| Designation | Nickname | Primary role |
|---|---|---|
| AC-1 | Caribou | U.S. Air Force Airplane, Cargo (1956-1962) |
| C-7 | Caribou | U.S. Tri-Service Transport (1962- Present) |
| C-8 | Buffalo | U.S. Tri-Service Transport (1962- Present) |
| D.H.C. 1 | Chipmunk 2 | Trainer / Utility Transport (Canada) |
| D.H.C. 2 | Beaver I | Utility Transport (Canada) |
| D.H.C. 3 | Otter | Utility Transport (Canada) |
| D.H.C. 6 | Twin Otter | Utility Transport (Canada) |
| NU-1 | Otter | U.S. Air Force Utility (1952- Present) |
| U-1 | Otter | U.S. Air Force Utility (1952- Present) |
| U-6 | Beaver | U.S. Air Force Utility (1952- Present) |
| UC | Otter | U.S. Navy / Marines Utility (1955-1962) |
| V-2 | Caribou | U.S. Air Force V/STOL (1956- Present) |
| V-7 | Buffalo | V/STOL |
| V-18 | Twin Otter | U.S. Air Force V/STOL (1956- Present) |