So, about overheating hull during flight... How do i super/hypersonic now? I need to be able to go fast (duh!) to survey Kerbin, but i can't, since if i go above 20km, where friction is low and heating is minor, my engine chokes, and if i go lower than 20km, i quickly gain enough heat to boil the pilot in burning jet fuel with molten steel beams. As for re-entry, maybe it would be possible to add ablator resource to spaceplanes parts? Because they do have that black tiles on the bottom, like shuttle does. I have no idea how thermal shields work in this game though, but something tells me it has something to do with ablator.