We had plenty of exchange aircrew on the RN Sea King squadrons, and elsewhere. At any one time I recall a French (Navy) nav, a Canadian pilot (killed flying into a 220ft cliff at 200ft on the radalt), a USN pilot (later an Admiral), a German Navy pilot and too many RAN pilots! Two of my instructors on 705NAS were Australian on exchange, indeed we also had half a dozen or so at BRNC Dartmouth on course. Australia Day was always looked upon with trepidation to see what they would get up to, such as attending Divisions on horseback.
Then the FW squadrons also had plenty of exchange personnel, predominantly USN. I was always plenty impressed with the F4 jock with his leather jacket and the "Gulf of Tonkin Yacht Club" patch emblazoned across the back.