Mun, Minmus And Back, One Flight, Help?

[The Jedi Master]

My brother wants me to make a ship that can land on the Mun, take off again, land on Minmus, take off AGAIN and return to Kerbin. Now, I've never returned from ONE moon, let alone two, so I need help. How should I go about this? Should I use docking, or just a really big rocket? Do I need refueling stations around the moons? And what should I call the program? :sticktounge: HELP!

[SoldierHair]

You could do Kerbin-Minmus-Mun-Kerbin.Use the Mun to slingshot yourself to Minmus.

[Derref]

Yeah, I think that if you used a ship that you either dock around kerbin, undock to land on the Mun, redock and land the whole structure on minmus after that, could be fun to try, thats my next mission.

[Cykyrios]

Kerbin's moons are "not that big of a challenge", if you know what you are doing. Since you are still a beginner, you should probably aim at a single moon for the time being (since going to the second moon will require a Hohmann transfer at some point, with an inclination change, so you should practice those).

My way of doing it would probably be a single rocket; actually, going from Kerbin to the Mun requires almost exactly the same amount of fuel (with a given rocket) as going directly to Minmus. Landing on either moon and going to the second one wouldn't require that much delta-v, since the most you'll require will be for liftoff.

Just build a little bigger than a "to-the-Mun-and-back" rocket, and it should do the job.

Edit: setting up a refuelling station would be overkill imo, but it would allow you to build a smaller rocket, even smaller than a simple Mun rocket, since you could use part of the upper stage to orbit, and then refuel.

Going to the moons from there should then be doable.