Yep, i already built a manned lander with 9km/s dV, but i can't get it to ground.It has asparagus staging with 6 aerospikes and one LVT45 rocket in the middle.The main part of lander has Apollo style staging.Whole lander with full fuel tanks have about 2.2 T/W ratio.Also it uses 6 big blue parachutes. I just waste too much of fuel on descent, or my parachutes break whole ship, or i land in a water,... When i launched this lander from Kerbin i got to Jool orbit(for fun).. What am i doing wrong ?