Issues

• Crash loading a save from Lehmer into the flight scene

  mockingbirdnest/Principia#4695 · Filter by author OutOfControl64 opened on Oct 3, 2026
  2

• Globally optimize the timing of burns

  mockingbirdnest/Principia#4614 · Filter by author eggrobin opened on Jun 30, 2026

• Make it possible to display two flight plans

  mockingbirdnest/Principia#4613 · Filter by author pleroy opened on Jun 30, 2026

• Wrap the BFGS implementation in Principia with an Augmented Lagrangian algorithm, and update the burn optimizer to use it

  mockingbirdnest/Principia#4612 · Filter by author lamont-granquist opened on Jun 29, 2026
  2

• Pause the game when showing the "apocalypse" dialog

  mockingbirdnest/Principia#4605 · Filter by author pleroy opened on Jun 16, 2026

• The additive shaders that Principia uses for orbit lines cause them to shine brightly when used with TUFX's bloom and HDR

  mockingbirdnest/Principia#4566 · Filter by author Clayell opened on May 10, 2026

• Principia highly non-functional (returns to stock orbits and physics) after third or forth craft spawning (existing crafts work fine)

  mockingbirdnest/Principia#4523 · Filter by author magicboss812 opened on Apr 18, 2026
  1

• Tracking issue for Чебышёв-Picard iteration

  mockingbirdnest/Principia#4440 · Filter by author pleroy opened on Feb 16, 2026

• Some kind of warning when orbit path intersects celestial

  mockingbirdnest/Principia#4432 · Filter by author robertbarthellgaray opened on Feb 11, 2026
  4

• Principia Flight Plan Optimizer Sticking on Inclination-Only Change

  mockingbirdnest/Principia#4420 · Filter by author DRVeyl opened on Feb 6, 2026
  4

• Optimization in the target frame

  mockingbirdnest/Principia#4340 · Filter by author pleroy opened on Nov 1, 2025

• Simultaneously view periapsis to body and inclination/nodes relative to specified satellite

  mockingbirdnest/Principia#4339 · Filter by author simon-dima opened on Oct 31, 2025

• Set SAS to "stability assist" on reference frame change

  mockingbirdnest/Principia#4338 · Filter by author simon-dima opened on Oct 31, 2025

• Make the Manoeuvring frame default to inertial of the current SOI

  mockingbirdnest/Principia#4247 · Filter by author ezsnackeur opened on Jul 18, 2025
  3

  

• Sliding new maneuver marker changes view from CB to ship

  mockingbirdnest/Principia#4192 · Filter by author Krazy0 opened on Mar 30, 2025
  5

  

• Ability to change the trajectory prediction duration while landed

  mockingbirdnest/Principia#4177 · Filter by author ezsnackeur opened on Mar 7, 2025

• A hotkey to show/hide the main window

  mockingbirdnest/Principia#4156 · Filter by author eggrobin opened on Jan 2, 2025
  2

• Principia DLL won't load on macOS Sequoia

  mockingbirdnest/Principia#4130 · Filter by author rsparkyc opened on Nov 4, 2024
  28

• Trajectory planning before launch (or spacecraft design)

  enhancement
  mockingbirdnest/Principia#4068 · Filter by author eggrobin opened on Aug 16, 2024
  3

• Readme contains wrong info

  documentation
  mockingbirdnest/Principia#3998 · Filter by author PiloniA opened on May 7, 2024
  3

• Suggestions for rotating-pulsating reference frame

  mockingbirdnest/Principia#3915 · Filter by author KSPSTAR opened on Mar 25, 2024
  5

• Singularity visual issues as a result of principia

  mockingbirdnest/Principia#3769 · Filter by author Tachonka opened on Sep 24, 2023

• Disable target clearing when double LMB-click in map

  mockingbirdnest/Principia#3763 · Filter by author Krazy0 opened on Sep 3, 2023

• Feature request: descriptions of items in the orbit analyser

  mockingbirdnest/Principia#3745 · Filter by author al2me6 opened on Aug 17, 2023
  3

• Certain components can have the wrong effect on the stability of an airplane

  mockingbirdnest/Principia#3741 · Filter by author RobotV1 opened on Aug 11, 2023
  1