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Vanamonde

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Posts posted by Vanamonde

  1. Yes, the geography (minmugraphy?) of that moon is fascinating. This lander (figure 1) is parked at 1132 meters. The cliff behind it (figure 2) rises to a peak of 4849m (figure 3, the highest point I\'ve found on Minmus so far, though I think there are a few higher ones). That cliff is 3717m high, not even from sea level, but just from the valley where the lander is parked.

  2. You cannot fly a plane on the mun, there is no atmosphere to generate lift...
    No spaceplane uses lift throughout its flight. That\'s what the 'space' part refers to. :D
    Does anyone have some serious feedback for me at all?
    I wish I did, but yours is already way better than any spaceplane I\'ve yet built. My feedback is, be proud of it.
  3. I\'ve never been clear whether multiple SAS modules actually do anything more than one does by itself, but it is my understanding that they need to work through fins, canards, RCS, and/or gimballed engines to really have much affect. So if you use some of those steering devices, you might not need all the weight of those additional SAS units.

  4. Very good tutorial, Khrissetti.

    To Mun step 5.5: Shut off engines as soon as the conic section display shows you\'re going to get an orbit, so you don\'t overshoot. (Just in case that wasn\'t clear.)

    Landing step 9.5: Last-second vertical RCS puffs (H key) can fine-tune descent speed, meaning the difference between a gentle landing and kablooey. This has saved my landers more than once.

    Landing step 10.5: As soon as you\'re down, turn off SAS and RCS. In their attempts to maintain your attitude, they can bounce and twist you into trouble.

    About return step 3? I\'m still working out the best method. If you aim straight for Kerbin, later path adjustments risk slowing you to the point that Mun grabs you again. Also, going straight down leaves you with more speed to burn off when you get there, and you don\'t want to slam into the atmo or overshoot because you ran out of gas. For those reasons, I aim 45 degrees behind Kerbin, so that Mun is 'throwing me back over its shoulder,' as I think of it. (See attached illustration.) This gets me clear of Mun sooner (as it moves on ahead and is therefore less likely to recapture me), and means Mun\'s gravity is releasing me to fall more than throwing me straight down. How does that sound?

  5. Attached is Newton\'s nifty explanation of how orbit works. A canon is on hill V firing canonballs to the right. Fire the ball slowly and it does move sideways, but gravity also pulls it down and it lands at D. Fire it a little faster and gravity still pulls it down just as hard, but it\'s also moving sideways faster, so the ball goes father before landing at E. Fire the ball somewhat faster, and as the ball travels, the earth curves away underneath it, so the ball goes even farther before hitting the ground at F, and faster/further still at B down there. But at a certain speed, the orbital speed, the earth (or whatever) curves away at the same rate that the canonball falls/flies. The ball really is falling (freefall), but will just keep falling and never hit the earth. Of course, this illustration pretends earth has no atmosphere to slow the ball down, but the idea still works if you just imagine the mountain sticks up out of the atmosphere.

    Newton. Figured this out. In 1687. 270 years before Sputnik actually did it for the first time.

    (So nobody gets into any kind of legal troube, I copied the picture from here.)

  6. Let\'s see the General Lee try this: 34.8km non-fatal rover jump.

    Screenshot #7: Liftoff, with one of my parked landers as a reference point below (just above the navball).

    #9: Cleared lander by 4 vertical kms.

    #12: Neilbles and Dudney reconsider the merits of the endeavor. Geofnard remains sanguine.

    #15: Touchdown, 34.8km from liftoff point on the cliff (minus the trig to correct for the reference point being 4km below the ellipse-section flightpath, whatever that would come to).

    #18: Woops, went over another hill before we could brake to a halt. I guess we\'re not done. I can see my house from here! And Kerbin and Mun! Yes, we flew so far that we watched the planet rise and had to adjust our attitude to correct for the curvature of the moon so we\'d land on our wheels.

    #20: Second touchdown 9.8km from first.

    #21: Lived to tell the tale.

  7. RSC tanks will not remove lateral movement
    A lot of players use it for that: fine-steering on the final descent. That\'s not my method, but it works for other people. However, I think kknight is talking about using RCS to propel his lander-rover? That will work, I think, but you\'ll run out of RCS fuel pretty quickly. A little fuel tank with the 50 unit engine will last a lot longer.
  8. I don\'t go as crazy with it as you do, but it\'s reached the point where I think I need to make some sub-folders and sort my collection so that I can find the one I want when I need it. For categories I\'m thinking: scenery, achievements, comical mishaps, the staggering awesomeness that is my ship designs (that one would have a lot of crossover with comical mishaps), and stuff that illustrates ideas.

  9. i used i,j,k,l and it only seemed to change the rockets motion to about the 45 degree angle
    It looks like much of the mass of your ship is below the RCS thrusters. If the force is off-center, it will push the ship to the side AND cause it to pivot around the center of gravity. Add another set of thrusters lower down, or move the ones you have so that they\'re around the COG.
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