davidpsummers
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Everything posted by davidpsummers
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Efficiency of ISRU has dropped?
davidpsummers replied to davidpsummers's topic in KSP1 Gameplay Questions and Tutorials
Well, I can confirm that the problem was heat. Radiators seemed to solve the problem. It was working OK before, so I think it was a change in going from 1.0.4 to 1.0.5? As to using orbital scans, how much does it very in a region? I've landed maybe 1/2 dozen times in my current favorite spot and always gotten .003 to .005 ore/sec. I might be willing to spend some time with the M-4435 Narrow Band Scanner, but I would rather just drop my a refueler a number of weeks early than have to rove around and look for a psot. -
Efficiency of ISRU has dropped?
davidpsummers replied to davidpsummers's topic in KSP1 Gameplay Questions and Tutorials
Not sure what you mean about prospecting. I did the orbital survey and when I land in a region of high concentration, I get an ore concentration that is acceptable. This is likely my real problem, since I'm not getting the fuel I should from the ore available. It doesn't shut down. I did put in a picture on my original post. -
Efficiency of ISRU has dropped?
davidpsummers replied to davidpsummers's topic in KSP1 Gameplay Questions and Tutorials
I have 8 drills running. But overheating may be my problem. -
Efficiency of ISRU has dropped?
davidpsummers replied to davidpsummers's topic in KSP1 Gameplay Questions and Tutorials
Well, I tried baby sitting it (I did do a time warp) and I still only made 459 units of Lf over 13 hrs. As to you other questions, I don't have an engineer, but I still should get the fuel for the ore I'm taking in. (As I have before.) The core temp is 740 which is over 500K, but that has never been problem in the past. -
I get my fuel from Minmus using a large ISRU lander. (photo below). I seems to take a lot longer than it did on some previous missions. In my latest fuel mission, I have 8 drills taking up 0.00525 units of ore/second. But after 30 days, I only get 1103 units of liquid fuel. (Using Lf only on the ISRU converter.) By my math, this is 1/5 of what I should have gotten?
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I'm pretty sure I staged the engines. I didn't use any gravity hacks. I didn't use any fairings. Here is a picture of the craft.... Oh, an interesting thing. I ejected the stuff I was bringing up to orbit and then tried to land the craft. Though it was moving independently up in orbit, the game still applied heating to it when I reentered the atmosphere.
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I've been having an occasional problem with my space planes. I get to orbit, but I can't quicksave or get back to the space center because I'm "moving over the surface". Kerbal Engineer actually has me listed as "landed". At the moment the only solution seems to be to go all the way back to launch and start over (hoping it doesn't recur.) Any help?
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Where do you change this? I was turning down the music one day and I opened up the setting you can get to from the Space Center from the menu that come up when you have esc. Something changed in the display (not sure what, but I think the icons on the top changed size?) Though I didn't see any setting that sounded like they would do that.
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Not seeing new parts in 1.0.5
davidpsummers replied to davidpsummers's topic in KSP1 Gameplay Questions and Tutorials
What I need is Kerbal Alarm Clock and Kerbal Engineer. I can live without the others but I NEED those! -
Question about the Oberth effect
davidpsummers replied to Tatonf's topic in KSP1 Gameplay Questions and Tutorials
[quote name='LN400']Just one thing. The speed you read in-game would be relative to the body you're orbiting. It's incorrect to compare 2 speeds that are relative to 2 different bodies and conclude your speed orbiting the sun is about 5 times greater than your orbital speed around Kerbin. Orbiting Kerbin, your speed around the sun is much greater than 2300 m/s. Orbiting the sun, your speed relative to Kerbin is nowhere near 9300 m/s if you're somewhere near Kerbin.[/QUOTE] This is the thing I don't understand about the Oberth effect. It is simply that work (what you get out of a burn) depends on force (how big your rocket is) and the distance apply the force over (which is related to speed and burn time). All reference frames should be equal and two reference frames should give you the same answer. But a reference frame at rest with respect to Kerbin will give you a different optimal position than a reference frame at rest with respect to Kerbol. -
Not seeing new parts in 1.0.5
davidpsummers replied to davidpsummers's topic in KSP1 Gameplay Questions and Tutorials
Well, I guess its 1.0.4 for a bit. -
I just switched over to 1.0.5. Dragged my 1.0.4 stuff (GameData folder, settings.cfg, and Folders under Saves) over to the new installation. But I'm not seeing any of the new parts that are suppose to exist? It says 1.0.5 when I launch, and EVA kerbals do have track balls now. But no new parts. Any help?
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Efficient landing procedure?
davidpsummers replied to qoonpooka's topic in KSP1 Gameplay Questions and Tutorials
I'm not convinced that the Oberth effect will be a major effect here. For any low orbit, the difference in orbital speed won't be that high. A suicide burn has the most efficient Oberth effect for vertical velocity. Yes, if you angle down, you can combine killing orbital velocity and speed from falling in one burn, but that is part of the difference of going down the hypotenuse of the triangle rathter than the legs. (I find the increased accuracy in landing worth the cost). -
Efficient landing procedure?
davidpsummers replied to qoonpooka's topic in KSP1 Gameplay Questions and Tutorials
I've been tracking the dV needed to land on Minmus. (Its where I get my fuel.) If find I pretty much need 320-340 m/s (or 80% above ideal.) The best I've ever done was 288 m/s. (From a 10-20 km orbit) One poster said he gets by with 20% above ideal. I'm both impressed and little skeptical. I do a "no quite" suicide burn where I kill orbital velocity, drop down, and begin burning at about 1.5-2x the suicide burn alt. that Kerban Engineer gives. (Or 20-30 seconds before "impact".) After that I might drop again, but I pretty much do it as normal (keep a descent velocity that gets smaller as I near the surface). - - - Updated - - - "I'm not usually one to gainsay Slashy, but twice as much dv as the map says seems like a lot. OTOH, if you use the 'burn retrograde until stopped and then fall down 20 km to the surface' method then I suppose you could spend twice as much as listed." I do this, but mostly because I find it the only way to hit a landing spots with any precision. -
The crafts orientation to the sun shouldn't change as it goes around Kerbin. It will change as the craft (and the planet) go around the sun. So i you want to keep reorienting you would need to do it a few times a year. Things that are orientate north/south with respect to the sun (and, as turns out, Kerbin :-) will stay orientate north/south. So (as per the illustration by "A_name", above) if you panel points north or south, and it is one of the ones that will rotate about its axis, it will always be in a good position. Panels in other directions will sometimes be behind the ship or pointing their axis directly at the sun. Which is why you often have four radially, so that at least two are always good.
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Educational.