- Aeronautics (3)
- Vietnam War, 1961-1975 (2)
- Aeronautics, Military (1)
- Bell OH-58A Kiowa (1)
- Bell UH-1 Iroquois (Huey) Series (1)
- Boeing B-52 Stratofortress Family (Model 464) (1)
- Boeing-Vertol CH-47A Chinook, (1)
- Disaster relief (1)
- Helicopters (1)
- Operation Deep Freeze (1)
- Piasecki H-21 (1)
- Shorts C-23A Sherpa (1)
- de Havilland (Canada) (DHC-4) AC-1A (CV-2A, C-7A) (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.