Can get to Duna, but not back to Kerbin.

[Rainbow Dash]

I need help, i have been able to make it to duna with no problem, but i have trouble with getting to Kerbin. Can anyone help me?

[draeath]

Get back into orbit around Duna if you've landed. Then, keep raising your apoapsis until you see (via orbit thingy on map - hopefully you've got your conics mode to '3') that you will escape Duna into solar orbit. Once in solar, you need to tweak your orbit so you run into Kerbin - just the same way you did to reach Duna. At this point you should need comparatively little energy - providing your timing and aim is right. Your window however may be hundreds of days in the future though...

[ramses]

Get into orbit from Duna at 270 degrees as opposed to 90. Also have a look at olex calculator. Very handy!

[Vanamonde]

Not 270 degrees! This confusion arises endlessly. Trying to lift off opposite of the world's rotation does nothing but waste fuel overcoming its rotational speed, while going with it gives you a little speed boost. Once you're in orbit, the distances involved mean that getting to a moon or other world is just as easy either way, so there's no advantage to going retrograde.

[elmarko]

Not 270 degrees! This confusion arises endlessly. Trying to lift off opposite of the world's rotation does nothing but waste fuel overcoming its rotational speed, while going with it gives you a little speed boost. Once you're in orbit, the distances involved mean that getting to a moon or other world is just as easy either way, so there's no advantage to going retrograde.

Oh god this stickying so badly.

[RoboRay]

Get into orbit from Duna at 270 degrees as opposed to 90. Also have a look at olex calculator. Very handy!

[jfx]

You should put that pic on reddit and cash in on all that sweet karma.

[draeath]

Nice way to put it!

[Will_hynes]

Lol, i have a lander on Duna, but i'm afraid of trying to return...

[elmarko]

Post of the year.