I’m surprised that I never posted this here on Starport. In March I made a Freelancer “flight simulator” with the goal of getting a flight model as close as possible to Freelancer, even using my own set of modified physics that run on the same formula as Freelancer.
You can actually plug in values from a Freelancer ship and it’ll fly almost exactly the same as it would in the real game. The differences come in how mouse flight is handled, but you can eliminate those differences by flying in cockpit view. Either way, it’s still extremely close, to the point where the only way you’d notice the differences is putting video of the two side by side.
The video player seems to be broken, so here’s a link to the video.