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My recommendation for jet combat is always Bandits by David Redpath:https://www.wargamevault.com/product/135038/Bandits-2A wonderful set of air combat rules that totally eliminates the need for the hideous flying stands that blight pretty much every other set of air combat rules without losing anything in the feel of the combat.The Mig17 and the F86 are included in the provided list of aircraft stats and the Ilyushin would be a simple one to stat yourself by comparison with others.
Thanks all. I have 'Check Your 6!' (hex mat) and 'Airwar C21' (too modern).I will do some reading on reviews, as all are easy to get, but 'Wings at War' is grabbing me initially.