Just after I sent a help message, I figured out the problem. And here is the result As you can see, there is a bit of overheat in the main engine ??? Anyway thanks for the help !
Hello, A friend showed me Kerbal Space Program a few months ago and I must say I am totally addicted. I found this game fun to play and watch... (especially the failures :-* =P) Charlie aka Jebediah2158