Multi-million dollar airline and military aviation simulators, don't use PC's or off the shelf hardware to run their programs .
Multi-million dollar railroad training simulators do or I should say high end components available to the consumer are capable of running them, I’ve seen it with my own eyes lol.
Could you tell us what exactly these airline and military aviation simulators demand (computer wise) that can’t be done with high end components available to the consumer?
If I can simulate the air brake system and buff and draft forces of a say a 150 car freight train along with computer generated graphics simulating the territory the train is traveling over with high end components that are available to the consumer then would you not be able to for airline and military aviation simulators?
I know of at least one military aviation simulator that’s currently being developed with this game engine –
http://outerra.com/
It can be run on high end computer components available to the consumer.
How about the FAA certified version of X-Plane that runs on computer components available to the consumer?