| Designation | Modified Role | Location | Serial / Regist. |
|---|---|---|---|
| XO-2 |   |   | |
| O-2 |   |   | |
| O-2A |   |   | |
| XO-2B |   |   | |
| O-2B |   |   | |
| O-2C |   |   | |
| O-2D |   |   | |
| XO-2E |   |   | |
| O-2E |   |   | |
| O-2H |   |   | |
| O-2J |   |   | |
| O-2K |   |   |