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[1.12.4] 6S Service Compartment Tubes (SCT) v1.3.99.0-adoption `<Thank you nothke>` edition [07 Nov 2022]


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Service Compartment Tubes KSP version License
Curseforge GitHub SpaceDock CKAN

6S Service Compartment Tubes (SCT)

It's a tube.. and a hull... and a cargo bay... and a.. well, just about everything. And it is only 2 PARTS!!! For Kerbal Space Program.

By zer0Kerbal, originally by @nothke

adopted with express permission and brought to you by KerbSimpleCo

Service Compartment Tubes Hero

Introduction by Nothke

However I tried making my KSP rockets as smooth looking as possible, it is very hard, you always need to put a tonne of stuff on top of the hull, be it RCS tanks, mechjeb, life support packages, batteries..

And then, I noticed something quite astonishing that I never did before when dissecting real spacecraft designs.. Ya’ see.. Real spacecraft use something they call “service compartments” aka “service modules” or something Russians would call “instrument agregat”, an unpressurized module where they store all the stuff we would otherwise put on the top of our hull! So I thought.. WAIT A MINUTE, Y U NO IN KSP??

So then, I came up with the simplest design I could. I call them..

6S Service Compartment Tubes!

  • Why “6S”?
    • Simple,
    • Sturdy
    • Stock Styled
    • Seamlessly Stackable
  • It’s so short! It’s useless!
    • I’ve modeled it so that spherical RCS tanks could fit inside. Most of the other stuff like mechjeb, flight engineer etc, are not bigger than spherical tanks and they can all fit inside.. Together.
    • If you need more space.. Just stack them!!! (check the pictures for tricks) Also, when stacked to double, the 1x1m structural panels fit right inside! Just put whatever you need on them
  • There seems to be a door, but I can’t open it!
    • You can only open the door manually during EVA (no servos I’m afraid, to keep it reliable and simple), so you can pick up or leave bags or KAS stuff you store inside. Also useful when transferring fuel from the tanks inside (you could do this on the other hand by zooming the camera inside the compartment, although this might be wonky and frustrating).
  • Any future plans?
    • There are some texture quirks, so I might do an art pass later on. I don’t plan adding more parts.
  • The tubes appear first in “general construction” in the Tech tree cause before that, you practically have nothing to put inside.
  • Thanks to Snjo for Firespitter, and well, listening to my irritating ideas xD
    • The firespitter.dll is bundled in the pack. If new Firespitter versions appear you should freely overwrite the old one.

See more


Help Wanted

  • Compatibility patches
  • Contracts for these glorious parts
  • Variant Textures
  • Model updates to Unity 2019
  • Marketing Images and Videos such as hero shots, animated gifs, short highlights
  • Have a request? Glad to have them, kindly submit through GitHub.


  • English English
  • your translation here

HELP WANTED - See the README in the Localization folder or the Quickstart Guide for instructions for adding or improving translations. GitHub push is the best way to contribute. Additions and corrections welcome!

Installation Directions 1


Use CurseForge/OverWolf App (currently does not install dependencies)

CurseForge/OverWolf App

I take no part, nor am I interested in maintaining the CKAN mod metadata for my mods. CKAN is a great mod for those that can't use zip tools. If you are having issues please let the CKAN people know and refer to the CKAN thread. My support of CKAN extends as far as me checking the checkbox in Spacedock when I upload. Beware, CKAN can really mess up though it tries very, very, very hard not to.







parts, config

red box below is a link to forum post on how to get support

How to get support

Be Kind: Lithobrake, not jakebrake! Keep your Module Manager up to date

Credits and Special Thanks

Legal Mumbo Jumbo (License provenance)


Current (1) - zer0Kerbal

Forum: Thread - Source: GitHub
License: License License


All bundled mods are distributed under their own licenses
All assets, including but not limited to: animations, models, sounds and textures are distributed under their own licenses

see Notices.md for more legal mumbo jumbo

Original (0) - Author: Nothke

Forum: Thread - Download: CurseForge - Source: CurseForge
License: License License


DONATIONS: How to support this and other great mods by zer0Kerbal


Completely voluntary, absolutely amazing, and really does help me out a lot! quote from cybutek cybutek creator of Kerbal Engineer

Support Github Sponsor Patreon Buy zer0Kerbal a snack

and it is true.

Connect with me


Track progress: issues here and projects here along with The Short List


zer0Kerbal | kerbalspaceprogram.comzer0Kerbal | CurseForgezer0Kerbal | redditzer0Kerbal | Patreonzer0Kerbal | YouTubezer0Kerbal | Twitchzer0Kerbal | PayPalzer0Kerbal | Buy Me a Coffeezer0Kerbal | Twitter


  1. this isn't a mod. ;P↩︎

  2. may work on other versions (YMMV)↩︎

  3. Be Kind: Lithobrake, not jakebrake! Keep your Module Manager up to date!↩︎

Edited by zer0Kerbal
update links and lasso the birds
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