine) (1)
- Herrick Vertaplane Family (1)
- Herrick rotary engine (1)
- Instrument flying (1)
- Instrument landing systems (1)
- Jet propulsion (1)
- Lawrance J-1 9-cyl radial engine (1)
- Lawrance Model B 3-cyl radial engine (1)
- Manned space flight (1)
- Periodicals (1)
- Rockets (Aeronautics) (1)
- Rockets (Ordnance) (1)
- Roma (Italian SCA T.34) (Airship) (1)
- Space flight (1)
- Vostok (manned satellite) (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.