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Krafpy / KSP-MGA-Planner

An online tool providing automatic design of trajectories with multiple gravity assists for Kerbal Space Program.
https://krafpy.github.io/KSP-MGA-Planner/
GNU General Public License v3.0
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Suggestion to include initial inclination and LAN to the planner #38

Open daantimmer opened 10 months ago

daantimmer commented 10 months ago

The in-game transfer window planner-mod has the option to set initial orbit inclination and will provide you with the correct LAN to launch and makes sure the ejection inclination is never lower than the inital orbit inclination.

It would be very nice if your tool could do this too

Krafpy commented 10 months ago

This would indeed be useful and give better delta-Vs ! I can implement it in several ways: either select the inclination that matches the next body's orbit inclination, or make the initial inclination part of the optimization process to try to find the best one that accounts for the whole trajectory (not sure of how this would perform, though).

I'll try to work on it.

daantimmer commented 10 months ago

It'll definitely make things more accurate to use the inclination as a minimum. Especially when using RSS, because the "normal" launch sites have a not so optimal launch location. Like the KSC, sits on 28.5deg. it would be less than optimal to have an escape trajectory with an inclination of, say, 16deg. IIRC baikonur sits on 55 or so.