VoidSquid

It is not, only if you want MJ to be partless. Without MM, you'd have to use the AR202 case.

It does: keeps people busy of thinking of its effects

Would you mind, please?

Both,

Looks like this bug which as per the patch notes has been fixed in 1.11.2 https://bugs.kerbalspaceprogram.com/issues/26961

Hi and welcome to the forums, @AMA PR0 To be able to help you. we need some more information please, as outlined here: Chances are that you manually installed the mods instead of using CKAN and somehow have an incorrect folder structure for MechJeb, it should look similar to this:

Looks like this issue https://bugs.kerbalspaceprogram.com/issues/27008 Maybe the workaround described there works for you too?

Being an "old timer", yes, of course, I have Though that wasn't my point here, actually.

In descending order of priorities: Max. single core CPU clock. Amount of RAM. Graphics card.

Glad we could help a little

Regarding your Screenshot, the Ap can't be lower than the Pe by definition.

You're not. All dv maps I know about are not including any GA assisted trajectories, I'm sorry. Naturally, the higher the mass, the greater the GA effect of a given CB can be, for the Kerbol system that would be, apart from Jool, Eve, Kerbin and Duna.

Take a look here:

Try right clicking the pod/probe core, there should be a setting allowing you to toggle the orientation.