KSP 1.0 has brought a lot of changes, both to aerodynamics and the specifications of many parts. The requirements for a successful launch to orbit have changed, so let's find out what makes the best lifters with the new version. The Challenge: Build and fly the most mass-efficient lifter possible to low Kerbin orbit. The Rules - Stock parts only. KSP version 1.0.5 only, entries from earlier versions will not be considered. Make sure you have 1.0.5.1028. - No cfg editing, sa