how much delta v does aerobraking around jool save?

[creator1629]

i am currently planning several missions to get to the moons of jool, and for this i will first get into an orbit around jool then make my way to each moon from there. what im currently trying to compute is how much delta v i will need to get into each moons orbit. but if i use aerobraking to get captured into an orbit around jool first i will save a bit of delta v, but my question is approximately how much will i save? so that i can factor that in to my current ship design. also what is the ideal altitude to areobrake around jool without crashing into it, 100 km, 110km, 120 km?

[chemieglennie]

I did this visiting Laythe. Aerobraking should save about 2500dv. You might want some of that to raise your Pe after your aerobraking though, so I would use 2000dv saving in your design to be on the safe side.

I did it at 120Km, which I think would have taken 2 orbits but I got a lucky encounter for Laythe so went straight in (you can aerobrake there too).

Best to aim too high (do another orbit) than too low (fiery death). Quick save and try a few different heights.

[creator1629]

oh ok, wow 2000 delta v is a lot. youre right, ill give it a go at 120 km and see if that is enough to stop me, thats what quick save is for. i agree, better a few extra orbits than a fiery crash