KSP v1.5: Single stage, nonstop trip to Eve and back: World first stock, unrefueled SSTK from Eve.

Stock parts and physics, one very long spaceplane. References: Astrobond: First Eve SSTO proof of concept: https://youtu.be/dn1RB4ZnWpQ Stratzenblitz75; First fully reusable Eve mission: https://youtu.be/MTkObR6-Bs8 Kergarin Aerospace; First fully functional Eve SSTO: https://youtu.be/C6ChB20KshE My own asteroid-shenanigans Eve single stage mission: https://youtu.be/_-pctls27b0