If my memory serves me correctly, which it frequently doesn't, in 69-70 we called it FOB (Flights Over the Border) or playing baseball (flying over the fence), since we weren't "officially" going there. I'll never forget the night we were on one of those and saw the lights of an airport, I don't remember the name of the place, with a MIG coming off of it. That old Charlie Model would have out flown any Cobra that night.

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