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About IncongruousGoat

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    Mega-mission architect

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  • Location Upstate
  • Interests KSP (obviously), programming, and fine literature.

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  1. Aerobraking?

    Chutes can also be set to Deploy When Safe, which allows you to stage them whenever. The game then waits until it's safe to deploy the chutes. This is what I usually do-the cases when it doesn't work due to odd re-entry dynamics are few and far between.
  2. Weather Chat Megathread

    Tell me about it (upstate NY has gotten a similar treatment). It just gets better, too: Next Thursday: Forecast to be 25 F, following a freeze on Wednesday which itself is following rain on Tuesday. We all know what that means...
  3. SpaceX Discussion Thread

    Well, if we're being pedantic we have to consider the 80 cold-gas thrusters FH mounts. We're talking 109 engines, which I think beats the standing record as held by Saturn V/Apollo. But that's if we're being pedantic.
  4. Goat

    Meh. I prefer to stay independent of the goat empire. Its goat policies really get my goat, so to speak.
  5. SpaceX Discussion Thread

    Wait, seriously? Can you provide a source and more details for this?
  6. SpaceX Discussion Thread

    The amount of water necessary aside (I haven't run the numbers), what are you going to do with the CO2 breathed out by the crew? You could try scrubbers, but that might get difficult for a 6-month flight to Mars. You could separate it out from the air by fractional distillation and then throw it overboard, but that is A: energy-intensive, B: wasteful, and C: would produce a lot of waste heat you now have to deal with when you liquefy the air at the start of the process. Once you're on Mars you can use the planet as a freezer, but in space shunting the kind of heat around you'd need to liquefy a lot of air is not going to be easy.
  7. SpaceX Discussion Thread

    It's not easy. The most direct method is the Bosch process, which works by the following reaction: CO2 + 2H2 → C(s)+2H2O. The water can then be electrolyzed in order to get the oxygen and retrieve the hydrogen used. The problem with this is that A: it runs really, really hot (400-650 C), which is not good when you're in space, B: the carbon byproduct is solid graphite, which one has to periodically clean out of the reactor... somehow, and C: electrolyzing water is really energy-intensive. Worse still, if one is using a catalyst to speed up the reaction, the graphite byproduct tends to build up on the catalyst bed and render it useless until painstakingly cleaned. There's also the much-vaunted Sabatier reaction, which works by the following reaction: CO2 + 4H2 → CH4 + 2H2O. The waste methane can then be decomposed to carbon and hydrogen by pyrolysis in order to close the loop. This, however, has similar problems to the Bosch reaction: it runs hot, and produces solid carbon as a by-product, which needs to be periodically chiseled out of the reaction chamber. In brief, it's possible but not as simple as one might think, and still requires a lot of R&D before it's ready to fly.
  8. Why specify the impulse?

    We use specific impulse as a measurement because seconds are the only unit of measurement that's common to both Imperial and Metric. It's a workaround that was designed to allow U.S. rocket scientists to more easily communicate with German rocket scientists back in the late 40's and early 50's. g is only used as a coefficient because it's a constant with a known value in both systems. There's no strict physics or engineering reason to measure engine efficiency in seconds, or to use g specifically in the calculations, and at this point it's done for reasons of convention more than anything else. Interestingly, for a while a similar convention was used in Germany where engine efficiency was expressed using specific propellant consumption, in units of s-1.
  9. The Saga of Emiko Station - Chapter 91 - Kokomo

    Considering the things that have happened so far in this story, I shudder to think what could possibly be regarded as "odd" at this point.
  10. The user below me...

    Yes I do. TUBM knows how to ski.
  11. So... KSP dead?

    A game's not dead while its name is still spoken. KSP will die only when we allow it to do so, and as far as I'm concerned the time for that has not yet come.
  12. Screaming through the Cosmos - Our very own Spacebat

    And so another vehicle succumbs to the vagaries of Test Flight. If it makes you feel any better you're about on par for the success rate of the Vanguard booster.
  13. The file you should be looking for is ResourcesGeneric.cfg, which can be found at (path to KSP)/GameData/Squad/Resources/ResourcesGeneric.cfg. Within that file, you can edit the density numbers to make LiquidFuel and Oxidizer lighter.
  14. What do you guys drink while playing or do you drink at all? 

    I pretty much exclusively drink lemon iced tea, although that's not unique to KSP. And, much like @adsii1970, I even drink it when it's below freezing (which it has been for something like a month now here). Not like I can just stop imbibing my favored beverage for a few months while I wait for the weather to warm up.
  15. SpaceX Discussion Thread

    In other news, the total flight time for Dragon has now reached a whopping 367 days, 23 hours with the return of CRS-13 - which means Dragon now has more than a year of total flight time. Not bad at all for a spacecraft that started flying only 7 years ago.