Recomend to set physics setting to low for play in 60 tps
Steps for going to the moon:
-fill fuel tanks(not necessary) (controlling in small room at the launch station)
-release pipe in the back of the room inside(not necessary, but it'll look not really nice)
-set compensator at ~0.85(extra engines in extra fuel tank for compensate spin moment) (keyboard at the left side from comander seat)
-turn on everything which can be useful) (pumps, lights, etc) (buttons located near ro right seat)
-set jet engine throttle at ~5 rps (when you're on the earth you can use it for fly) (during the whole flight you can use it like genrator)
-move rocket eng throttle at 1, but not turn on the key for it! (after launch it'll automaticly turn on)
-turn on stabilization(seat button 5), and set hold angle at ~90 (keyboard at the left side of control panel)
-spin the launch key
-after getting speed which u need, u can decrease rocket eng throttle at ~0.5(not recomend use full power during long time, it's spending too much fuel)
-during the flight use hold angle system for set direction to the moon
-during flight check the fuel in extra tank and main tank, when you'll be almost at the moon, you recomned to have full main fuel tank to have fuel to flight back)
-before landing release extra fuel tank(key at the left side from comander seat)
-use moon map for decrease horizontal speed(there's line on the map, it's your speed vector), then use VTOL engines for soft land on moon(button 6)
-turn off all electicity stuff for not spend energy for nothing and u can go out
-use rover for some missions
-go back by similar way
-when you're gonna land on earth, and u don't have rover, have less rocket fuel, u can use VTOL engines for landing, in other case recomend to use jet engines for horizontal landing
p.s. in the back of the main room in space ship has custom gas control system, you can use pipes for get more air to the room, or to move air to some others tanks