Hey Guys, I recently got KSP and hugely enjoy it and got my first few Kerbals to the Mun and back and to Minimus (screw orbital alignment :-)) and back. However, I noted a few oddities and I am not sure if that is working as intended or a bug. Firstly, discarded stages at a low orbit (Periapsis > 40000) seem to continue orbiting forever without noticeable atmospheric braking. I thought to myself, "hey, i'll also use a low periapsis (~25.000, Apoapsis roughly 140k)) to slowly brake myself into a landing trajectory. Turns out, that low, my upper stage never makes it out of the atmosphere again. On the other hand I have a large piece of debris (a few big tanks with a big engine) which swings by at 25.000 (plus minus 2k) and goes back up to the periapsis of 140k. Why? Intentional simplification, much MUCH lower drag? Secondly, the efficiency of the engines seems to dependent on level of thrust quite a bit. Is this intentional or a bug? Cheers, K'toff
