Graphic Simulation's F/A-18 3.0 sim set new standards of fidelity and was playable on an average PC!.... or a Mac for that matter.
It was actually released on Mac first, unusual for flight sim nowadays but back then Mac's had better graphics capabilities than PC's.
Read the Huge guide to the next major upgrade to this sim, which added 3dfx and a new theater - Korea:
F/A-18 Korea reviewed at MiGMan's Flight Sim Museum - www.migman.com