Ivan C-T - top chap, did my pre A2 workup with him
We had some ex-RN Mk 5s in Cyprus that had been part-converted to HC 2 standard but retained the horrible traffic light rad-alt and (very usefully) the external drop fuel tank which gave us enough range to get to Israel for premature babyvacs.
No radalt traffic lights on any Wessex that I remember?
(photo from
Nigel Osborn collection)