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Less Lag at Laythe?


ComradeGoat

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I've just put a station in orbit around Laythe, and flew one of my large interplanetary rockets to it, and docked.

All the time I did this, the time indicator stayed green. Same thing at Kerbin or Duna and it's lag city. Try it at the Mün and it's painful.

Has anyone else noticed this? Presumably it's to do with Laythe and Jool, the two planets in view, having very simple surfaces so there isn't as much for my graphics card to do?

I like this new found smoothness, anyway. Think I'll move to Laythe!

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:D Macey Dean started it and now everyone follows... But there can be only one :D

Just kidding, I will look into it, if it less laggy as I start bringing my capital ships there

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Well, to be Laythe efficient, you got to master orbital and interplanery juggling - set some ships to transfer and as the fly to Jool do some Launches in Kerbin SOI, do some Laythe base management and missions...

HoY: Well, there is always a chance, he is skilled pilot - he may fire 2 of those SRBs without relasing them to get a capture. I have some experience flying that ship inside Jool system and I don´t think he can do much with RCS. And well, he won´t last long in Jool system since my crew sets of anytime clayming whole system ... :D

Edited by Tada
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Well, to be Laythe efficient, you got to master orbital and interplanery juggling - set some ships to transfer and as the fly to Jool do some Launches in Kerbin SOI, do some Laythe base management and missions...

I'm learning that now, with my first major assault on the Joolian system. Careful preparation and aggressive aerobraking seems to make the difference between negligible fuel usage, and ALL OF IT!

Mid way through throwing six ships at Laythe at the moment. I have learned that engineer redux on all of them is close to mandatory. I also got an inbound Laythe encounter possibility while adjusting for Jool periapsis and inclination, and didn't dare take it because I have no idea how to handle an aero capture at Laythe without first having captured at Jool. I imagine it would involve going terrifyingly low and getting very hot.

Still haven't managed a full aerocapture at Laythe. I keep decreasing my periapsis with each ship. Last one I tried at 25K and that didn't work. Next one will try at 23.5K. It's an SSTO spaceplane, so if it goes wrong I can light up the jets and be out of there. I'm coming in from just inside the orbit of Vall, after aerocapturing at about 116K at Jool, usually encountering Laythe on the way down from Jool apoapsis.

Sadly, the vehicle I got this most wrong with was my fuelling station, which used 2/3 of its stored fuel correcting the mistake. My plans are going to have to be scaled back until I can ship more fuel out there.

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First planet I 'landed' on back in 0.17. Those were the days! That was when I put all three ships of my expedition in a retrograde Jool orbit, so some extreme aerobraking was involved.

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Laythe is all fun and games, until this happens.

Main reason I'm returning there is because of, well, not quite that. There were some miscalculations with intercept and fuel, and ... well, the lander works, but it won't make orbit and even if it had, the transfer vessel had no fuel and flew off into Jool orbit and beyond.

At least there is air down there, and they had a lander can to live in for the last two years.

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It occurs to me that I started this thread and didn't even post a picture of my un-laggy Laythe station! Well, here it is.

LaytheDepot.png

Not much to look at, but it does the job, and not a bit of lag with that ship docked to it.

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I get almost as much lagg on the surface of Laythe as I do on Kerbin. I get almost none around the Mun however...

I get a small amount around Duna and lots around Eve, but I only get lagg when I'm orbiting these planets below a certain altitude. This is because when you're high enough up it stops modelling the terrain properly and instead just uses a simplified model that needs nowhere near as much juice from the computer to model :P

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Comradegoat: 23.500m is way to go when coming not over 4000m/s... If you´re lucky you can save fuel by inserting to Laythe without Jool aerobraking - then you might need to be ready to do deeper aerobraking, baceuse you´ll be propably coming faster from interplanetary space - but you´ll save A LOT of fuel.

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Comradegoat: 23.500m is way to go when coming not over 4000m/s... If you´re lucky you can save fuel by inserting to Laythe without Jool aerobraking - then you might need to be ready to do deeper aerobraking, baceuse you´ll be propably coming faster from interplanetary space - but you´ll save A LOT of fuel.

Had an Laythe encounter who was over 6000m/s, main issue with it was that mechjeb landing autopilot was unable to find an attitude who put me in orbit, either I would pass or land and I did not want to cut it to close, however I started to brake at once I was out of the atmosphere, a 500 m/s burn put me in orbit and the next aerobrake gave me an low orbit. An Jool aerobrake with laythe encounter whould be more expensive.

Its best to slingshot around Jool so you catch up with laythe but this is not always posible.

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Comradegoat: 23.500m is way to go when coming not over 4000m/s... If you´re lucky you can save fuel by inserting to Laythe without Jool aerobraking - then you might need to be ready to do deeper aerobraking, baceuse you´ll be propably coming faster from interplanetary space - but you´ll save A LOT of fuel.

I just tried 23,000 after dropping in on an orbit round Jool with apoapsis around where Vall is, and it didn't capture me. I'm thinking my Joolian periapsis is still high (116,000 and I burned from Kerbin a bit early, so my Jool encounter speed is slightly higher than a perfect Hohmann).

Got an encounter with the next one on the way up. Going to try 22,000. Wish me luck!

ETA: Hit the atmosphere at about 4,050 m/s. 22,000 left me about 110 m/s short of capture. One vessel left. Will try at 21,500. I don't use Mechjeb, but this is sorely tempting me!

Edited by ComradeGoat
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I did the slingshot around Jool and caught up with Laythe then aerobrake.

Next time with the Big ship I'm going Striaght at Laythe tho. I want to hit the atmosphere at 10km/s Lol

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between 22,000 and 23,500 only 200m can make all the difference :)

Hoy: Your mission setup is almost exactly same as mine :D

Edited by Tada
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between 22,000 and 23,500 only 200m can make all the difference :)

Thanks. This is all extremely useful info! Maybe I'll raise it a little bit. Just on my way into Jool now, doing the "don't warp below 1K" thing. Think I'll put the kettle on...

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Hoy: Your mission setup is almost exactly same as mine :D

If you have a half hour take a look at the Laythe Deep Space Ferry playlist on my channel, that's my real mission :)

I threw together an ssto with enough dv last night to get to Laythe and back delivering 4 RCS powered probes, going to rendezvous with the carrier where I left it at the end of that video and use the two interceptors to deliver 2 satellites each to the other moons. (Each with power, kethane and isa hardware)

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HoY: I´ll take a look :)

Dropping 2 tankers worth of 3600 liquid fuel (1800 each) after I run them dry during ejection burn

264407_4796978490357_750660887_n.jpg

Aerobraking at Jool

21289_4796978570359_1869001731_n.jpg

Mothership itself is 6400 of liquid fuel (+ 4 oscar B in probes) powered by magnificent 9 LV-N engine cluster by Temstar. With light loads it can propably reach even Dres or Eeloo, with heavy loads like SSTOs it is different story (burning 3600 units of liquid fuel just for Jool ejection :D), but definetly Laythe capable.

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