Thorsten wrote in Fri Dec 18, 2015 8:38 am:you can always accelerate simulator time and/or reposition your vehicle at run-time.
Only if your underlying trajectory simulation code is numerically stable enough to do that. Which JSBSim was never tested for if I remember Jon correctly.
An FDM simulating real orbital mechanics, which properly handles the three-body problem, is required for any moon adventures. Then the FlightGear time acceleration framework would be useful (the [a]/[A] buttons), and the maximum acceleration of x32 extended to higher values. But the orbital mechanics is currently missing. It needs to be implemented in JSBSim. Or in a new orbital/space FDM which can be hot switched to on the FG side. In any case, there is a lot of work ahead.
Regards,
Edward