I'm guess it got canned over lack of deconfliction!
No deconfliction on Ex Sparrowhawk in May '69. We were flying loose gaggles of Wessex, Whirlwind and Scout (iirc) until attacked by the Hunters, when it was every helo for himself. Not unknown to come barrelling round a copse to find a colleague going the other way. We were flying two pilots up, with one keeping a running commentary on tape, while plotting position every few seconds on a 1" OS map. One crew reportedly managed to record, via the throat mike, the noise of the Hunter's engine.
