radio equipment C.B. 4553 (2) (R) Auto-aligning system mark 2. (A/AL. MK.2) : alignment of plan displays with associated radar aerials, Volume 2. Figures RNLAF Ale Concepts ETC-4010 F HF system HF-90000D : Level 1 of Maintenance Flight Line 222-HF9000D-L1 Supporting Documentation
