Given that you can radio-transfer the data directly to Kerbin, you'd probably assume you can radio it to your capsule too, but you can't. This mod fixes that issue, it will even allow you to download data from external devices like thermometers directly into your lander craft or main ship, without having to EVA and read the display yourself. While Kerbals can crawl through docking ports, and even transfer resources, they haven't figured out how to pass a notepad through there, or a bag of rocks for that matter, and insist on doing that by EVA instead. Ship Manifest is another mod you'll love with missions that involve docking a lander to your ship. If you don't already have another mod that does the same thing, then get this one right away. This is not just useful for building landers, but for building rockets too, and even planes. Kerbel Engineer Redux will allow you to see vital stats of your craft such as exact weight and TWR per stage while you are building it. However, there is one mod that you likely will want to install anyway: No, you will not need mods, everything in here works with just stock content. In case you are wondering, the lander can in this picture is from the mod ASET ALCOR, a very good 3-man lander can that has a great RasterPropMonitor IVA you can use to do the whole landing from inside the craft. This also means we can possibly save on fuel, since a little slope will not mean we have to maneuver to try and get over a better landing site. This is a lawn chair lander on Minmus, the slope here is more than 30°, but as you can see, with landing legs setup like this, we can still land there. With a lander that is built like a bar stool, we have very little margin of error, and on steeper slopes we cannot land at all, with a lander that is built like a lawn chair we do not have this problem. When we attempt a landing on a planet or moon, our craft might not be perfectly upright when we touch down, the terrain might have a slope angle, or both. The angle in the lawn chair example is less than 45°, meaning we would actually have to lift this thing up on one side quite a bit until we have an angle where gravity can make the thing fall over instead of pulling it back to its original position. The angle in the bar stool example is almost 90°, meaning if we tip this thing to the side only a little, gravity will pull the center of mass down. Look at the red line going from the ground where the legs touch to the center of mass (the person sitting on the stool or chair), and the angle we have. Have you ever wondered why so many people keep falling over when sitting on a bar stool? There are probably other factors involved, but one reason is how the legs of the bar stool are close together, and the thing itself is tall. Your mission will be similar to the Apollo landings, and thus at least two times more awesome. If it is built bottom-heavy and wide instead of tall, it will be very stable in landing. The reason being, if your lander is top-heavy and long, as it will be when landing the whole rocket, it will tend to topple over easily. While with rockets, it is generally beneficial to have the center of mass somewhere in the middle or even towards the upper third, you will want your lander to be as bottom-heavy as it can. Your lander will require more fuel to take off, and especially for interplanetary missions you will need extra fuel in your lower stages to bring the extra fuel in the lander with you in the first place.Īnd then, landers follow a different rule of stability. If you bring the return stage down with you, you will have a lot of extra weight. There are two simple reasons why you'll want to build a lander.įor one, everything that you bring down to a planet or moon you will need to bring up again.
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