UmbralRaptop changed the topic of #principia to: READ THE FAQ: http://goo.gl/gMZF9H; The current version is Fuchs. We currently target 1.5.1, 1.6.1, 1.7.x, 1.8.1, and 1.9.1. <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… | <egg> also 4e16 m * 2^-52 is uncomfortably large
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<discord-> B​utcher. — @egg Do you have a list of furture versions?
<discord-> B​utcher. — @egg Do you have a list of future versions? (edited)
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<discord-> B​utcher. — Hmm, how do you get a planned burn with a solid engine to be even vaguely close?
<discord-> D​amien. — with great difficulty
<discord-> D​amien. — inertially fixed, instant impulse (because if it's going to be hilariously inaccurate it might as well be inaccurate to a level you can plan for) and trial/error
<discord-> B​utcher. — I tried that, and I was hilariously off.
<discord-> B​utcher. — It felt like I was down on dV relative to what I had planned.
<discord-> B​utcher. — Also "cannot quicksave in this scenario"?
<discord-> D​amien. — difficulty settings
<discord-> D​amien. — I've had that before
<discord-> B​utcher. — quickload is on.
<discord-> D​amien. — saving is disabled
<discord-> D​amien. — ah
<discord-> D​amien. — dunno then
<discord-> B​utcher. — Maybe I'll try turning it off and on again.
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<discord-> l​pg. — f12 debug window has its own switches for save/load (edited)
<discord-> l​pg. — One important bit Damien left out is when to start the burn. trial and error is to figure out how much ahead of 0.0 to hit it
<discord-> l​pg. — (e.g. 15s works well for gcrc)
<discord-> D​amien. — ^
<discord-> B​utcher. — Yeah, I was starting about 10s early, but I'm not even getting close, lunar intercept that misses on timing should escape, but I'm just getting into high earth orbits.
<discord-> B​utcher. — I am pretty close planning for 3410m/s for a rated dv of 3502 m/s.
<discord-> D​amien. — I find that SRB TLIs are not too bad if you're going for an impactor (just yeet it with as much velocity as you can) but more precise transfers are just not practical
<discord-> B​utcher. — I'm trying to impact.
<discord-> B​utcher. — I'm getting 270 Mm orbit.
<discord-> D​amien. — overbudget the dv then if you can
<discord-> D​amien. — on mine I had plenty spare so I had to waste it
<discord-> B​utcher. — Yes, that's what I'm doing now.
<discord-> B​utcher. — I'm plane changing somewhat which doesn't help.
<discord-> B​utcher. — This is mad. I reduce planner dV, I undershoot, I reduce it more, I undershoot by the same amount.
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<discord-> d​awidePl. — Um what to do
<discord-> d​awidePl. — Oh wait
<discord-> d​awidePl. — It's Principia window
<discord-> d​awidePl. — LMAO
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<discord-> S​tandecco. — what... what was the question...?
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPTW
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPTl
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPT8
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPT4
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPTB
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPTR
<discord-> D​amien. — Remember when only the saltiest, battle hardened ksp veterans played with principia?
<discord-> d​awidePl. — Why is MechJeb UI so freakin big
<discord-> d​awidePl. — And how to hide flight engineer
<discord-> d​awidePl. — Wrogn channel opsie
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPkA
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPI4
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPIw
<discord-> e​gg. — @Damien just came across
<discord-> e​gg. — > This also explains why RSS is so cheaty and teaches you all the wrong things, because doing it right is difficult. You installed Principia though and decided you wanted to play in nightmare mode.
<discord-> e​gg. — in the PVG guide
<raptop> ...is that true?
<raptop> Planetary defense nightmare mode: asteroids move at double speed, and respawn
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPtw
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPtK
<_whitenotifier-d13c> [Principia] pleroy reviewed pull request #2375 commit - https://git.io/JfPt1
<_whitenotifier-d13c> [Principia] pleroy synchronize pull request #2375: Documentation for the resolution of Arnold's equation - https://git.io/Je6Bg
<_whitenotifier-d13c> [Principia] Pending. Build queued… - 
<_whitenotifier-d13c> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4325/
<discord-> D​amien. — @egg principia is going mainstream 🙃
<discord-> D​amien. — Got a link to the pvg guide?
<_whitenotifier-d13c> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/4325/
<discord-> D​amien. — Does principia node execution work now?
<discord-> e​gg. — follow along on https://github.com/MuMech/MechJeb2/issues/1276 for the issues with that https://github.com/MuMech/MechJeb2/issues/1276
<discord-> e​gg. — follow along on https://github.com/MuMech/MechJeb2/issues/1276 for the issues with that (edited)
<discord-> D​amien. — Interesting. I've never used MJ to execute a manoeuvre but I'll follow the progress
<discord-> e​gg. — if you have a single manœuvre it works
<discord-> B​utcher. — @egg can we have a way to make planning solid rocket burns less terrible?
<discord-> e​gg. — seems tricky
<discord-> e​gg. — you could say « the engines from the next stage », but what if they are not all solids ? what if they have different burn times ?
<discord-> e​gg. — the UI design work seems really messy
<discord-> B​utcher. — ability to specify the instant impulse duration?
<discord-> e​gg. — it is supposed to be instant
<discord-> B​utcher. — For my planning is was the rather arbitrary 2.7s.
<discord-> e​gg. — (it is not, but mostly because it is a complete hack)
<discord-> l​pg. — it always is 2.7s, I think?
<discord-> e​gg. — but it is definitely not supposed to model anything real
<discord-> e​gg. — and it cannot be turned into something real sanely
<discord-> B​utcher. — What if there is only one engine in the next stage?
<discord-> e​gg. — if you want to model solids, you need to model solids (and very likely to have a different UI to specify the direction of the constant Δv)
<discord-> l​pg. — at some point kirk will get around to giving the gcrc a thrust curve and we'll all be miserable anyway
<discord-> e​gg. — yeah thrust curves kill all hopes of getting that right
<discord-> e​gg. — (except with closed loop guidance I suppose, but then it is @lamont you must pester)
<discord-> B​utcher. — Related, I don't get anywhere near my rates dv from the gcrc.
<discord-> l​pg. — _that_ hasn't been an issue for me
<discord-> B​utcher. — Hmm.
<discord-> B​utcher. — I have 3502 m/s but failed to get out of orbit on what should have been a lunar impact.
<discord-> l​pg. — ouch. that should be near enough to go to mars
<discord-> l​pg. — staging error? wrong reference frame?
<discord-> l​pg. — (kerbal aboard? now that'd be something)