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  • Kerbal Space Program
  • 76,036 Monthly Downloads
  • Supports: 0.25
  • 313,637 Total Downloads
  • Updated 10/09/2014
  • Created 05/06/2014
  • 959 Favorites
  • Project Site
  • Comments
  • Release Type: Release
  • License: GNU General Public License version 3 (GPLv3)
  • Newest File:
Support development! **

About MechJeb

Usage instructions:

Add either the AR202 surface-attached case from the Control tab or the MechJeb pod from the Pods tab to one of your vessels.Then use the button on the right side of the screen to access MechJeb window selection interface, and click on the buttons to activate the windows. The windows can be dragged anywhere on screen, and their position is saved and reused among all rockets.



KSP Forum thread

Online Manual

Support Requests

- New interplanetary transfer with porkchop plots
- Add EQ DN and EQ AN to Apoapsis maneuver
- Add "Downrange distance" info item to flight recorder
- Ascent autopilot option to limit the angle of attack
- Maneuver to change the surface longitude the vessel will be over after one orbit
- Added Force Roll option to Ascent AP
- Add more options to SmartASS Surface Mode
- Support for external gimbal extension (see Sarbian's signature for KM_Gimbal support)
- Handles engines with spool time better
- UI rescale setting
- Added a button in KSP stock AppLauncher. See settings to hide the menu handle
- Import landing site from KerbTown/Kerbal-Konstructs and RSS.
- Import Landing sites and Runways from users built files (see
- Don't reenable SmartASS after another autopilot finishes (and an option to disable it in the windows editor Misc category)
- In flight lock of some control while the mouse is over MJ windows
- Replace the arrow selector of some menu with a drop down. Those who don't like it can deactivate it in MJ2 Settings
- Various improvement to engine and gimbal torque information and use
- Various fix
Thanks to those who submited patch for this release : BloodyRain2k, Meumeu, sanedragon, Wetmelon, xytovl


First Previous Page 1 of 7 Next Last
  • #102

    Dumb Question... where is the MechJeb2RPM.dll? I needs it :\

  • #99

    after installing this you can use since its just a simple cfg that integrates mechjeb in to any stock pod/capsule and i believe it would be great if both mods would be integrated in one mod. You still need the attachment parts for the custom pods that are out there.

  • #101

    Nope, works with customs pods as well

  • #97

    Had a question about the docking assistance.  I'm trying to piece together in orbit a planetary expedition ship.  Four primary pieces being the central command and extra fuel pod, the lander pod that attaches at the top, and two fuel and engine pods that attach at the sides.

    The problem I have is that there is no way for Mechjeb to determine which end is the 'top' and which is the 'bottom' of my craft.  Docking ports, being round, Mechjeb will just jet into alignment and jet forward till they connect and dock.  This often leaves my engine pods not aligned with the command pod.  If there was a way to designate directions so that the Assist will dock properly aligned, that would be super.

    Trying to get around that, I undock, and manually shift alignment, then check the box on the Docking Assist to distregard safe distance - since they are still only meters away and it just needs to trim a bit to get back in alignment - but instead MJ goes nuts and blasts mono, draining my stores and getting it nowhere.

    Anyone encounter similar situations?  Is there a way to make MJ dock parts at a specific angle?  Is there a way to undock then redock shortly after with MJ without it spazzing out?

    Any help, advice or insight would be greatly appreciated!

  • #98

    Stormtemper. When you engage the docking autopilot, there is a check box that says force roll. Check it. The autopilot will automatically roll to the angle you set. The angle is determined when you build the spacecraft but there is no easy way to determine what is 0° or 20° or 46°... Playtest it, you'll get to it.

  • #100

    Cheers for that, I'll give it a shot.

  • #95

    hi Guys

    I have problems using MechJeb. I'm under last 32bit KSP release, and after putting Mechjeb folder in GameData, the game says that this mod is incompatible. i don't think i did something wrong, maybe there's some incompatibility problem with some other mod? i'm using B9 Aerospace, Environmental Visual Enhancements and Universe Replacer.

    EDIT: Solved, had to download previous MechJeb version.

    Last edited by Squinternauta on 10/12/2014 10:06:06 AM
  • #94

    Quick question. I would like to play multiplayer either thru the current multiplayer mod or whenever it comes standard with Kerbal. My goal is to have a station my friend and I can fly up to and rendezvous, and fly back down to the surface whenever we want.

    My question: does MechJeb provide automatic guidance to rendezvous and perhaps even dock with an orbiting object? Thanks!

  • #96

    Yes MutantDadHero, Mechjeb has both a rendezvous and a docking autopiltot. The docking one can be a bit heavy handed with its use of monopropellant, but it does work.

    To rendezvous from a circular orbit you just select a target and engage the autopilot. Then to dock you select a port on the target, as the target, and right click on the port on your ship you want to use and control the ship from here. Enable autopilot and it's done. Usually. A quicksave before docking can be prudent.

  • #93


    Mechjeb for 0.25. No more making nodes for me.  :-)

    I love you Mechjeb!

  • #90

    Will 0.24.2 version work for the new 0.25 update?


  • #92

    Works for me still. I only have Mechjeb and scansat installed at the moment though

  • #91

    Its not working for me as of yet.

  • #88

    The auto landing is not working, it just crash when landing.... will this get fixed?

  • #89

    Work well for me.

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