the SEM project

[Eldar158]

hello everyone

yesterday i decided i want a very efficient rocket to go to the mun.

I decided to call it SEM-R , Super Effective Mun Rocket (later on i will maybe make other SEMs)

The target of the SEM-R is to be very small and efficient but still realistic (no chair instead of capsule and such...)

It got only 35 parts includes the launcher !!! (35 over all, without 3 sience instuments and ladder its only 31)

Still, it got like 50 spare DV to the transfer and lander for safty.

The SAM-R details:

Total weight: 13.5 ton (without launch clamp)

capabilities: going 2 way round trip to the mun and back

The SEM-R made of 3 stages

1) the launcher: 1 of my atlas 1 small hybrid launchers without the re-use equipment. got 4500 DV.

2) the transfer stage: half tire 1 fuel tank and lv-909. got 1300 DV

3) the lander : lands on the mun and then go back to earth. got 1937.18 DV

action groups:

1) toggle lander engine

2) do SCIENCE !!!

3) toggle ladder

4) null

5)null

6)null

7) decouple transfer stage from launcher.

8) decouple jets and extra fuel.

9) toggle intakes.

10) toggle jets.

How to fly it:

1) activate jets with action group or stage

2) full power and let them heat up to 120+ trust.

3) stage for launch

4) fly Straight until 8000 then start turning

5) slowly reduce power, but use how much you can the jets, then turn on the rocket of the launcher and press 9.

6) fly 45 degree until side fuel tanks are empty, than press 8

7) fly prograde until APO is 75.

8) then circulize, the fuel sould run out in pre 50 km so stage and finish with transfer stage, the launcher will return to earth that way.

9) do the usual mun transfer, when got stable 15000 meters orbit decauple lander, trust a bit to push the transfer stage to ipact path.

10) land and return to earth, do double aerobraking in 37-38 km high

11) use the parachute to land safly

NOTE: I use deadly re-entry so its safe for all users of it.

link:

http://speedy.sh/RnqHU/the-SEM-R-project.craft

pictures:

thank and have fun

UPDATE, the SEM-R 2 !!

The SEM-R 2 is smaller, more efficient overall way better, yet the hurt and the shape of the design stayed the same.

Download link:

http://speedy.sh/vsTcy/the-SEM-R-project-2.craft

change-log:

lander:

* removed 1 landing leg, now the SEM-R got 3 landing legs.

* removed 1 solar panel and re placed it.

* moved stuff around for more anti heat protraction.

* no RCS fuel in the capsule (less mass)

transfer stage:

* new engine, the 48-7s

* added a round fuel tank.

* replaced the FT-400 with FT-200

launcher:

* jets changed to turbo

* reduced oxidizer in main tank for balancing with the liquid fuel that the jets use.

eldar158

Edited January 14, 2014 by Eldar158

[Eldar158]

O and pls if you download the craft pls post a comment so i will know if the craft was good. tnx

eldar158

[rottielover]

haven't tried it out yet, but let me be the first to say congrats. I myself suffer from "over complication syndrome", and end up with 1,000 part ships to do simple mun landings sometimes. (ok maybe a bit over, but I do have a 700+ part craft called "advanced lander" that I've only used for Minmus and Mun!).

You've proven that you can perform the same tasks, and do the same science, with minimal parts. Bravo!

[Spartwo]

I find more effective rockets far more impressive than 1k+ monstrosities.

[Eldar158]

Wow tnx very much

I got just the opposite problem, when I NEED big rockets (like for going to some jool grand tour)

I just cant make huge complicated stuff because they seems unrealistic to me and too hard to make , what made me never landing a kerbal on eeloo and tylo.

[Spartwo]

Give it a try,It's not that hard(at least one way)

[rottielover]

I use deadly reentry, FAR, and TAC life support (among other mods). I did find that I had to modify you're design slightly to account for lifesupport supplies, more science experiments...

I found that even with a 45k ish areobreak (went around more than 5 times, stopped counting), I still had a couple of the science experiments burn off, but the lander can and kerbal came back fine.

One thing I've always found lacking in all the mods that have heat shields, no one came up with one for the Mk1 Lander Can... If I ever get the free time maybe I'll try and come up with something in blender (I still suck at texturing)...

[The Destroyer]

Good idea, but replace the jets with turbos- they will do much better

[Eldar158]

I will try that tnx

[rottielover]

Just gotta say I'm having a lot of fun with this design! Thanks again for sharing!

[spacehelicopters]

Dang, I can't even. It's so small!

[spacehelicopters]

Hey, your download link is saying I am forbidden to enter. Can you help with that?

[Eldar158]

Of course I can, can u send me in private a screenshot ?

[bombo1]

wow, it is tiny!

[CaptainGiblets]

Nice rocket, maybe I should try using jets for stages

[Lothsahn]

Very cool little efficient rocket!

I got just the opposite problem, when I NEED big rockets (like for going to some jool grand tour)

I just cant make huge complicated stuff because they seems unrealistic to me and too hard to make , what made me never landing a kerbal on eeloo and tylo.

You can feel free to use my lower booster, if you want:

http://forum.kerbalspaceprogram.com/threads/65982-Lothsahn-s-Super-Heavy-Lifter-250T-LKO-%28Stock%29

That should at least give you a lower stage where you can attach all sorts of cool looking ships like this one for roaming on eeloo, tylo, or whatever you want.

[Eldar158]

Very cool little efficient rocket!

You can feel free to use my lower booster, if you want:

http://forum.kerbalspaceprogram.com/threads/65982-Lothsahn-s-Super-Heavy-Lifter-250T-LKO-%28Stock%29

That should at least give you a lower stage where you can attach all sorts of cool looking ships like this one for roaming on eeloo, tylo, or whatever you want.

Wow thats a badass piece of a monster launcher

Thanks very much

eldar158

[MadJosch]

I have to say your idea inspired me a lot to try this by myself. And what shall I tell you - my 2 engine RAM turbojet rocket weighs 9.6t and lifts more than 6t into a 80km orbit.

The 3 engined variant with a mass of 11.3t lifts 10t payload up to a 80km orbit.

It is so much fun to optimize the ascent path to get the craft up there.