I am woefully unprepared to use gravity assists

[esmenard]

40 minutes ago, magnemoe said:

Braking burn at Tylo to enter an fitting orbit is around 2.5 km/s, has 2.7 total on the worst case
4 bases, best has 3.8 km/s so plan to land that on Pol or Bop and then refuel the basket case. 

I forgot to factor in extra stuff like an space plane to use on Laythe in the dV calculations. Part of the fuel was carried as ore in the ore tanks so i had to calculate. 

 

If I understand things correctly, the best place to do a reverse gravity assist is at periapse. So try to pou your periapse on Tylo's orbit, and then tweak the maneuver nodes to get an intercept there. If Tylo doesn't work, try Laythe. If you don't get the encounter at periapse, you will need a burn to either brake or raise the periapse above the atmosphere.