Last stop Moho,

[FREEFALL1984]

So, I've reached the end of my current KSP career, and with the exception of Moho and Tylo, I've successfully landed a kerbal on every planet and returned them, (apart from Eve where sando kerman has been living happily for the past 24 years)

I have heard a rumor that the two most difficult bodies in KSP are in fact Tylo (for its kerbin like gravity but no atmosphere) and Moho, for its inaccessibility and high temperature and ridiculously thin token atmosphere, which means a soft landing with engines is necessary and you have to be careful to avoid overheating them.

So before I depart on these missions and send brave Jeb into the unknown for the final time, is there any advice you can give me, anything I should be aware of and anything I should look for when selecting a landing site

[Red Iron Crown]

Moho's challenge lies in getting to it, it takes a ton of dV to get an encounter due to its much lower orbit and inclination. Gravity assist from Eve is highly recommended.

Once there, the landing is not that bad, slightly harder than the Mun. There is no atmosphere, even token, so it's a powered descent. Its very slow rotation means there's not much difference between prograde and retrograde descent/ascent.

Return to Kerbin faces the same challenges as getting to Moho; big orbital energy and inclination change.

[Epthelyn]

Yeah...that information you have there is no longer relevant. Moho lost its superheated atmosphere in 0.18.

So you need a powered landing, but the gravity is fairly low (a mere 2.7m/s/s (0.275g)) and the only tricky part is getting there and slowing down, a process which is considerably cheaper if you make use of any appropriately timed launch window.

[Kasuha]

Return to Kerbin faces the same challenges as getting to Moho; big orbital energy and inclination change.

Return to Kerbin is far easier thanks to the fact that you can aerobrake in Kerbin's atmosphere. You just have to aim well.

You need over 4000 m/s dv to get to Moho from Kerbin.

You need about 2000 m/s dv to get back.

With Eve gravity assist, it is 3000 m/s to Moho and 1500 m/s back.

[Red Iron Crown]

Forgot about aerobraking, you're right of course.

[KerikBalm]

Its not that hard...

Just take a Mun Lander, a nuke stage with 3,000 dV, and put it atop an orange tank with nuke engines.

Hoist the whole thing into orbit (I used SRBs + skipperand radial engine asparaguses, but now... SLS parts).

It was a bit tricky to get the intercept, but it was actually the first interplanetary mission I did in Career mode (because it was the first transfer window that opened... on day 6 Earth time/the old clock time), I scienced as much as I could for that day 6 launch... still didn't have mainsails or orange tanks (so I stacked half orange tanks).

I did have ions and nukes, and it worked out fine in the end.

Eve was harder IMO, I still haven't tried Tylo (or any moon of Jool aside from Laythe, or gilly, or Dres or Eeloo, or even Ike, altough I've been in its SOI many times)