Chamisul

With no mods It is useful for simulating inter-system travel launching(if this is correct description) for manned mission match the weight of probe lander to manned lander and shoot that thing to where-ever celestial rock-site you want to send your men next time if probe fails? your men will fail if probe succeeded land and return home? so will your men

Kapollo I/II/III/IV..... Diskovery I/II/III/IV..... Kacini, Kioneer, Koyuz, and Kir etc etc Like Kerbal said Adding "K" to every word.