| 5D3026 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| 6LP108 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |
| TYPE H2 | K1096 | THALES UNDERWATER SYSTEMS UK |
| WED136151 | U3092 | SMITHS DETECTION-WATFORD LIMITED |
| H2 | U3092 | SMITHS DETECTION-WATFORD LIMITED |