| Designation | Modified Role | Location | Serial / Regist. |
|---|---|---|---|
| OL-1 |   |   | |
| OL-2 |   |   | |
| OL-3 |   |   | |
| OL-4 |   |   | |
| OL-6 |   |   | |
| XOL-7 |   |   | |
| OL-7 |   |   | |
| XOL-8 |   |   | |
| OL-8 |   |   | |
| OL-8A | Arrester gear |   |   |
| OL-9 |   |   |