Project TrajectoryOptimizerMFD open for testing

Hi all,

I've attached here a public beta of TrajectoryOptimizer, an MFD that searches for
interplanetary transfer trajectories — departure/arrival dates and the ΔV to
fly them — using Orbiter's own ephemerides. It's a planning tool: it finds the
trajectory, you fly it.

This is a major new version. Highlights:

- Faster, and far more consistent — the same plan returns the same quality
result run to run.
- Any body with at least two orbiting children can be the reference body, so
Sun-centred interplanetary transfers AND moon-to-moon transfers around a
planet both work.
- No more BSP files — body positions come straight from Orbiter's own models.
Nothing to generate, nothing to install.
- Custom solar systems supported out of the box — custom stars, fictional
systems, any scale, zero configuration.
  • Export a solved plan straight to TransX or InterplanetaryMFD.
  • Deep-space maneuvers (DSMs) supported, for Cassini-style gravity-assist tours.
  • Press H on any page for context-sensitive help.
  • A work-in-progress manual is included in the download.

Install: unzip into your Orbiter root folder, tick TrajectoryOptimizer in
Launchpad → Modules, then bring up an MFD and press T.

Please test and report back here. I'd especially like to hear:

  • Any impact on Orbiter's frame rate?
  • Any unexpected behaviour?
  • Suggestions, comments, or bugs?

Thanks in advance for trying it and for your feedback.
 

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This looks seriously impressive!:)

Quick lunchbreak test, O16/24, Win10, default DG

The Doc looks good, sounds like you've tried to cover any possible loopholes/loose ends- very comprehensive.(y)
Installation ok...
BUT I'm not getting past the start!

"Open any MFD, press SHIFT and the MFD's select key, then press T." - This is a little ambiguous?

If I start the MFD I get a CTD, log attached.
If I open the left MFD, press SEL, and left-shift hold + "T" it opens the DG atmo autopilot?
Holding the left-shift and the MFD's select key just cycles through SEL options?

Edit: Tried the above with 2 other vessels, no luck.

Not sure where the error is?

Module TrajectoryOptimizer.dll [Build 260723, API 160828]
TrajectoryOptimizer: version 2.5.0-beta1 (built Jul 23 2026), MFD mode registered on key T.
============================ ERROR: ===========================
Failed loading module Modules\Plugin\TrajectoryOptimizer.dll (code 1114)
 

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