chopper2004 :-
Thing was though the late Eric ‚Winkle‘ Brown Went over to fly the prototype YCH-47A at Boeing Philadelphia in 62 (?) and MoD looking at procuring it in the late 60s but did not happen.
Indeed, our course at 5 AFTS Oakington winter 62/63 (doing ME training on Varsities) was treated to a presentation about the exciting new prospects for the RAF helicopter force being on the verge of acquiring the Chinook. We could become a part of that by simply declaring our interest, now! Having been in long enough to have learnt "Never volunteer, ever", we didn't. It turned out to be wise advice.