First one, It happened when I tried to do my first rocket (while playing a new game in career) ... I was quite surprised. My first rocket was using the booster and even though I had a TWR > 1, it wouldn't take off ...
After removing a 'lil fuel, it was all good (I had then TWR > 2.5)
First, I thought that it was due to all the change coming with RSS ... but later on, I've made a rocket with an engine and a tank, being at about 1.2 TWR ... and could take-off without any issue.
So, well, could someone explain to me what happened there ? ^^"
If you're using mechjeb display, it's normal, ISP is different in atmo or in space.
So for your first stage, look at the SLT column (Sea Level TWR I suppose).
[1.2] Real Solar System v12.0 Dec 8
in KSP1 Mod Releases
Posted
If you're using mechjeb display, it's normal, ISP is different in atmo or in space.
So for your first stage, look at the SLT column (Sea Level TWR I suppose).