The Kepler One is a realistic Launch vehicle that can launch Payloads ranging from 3 tons to 30 tons into LEO it can also put smaller Payloads 3 tons to 10 tons on the moon or in GEO. The Kepler One is my 3rd addon and my first rocket addon. The rocket is a 3 staged rocket the first stage is a Ariane 5 EAP the second stage is NASAs J2-X engine and the final stage is a fictional russian stage that i call buran it has the same specs as a Fregat stage. Pleaze send feedback