- Aerial spraying and dusting in agriculture (1)
- Aeronautics (1)
- Air Tractor AT-400 (1)
- Air Tractor AT-602 (1)
- Astronautics (1)
- Ayres Corp 660 Turbo-Thrush (1)
- Ayres Corp Turbo-Thrush S2R (1)
- Bell UH-1B (HU-1B) Iroquois (Huey) (1)
- Cessna 340 (1)
- Hughes 269 Family (1)
- Piper PA-25 Pawnee Family (1)
- Space Shuttles, Columbia (OV-102) (1)
- Space flight (1)
- Space shuttles (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.