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hyperbolicj

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Everything posted by hyperbolicj

  1. This seems to be a problem of design and there are a few things that could cause a problem of this kind. A: Is the vehicle properly aligned. If the center of mass is not evenly distributed there will be at least one tire with additional pressure on it wanting it to swerve to a particular direction. B: Are the wheels properly aligned. If the wheels are tilted, this is called camber and toe, then the performance will change. If you don't know what you're doing, usually for the worse. C: Are there any components that are being dragged. This additional contact point on the ground could cause the vehicle to want to tilt, pivot, or rotate depending on its' position relative to the wheels. D: Is there any part clipping that is causing the wheels or parts the wheels attach to, to become unstable E: Is the wheel base that has drive, symmetric. For instance if your vehicle is front wheeled drive and you accidentally also left the back left wheel motor enabled the vehicle will gain speed on its' left side faster thus wanting it to turn to the right. The powered wheels on the right side will resist this and might in particularly bad designed to have the vehicle rock back and forth till it flips. F: Going of the same line; Is the steering enabled properly and symmetrically. Generally when steering is enabled on all 4 wheels even when correctly can still cause issues in rocking the vehicle. G: Is the weight of the vehicle appropriate for the wheels being used. Having too much weight on a suspension of a wheel will break it, but not having enough will cause the vehicle to roll easier. Also this one hopefully never needs to apply to you but is good to keep in mind nonetheless. Keep your center of mass low. If you imagine the line from your center of mass to the contact point the wheel makes with the ground the more vertical that axis is, the easier the rover will be to topple. When you place the vehicle on an incline such that that axis is vertical or more relative to the force of gravity, Then you are beyond the point of return and the vehicle will tip unless you have sufficient torque to keep it upright.
  2. It's similar effect to when you get into an orbit. The camera flips to the front of the vehicle for a moment.
  3. Well if the orbit is in fact in the muns' Sphere of Influence. Then remember that the orbit has to be stable for 10 seconds before the contract is finished. So the real objective is to send the satellite in such that you have the most possible time before the muns' SOI shifts the orbit due to an encounter. Since the orbit is closer to kerbin your satellite will be traveling faster. Therefore the one thing we want to avoid is coming up from behind on the mun. So the ideal case scenario is to send the probe just ahead of the muns' SOI. That gives you the most time to send the rocket into the appropriate orbit before it comes in contact with muns SOI by catching up to it from behind.
  4. Well that could be it. But think about it. If you draw an imaginary line from the center of mass to the contact point of the wheel. That's the axis that the vehicle has to rotate on to tip right. If like me you have a 4 wheeled symmetrical design then it would tip in the four cardinal directions on the average of two of those axis. The more vertical those are the easier it should be to tip them. Thus The wider more spread out and low to the ground design would prevent tipping of the vehicle. As to why it lurches I think it's because the acceleration that the wheels give is a particular amount and unless I'm missing something I don't think I can throttle them. So unlike in a car where you gently up the velocity you can't seem to do the same in KSP.
  5. So here's my rover just after docking to a fuel tank component And here it is after lowering the landing legs And I think I just solved the problem with not moving. It seems that the break indicator at the top center turns off when I dock despite not turning the break off. So I just have to toggle on and off. Still have a problem with the vehicle lurching forward. I suppose that's because of the high center of mass and low horizontal spread of the vehicle.
  6. So I'm designing and testing a modular base and why testing if the pieces can connect properly on kerbin I had a problem. The rover I'm using to ferry components around needs to raise itself via landing legs dock and the lower itself and move it around. And it can do that. But occasionally I encounter a problem where after docking with the component and lowering my legs, taking the breaks off. I simply can not move. Wheel motor is on, electricity is topped off, breaks are off, and landing legs up, but the vehicle simply won't move. This is despite the fact that all the component pieces are mere 2-4t in weight. If it does somehow snap out of it the rover lurches forward dramatically. Does anyone know the cause of this?
  7. Well I've sent a total of 5 vessels into space now but I periodically have a reoccurring problem. That is: When I use radial decouplers to detach my booster rockets from my main stage they tend to rotate once detached. If they do so fast enough my rockets main stage then blows up and the whole mission goes up in flames. I postulate that this is due to the radial decoupler not being inline with the center of mass of the booster rocket giving it a slight angular momentum. But I'm only human and setting my rockets as close to their COM with the radial decouplers I still occasionally have this issue. The question posed is this: Is the position of the radial decoupler the cause of the problem? If so is there a way to balance it out with a second radial decoupler, or is there a more elegant solution? If there isn't how can I attach a rocket with multiple radial decouplers, because when I tried only one would be attached at launch.
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