(Request) Help on a designing a interplanetary lander.

[halosos]

Hey, I'm preparing to send 6 Kerbals to Duna.

I have my Interplanetary transfer vehicle (IPTV) already in orbit

But I cant get my landers into orbit, to dock.

Could someone help?

The specs are:

Able to hold 6 Kerbals, preferable using landercans

Able to stack for example, three, 2 manned landers

Enough RCS fuel for orbital Rendezvous

A launch stage capable of getting to lander to the IPTV without using any of the landers fuel.

Able to be remotely controlled via Probe, with solar panels or Radial thermal generators

Thanks in advanced

[Jeb Cubed]

I could use one of these to. I have a launcher for it and a lander idea. Is there a part limit I should know of before working on it?

[maltesh]

Back when I was still running my Dunar fleet in 0.21, this was the lander I wound up building using Extraplanetary launchpads on Ike to transport six Kerbals from place to place over the Dunar Surface.

Its fuel supplies were four FLT-400 tanks and two FLT-100 tanks, seated six, and had a clamp-o-tron sr on the bottom so that, if necessary, it could tow its own clamp-o-tron sr capped Jumbo tank fuel reserve, if it needed to make an interplanetary trip. Upon powerlanding on the Dunar surface, it still had about 2000 m/s of delta-V left to return to orbit on.

[maltesh]

Screw it, had the parts so I threw it together.

The lander is absolutely bare bones in the craft file. There are no lights, no antennas, no scientific equipment. WHen fueled and detached from its tank, it has over 4 km/s of delta-V, though it's acceleration, at 0.56 gees, may be a little low to trust on the typical manual Dunar landing.

One special bit about the lifter. It's asparagus-staged, but the central Skipper is held on by a Clamp-O-Tron Sr docking port. Fly a reasonably-efficient ascent, and once your apoapsis is where you want it to be, undock the central Skipper and complete circularization on the lander's LV-Ns. The result should be a mostly-full containerized Rockomax Jumbo attached to the bottom of the lander by a docking port, and the lander's tanks can be topped off from that.

On the test flight I threw together, the lander-orange tank combination made it to orbit with more than 8km/s of delta-V available, which is probably enough for the lander to tow its reserve tank to Duna, engine-brake into orbit, detach and land, return to orbit and reattach, go back to Kerbin, and engine-brake into LKO.

https://dl.dropboxusercontent.com/u/4057920/ksp%20shipshare/0.22/Duna%20Lander%20Transport%20System.craft

[Mesklin]

Here is medium Dune lander "Cucumber Tin". It has about 2 km/s that is enough for land from base orbit 70x70 km and climb back with 200 m/s of dV for rendezvous operations. Two crew members are inside and you can stack this landers as many as you wish.

Mass - 9.33 t

Parts count - 38

Ascend plan:

1. Full throttle, turn to 45 degrees

2. Wait until vertical speed reach about 100 m/s

3. Turn to 30 degrees and wait until speed reach 500 m/s

4. Turn to 0 degrees and wait desired periapsis (60-70 km), then cut throttle

5. Implement circularization burn

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Edited November 24, 2013 by Mesklin

[halosos]

Thanks guys, you have helped the my first manned duna mission become a success!

[halosos]

the lander was built and sent into orbit, its pretty much the same design aside form a bit of extra RCS fuel, and a different docking port on the top

Here is the transfer stage, lander and science lab ready for the duna transfer window in 3 days

Edited November 24, 2013 by halosos