Jeb will love doing math now! I can hear it: Jeb: So, to get to the Mun, I multiply 3 boosters by 5 boosters. Ok, so for a Free-Return Trajectory, I need about 878 m/s of ∆-V. Bill and Bob, in chorus: JEB!! NOOOOOOOOOOOOooOooooOOoooo!!!!!!!q1! Jeb: Here goes!