I'm using it with realims overhault and im trying to build my first successfull SSTO skylon-like. The problem i have is that the cargo bay i'm using seems not to shield parts properly. They must have some compability issue with FAR. Here some pictures of my SSTO. The maximum altitude i reached was 40 km and the cargo explodes because of the heat because it is not protected. I post this issue on FAR thread and i got some answers: @paju1986: As for the cargo bays, check to see if parts are shielded when the bay is open; that might mean that something is happening backwards for some unknown reason. It is a fairly out-of-date part, perhaps that is part of the issue. One thing is that currently FAR requires cargo bay doors to have colliders - if things can go through them, and you can click on cargo with them closed, then FAR will think they are never closed. This is the case with the MK2 B9 cargo bays. The reason for the requirement is that parts aren't consistent re which end of the animation is open, so FAR does raycasts to find out.