- Aeronautics (4)
- Airplanes (2)
- Aeronautics, Commercial (1)
- Aircraft industry (1)
- Heinkel He 178 (1)
- Heinkel He S3B Turbojet (engine) (1)
- Heinkel He S8 (109-011) Turbojet (engine) (1)
- Jet propulsion (1)
- Propulsion systems (1)
- World War, 1939-1945 (1)
- Wright Cyclone 18 (R-3350) 18-cyl radial engine family (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.