8900 m/s delta-V lifter assembly, consisting of a SRB assisted Mainsail-Module and that what I call a Turbo-Nukster for the orbital transfers. how to pilot: - full-throttle launch, adjust throttle accordingly after srb-separation to archieve more fuel-effiency - GravTurn attack angle 55-60° to start with, increase angle when approaching separation of turbo-nukster module (or: a rather steep ascend to pinch out of atmo, for the Turbo-Nukster to do it`s job properly) additional infos: - max thrust on the mainsails and srb`s have been tweaked down in order to not exceed terminal velocity, adjust depending on payload. - not much headroom left for large-sized payloads due VAB height restrictions - screenshot shows Flight-Engi mod, removed the part for it in the craftfile tho. - I`m sharing the VAB file, because there have been troubles with this shared as SUB, so make your own SUB from it, the root-part is the probecore on the very top. - build and used on 0.03 delta-physics-time, so it should be pretty stable on the launchpads everywhere I hope. - I`ve made this liftersystem and similar with intention to not have to rely on asperagus styled lifters anymore enjoy and 'splode! VAB craftfile: https://www./?kbcg21mmrboc1gj