Well I only ever first played F15 Strike Eagle II which was by miles better as a PC game, but Blue Sky turned Starflight into a winner for Sega. They should've ported it back over to PC.
Another one:
Star Wars TIE Fighter (interactive demo 1993)
Basically from what I read its a hybrid of TIE fighter and X-Wing. The cockpits aren't TIE fighters and the music is from X-Wing. Maybe a unique mission too?
http://www.youtube.com/watch?v=-TuOcgH0kmo
BTW thanks for the great thread I love prototypes/demos/betas etc.