Sorry, I haven’t been able to find any other forum to ask for help. I’m having a problem with JSBSim where spawning the aircraft too far from world origin (X=48614744.0, Y=-446933797.0, Z=19265.0) makes the aircraft behave eratically. It makes the aircraft skid towards the general direction of the world origin with rapid acceleration and I am unable to control the aircraft. Would anyone happen to know what’s happening?