- World War, 1914-1918 (3)
- Aeronautics, Military (2)
- Air pilots (2)
- Aeronautical sports (1)
- Aeronautics, Commercial (1)
- Airlines (1)
- Albatros D.Va (L24) (1)
- Balloons (1)
- Curtiss JN-4 Jenny Family (1)
- Junkers W 33 Family (1)
- Junkers W 33b "Bremen" (1)
- Klemm L-20 "Yankee Doodle" (1)
- Mural painting and decoration (1)
- Periodicals (1)
- Pratt & Whitney Wasp Major R-4360 28-Cylinder Radial (1)
- Test pilots (1)
- Transatlantic flights (1)
- Women air pilots (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.