| Designation | Nickname | Primary role |
|---|---|---|
| 14-13-2 | Cruisair  | Utility Transport |
| C-27 | Airbus  | U.S. Air Force Transport (1925-1962) |
| CH-300 | Pacemaker  | Commercial Transport |
| CH-400 |   | Commercial Transport |
| JE |   | U.S. Navy / Marines General Utility (1931-1955) |
| L-11 |   | U.S. Air Force Liaison (1942-1962) |
| O-50 |   | U.S. Air Force Observation (1924-1942) |
| RE |   | U.S. Navy / Marines Transport (1931-1962) |
| SE |   | U.S. Navy / Marines Scout (1922-1946) |
| SOE | Seagull  | U.S. Navy / Marines Scout Observation (1934-1946) |