Plan was to make deep space hauler better and launch it cheaper. Mean reusable liquid booster. Hauler go for refil on Mun orbit. Whole story is about landing this booster. So we launch: Gravity turn around 45deg on 16km because of holding TWR manualy around 1.4, then decoupling airfoils from top (before AP and circularisation): 13m/s in booster is enough to go back from 73km orbit downe with PE to 55 aiming for 3/4 of Kerbin to KSC with 0,3deg inclination. Afte