| RefNo | RHB/2/1/5 |
| Previous numbers | B.13-B.25 |
| Level | File |
| Title | Papers concerning development of Air Intercept |
| Date | 1937-1996 |
| Description | Material regarding the development of Air Intercept (AI) equipment.
AI was developed for airborne detection of other aircraft at night or when visibility is bad. |
| Extent | 12 folders, 1 notebook. |
| AccessStatus | Open |
| AccessConditions | Restrictions apply - items remain closed for 30 years from date of creation. |