Upcoming Downtime for Server Updates 2021-10-08 16:53

Starting: 2021-10-20 8:00 UTC

... SpaceDock will be unavailable for a little while to install several fixes and improvements:

... and much more, full details on GitHub.

NOTE: The downtime has been postponed by one week.

Kramax Autopilot Continued

Autopilot for spaceplanes

License: CC-NC-SA-4.0

Game Version: 1.12.2

Downloads: 38,477

Author: linuxgurugamer

Mod Website: Forum Thread

Followers: 78

Information Changelog Stats

From the original mod:

Recently I started flying spaceplanes in Kerbal and discovered I could never land them successfully. My keyboard flying skills are sub-par. This despite being an instrumented rated pilot of real planes.

I found a very good autopilot mod by Crzyrndm called "Pilot Assistant" (see thread). But it did not have any course following abilities. I have taken the source code for Pilot Assistant and heavily modified it to add course guidance (both horizontal and vertical) so that it can autoland a spaceplane on the KSC runway. Many thanks to Crzyrndm--this mod would never have happened without the excellent starting point. Note that I did not keep all the capabilities of Pilot Assistant--I was very focused on auto-landing and things that were not really needed for that were omitted.

Flight plans can be loaded from configuration files located in the GameData folder. There is currently no capability to create new flight plans on the fly within the game, but you can edit the GameData/KramaxAutoPilot/FlightPlans.cfg file and add flight plans that way. Look at GameData/KramaxAutoPilot/DefaultFlightPlans.cfg for the format of the flight plans. The "Refresh" button on the flight plan load/save dialog will reload from that file so you do not have to restart the game every time you change a flight plan.

https://youtu.be/wB7rQxA_PZk

Basic Instructions

You can use the autopilot to depart from KSC runway 09 as well as land on it. Here is a basic flight using the autopilot. You start lined up on KSC RW09.

Departure

Show the autopilot window by selecting the airplane icon from your toolbar Press the "Load/Store" button next to the "Flight Plan" button. This will display the flight plan loading window. Select the plan named "KSC DEP 09". This is a flight plan that takes you straight out on a heading of 090 to space. You can close the flight plan loading window now. Select the horizontal mode "NAV" and enable horizontal mode by selecting the button "Roll". The autopilot should track straight down the runway now. I normally use "pitch hold" mode for vertical control on departure. You can set this up for use after rotation by selecting the "Pitch" button and entering a desired pitch up amount (10-30 degrees, depending on your thrust to weight ratio). Start your takeoff. It should track down the runway and after you liftoff, turn the vertical mode autopilot on by pressing the "Target Pitch" button. It should pitch up to your preset pitch value. It should retract your gear at 150m of altitude. Now just control pitch angle to what works for your vehicle. When you get to high altitude where aerodynamics more or less stops, you should turn off the autopilot modes by pressing the "Roll" and "Vertical" buttons. Hopefully you get to orbit Landing

You need to de-orbit. For KSC RW09, I found that when coming from an 80km orbit, a 100m/s retrograde burn just before I get to the huge impact crater seems to work well. Depending on how fast your craft decelerates you may need to burn slightly earlier or later. Setup the autopilot by loading the landing flight plan. You want to open the flight plan load/save window and select "KSC ILS 09" (ILS stands for "instrument landing system"). This flight plan has an initial point to aim for that is named "MAXKY". It is at 12000m, more or less on the equator about 75km West of KSC. Descend into the atmo and try to stay on a heading of 090. I generally enable the autopilot around 20000m altitude. I initially will enable it in Bank mode (level) and pitch hold mode (4 to 6 degrees). As you near 12000m altitude enable NAV mode and altitude hold of 12000m. When you get very close to MAXKY, enable GS mode to follow the vertical guidance. Now setup your landing speeds. Open up the "Approach Speeds" pane at the bottom. Change the speeds to match your craft. You want to land as slow as possible, so make your final speed something that is a good margin above stall speed. After passing MAXKY you can enable auto-throttle "Landing" mode to hold current speed and then decrease it to match the approach speeds as it heads for the next fixes. At 500m (above ground) it should auto-lower your landing gear. But a good pilot makes sure he has 3-green before touching down! If all goes well it will cut your throttle right over the threshold, touchdown, and turn on max braking.

Version 0.4.0.1 for Kerbal Space Program 1.12.2

Released on 2021-09-29

Added AssemblyFileVersion Updated version file for 1.12

Download (66.44 KiB)

Version 0.4.0 for Kerbal Space Program 1.9.0

Released on 2019-11-03

Updated for KSP 1.8

Download (85.56 KiB)

Version 0.3.7 for Kerbal Space Program 1.7.3

Released on 2019-07-27

Added InstallChecker
Updated AssemblyVersion.tt

Download (83.48 KiB)

Version 0.3.6.2 for Kerbal Space Program 1.6.0

Released on 2019-01-09

No changelog provided

Download (82.06 KiB)

Version 0.3.6.1 for Kerbal Space Program 1.5.1

Released on 2018-10-28

Version bump for 1.5 rebuild

Download (82.08 KiB)

Version 0.3.6 for Kerbal Space Program 1.4.5

Released on 2018-09-29

Added FlightPlanManagerWindow Scrollbar

Download (65.81 KiB)

Version 0.3.5 for Kerbal Space Program 1.4.2

Released on 2018-04-19

Updated for 1.4.1
Added support for the Clickthrough blocker
Added support for the Toolbar Controller

Download (79.62 KiB)

Version 0.3.4 for Kerbal Space Program 1.3.1

Released on 2017-10-13

Fix for Heading hold not working., thanks @DavidShade added extras directory and flight plans

Download (62.34 KiB)

Version 0.3.2.3 for Kerbal Space Program 1.3.0

Released on 2017-05-30

updated for 1.3

Download (58.73 KiB)

Version 0.3.2.2 for Kerbal Space Program 1.2.2

Released on 2016-11-29

Added code to put version into assembly version info

Download (58.74 KiB)

Version 0.3.2.1 for Kerbal Space Program 1.2.1

Released on 2016-11-02

No changelog provided

Download (58.75 KiB)

Version 0.3.2 for Kerbal Space Program 1.2

Released on 2016-10-26

No changelog provided

Download (58.73 KiB)

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