Jool and vall

[Fluffy crocodile]

So i’m wondering, what is the best way to create a maned mission to jools moons. For example, should i do apollo style or a big old lander? I am also wondering the must fuel efficent way to get into a jool orbit. Also how much delta v is required to get to jool, land on laythe and return.

[FleshJeb]

Welcome!

Apollo-style could mean a few things:

• If you mean a two-stage lander, then maybe for Tylo and Laythe. For the other three, it's not necessary.
• If you mean a lander that detaches from a mothership, lands, and returns to the mothership (and refuels for the next landing), then yes, definitely.

The most efficient way to capture at Jool is a gravity brake using Tylo:

• https://wiki.kerbalspaceprogram.com/wiki/Tutorial:_Gravity_Assist#Gravity_brake
• A tutorial on Reddit

Delta-V:

 

[Chel]

A really useful mod for calculating dV is KER (Kerbal Engineer Redux). It displays all kinds of useful information, and is basically a must-have. It will really help with your plans in the Jool system

[Kerbinchaser]

There's also this:

And as Cat said, KER is a must-have mod. It doesn't affect performance and it's so incredibly useful. 

[Chel]

1 minute ago, Lo Var Lachland said:

There's also this:

And as Cat said, KER is a must-have mod. It doesn't affect performance and it's so incredibly useful. 

Why thankyou!

[Kerbinchaser]

11 minutes ago, The_Cat_In_Space said:

Why thankyou!

You bet. 

[GRS]

Just saying, if you're MAD, you can simply EVA in orbit, then land, did that to Pol, and Gilly of Eve, because i'm MAD, doing so to Bop is possible, but i never did it because i'm not MAD enough, Vall is like Mun, but a little harder, since its high G of 0.235 while Mun is like 0.16, Laythe needs a fairly big lander, Tylo can be done with less than 3 ton lander.

[cubinator]

Big nuclear motherships are always fun.