Oberth effect

[Hesp]

6 minutes ago, FleshJeb said:

Thanks for following up. I should try doing the calcs myself. Do you work backward from V_excess from parent SOI and chain it down through SOIs? Do you have to add the orbital velocity of the Mun about Kerbin to your craft velocity about Mun? 

Great mod! I'll be using it.

It was just a simple excel file answering the question: "what V_excess do I need at Mun SOI exit to have the correct V_excess at Kerbin SOI exit?". Nothing much than some basic calculations to see if it was convenient compared to a LKO launch.