[BBury]

Anything is possible. It's just that it would take a huge amount of code writing to include transonic and supersonic environment/aerodynamic variables. If you are willing to learn java code I can point you in the starting direction but it would most likely end up being a completely separate game by the time you are done and incompatible with the current game without a year or two of testing. And don't forget that all this would have to be done for free on a volunteer basis to avoid infringing on copyrights.

It would be very cool though.....