Can't help you on your plane, but did you know FS wasn't
originally a microsoft program? a couple of guys in
Illinois made it. I first flew it on an apple 2e in the
early eighties. You should still be able to find copies of
the original versions (there are a few, I can't remember
how many) available on the internet, but you'll probably
need to download an Apple Emulator to get them to work on
modern dos machines. Just though the number one fan might
like to know.

Good luck finding your plane.....