egg changed the topic of #principia to: Logs: https://esper.irclog.whitequark.org/principia | <scott_manley> anyone that doubts the wisdom of retrograde bop needs to get the hell out | https://xkcd.com/323/ | <egg> calculating the influence of lamont on Pluto is a bit silly…
raptop has joined #principia
raptop has quit [Ping timeout: 207 seconds]
<queqiao->
⟨clayel⟩ i think it will consider rcs thrust if its the only thrust available? idrk if itll consider it when its not the only thrust tho
raptop has joined #principia
raptop has quit [Ping timeout: 183 seconds]
raptop has joined #principia
raptop has quit [Ping timeout: 207 seconds]
raptop has joined #principia
raptop has quit [Ping timeout: 190 seconds]
raptop has joined #principia
<queqiao->
⟨maraganina⟩ Any tips for doing an unguided spin stab lunar collider using principia? I'm always missing the moon since the mass of the final stage is different from the vessel used for the flight plan
<queqiao->
⟨kuzinat0r⟩ Just kill the guided avionics and don't decouple
<queqiao->
⟨kuzinat0r⟩ Or implement staging for principia's manuever planner)
<queqiao->
⟨test_account9540⟩ Plans as instant impulse, sim a bit to find out when you actually need to start the burn (will be a few seconds before maneuver start time indicated by Principia)
<queqiao->
⟨test_account9540⟩ The shorter the burn, the easier it is (close to mid-burn). With longer burn such as aerobee, not easy at all.
<queqiao->
⟨clayel⟩ use slow motion and cut the unguided engine off early :D (not officially endorsed)
<queqiao->
⟨maraganina⟩ Guys I did it! Thanks a lot. I used both planning with the instant impulse and 1% slow motion lol. I also reduced the force on the decoupler and added extra thrusters to spin faster
<queqiao->
⟨maraganina⟩ How do I do that?
<queqiao->
⟨maraganina⟩ Oh you're telling me to add that as a feature
<queqiao->
⟨maraganina⟩ I wish I was capable but matlab is enough anger for me
<queqiao->
⟨kuzinat0r⟩ It was a joke. It's not an essy task to add a featere to the system you know nothing about
<queqiao->
⟨kuzinat0r⟩ * feature
<queqiao->
⟨Joshua Wood⟩ I most want the ability to set a burntime in a lil box alongside the current options :p
<queqiao->
⟨Joshua Wood⟩ +sounds difficult though
<queqiao->
⟨maraganina⟩ Also input wet and dry mass, that's all that's needed I guess
<queqiao->
⟨Joshua Wood⟩ i guess? wet and dry mass isn't THAT easy to figure out sadly
<queqiao->
you may aswell skip time and just do thrust + masses :p
<queqiao->
⟨Joshua Wood⟩ i guess? wet and dry mass isn't THAT easy to figure out sadly
<queqiao->
~you may aswell skip time and just do thrust + masses :p~
<queqiao->
no wait you need time also
<queqiao->
⟨maraganina⟩ You can just check in VAB
<queqiao->
⟨maraganina⟩ Then you input wet and dry mass, burn time, and either input thrust let it use the active engine as it works now
<queqiao->
⟨Joshua Wood⟩ if you can use active engine as now then there is no point
<queqiao->
the main problem is completeing nodes with spin stablised stages that need ullage
<queqiao->
is a pain to get them just right
<queqiao->
⟨maraganina⟩ Yeah that was my problem. I had an empty near-earth core that just had the thrusters to spin the whole thing and then the final stage would go off. If I could overwrite the vessel mass, all would work