It can also be useful to tell MechJeb to do a particular action just to watch and see how it does it and learn from it. Many people only use MechJeb for the information features, but a lot of veteran players also find that automating certain repetitive tasks becomes preferable after they have done them by hand hundreds of times. It can do simple automation such as “keep my ship pointing prograde” to more advanced features like “adjust my thrust so that I a decent at a constant 5 m/s” all the way to full-blown takeoff automation that will take you to orbit with a single press of a button. The other major category feature of MechJeb is its autopilot capabilities.

The most important feature is the Delta-V chart, which will tell you exactly how much Delta-V (a measure of how far you can travel in space, more or less) your craft can produce in each stage. MechJeb gives you the possibility of viewing every parameter of your craft (while building or flying) and your flight at all times. Definitely the single most popular mod out there.

Kerbal space programs mods