| 0249-2858 | U1278 | MINISTRY OF DEFENCE NAVY |
| 17-27B | 99237 | AIRFORCE-NAVY AERONAUTICAL DESIGN STANDARD |
| TR718B66 | K0279 | G E C MARCONI AVIONICS LTD |
| BS1806-240 | K7766 | BRITISH STANDARDS INSTITUTION |
| BSM48-240 | K7766 | BRITISH STANDARDS INSTITUTION |
| 4K2858 | U1725 | MINISTRY OF DEFENCE AIR DOMESTIC R FERENCE NUMBER USE ONLY |