Sven Lampell on exchange with 98 Sqn for 6 months from Swedish Air Force.   This was quite unusual when you realise that Sweden were not even members of NATO.   Jock Wallace from 93 spent 6 months from Jun to Nov53 with the Swedish Air Force flying the Saab J-29 "Flying Barrel", maybe the other half of the exchange?   (Thanks to Dougie Adamson.)