- Aeronautics (2)
- World War, 1939-1945 (2)
- 34th Bombardment Group (1)
- Boeing B-17 Flying Fortress Family (1)
- Dornier Do 17 Family (1)
- Douglas A-20 Havoc Family (1)
- Heinkel He 111 Family (1)
- Martin B-26 Marauder Family (1)
- Northrop P-61A Black Widow (1)
- Travel Air 2000 (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.