![]() ![]() Your periapsis before deorbiting should be as low as possible. (The most efficient is to time your burn so that you can burn retrograde at full thrust until your speed is zero exactly on the surface, SpaceX style, but that's not something to attempt manually, especially on a first attempt) There are tools that can help you get the most efficient trajectory, but extreme efficiency is very risky to do manual. When you're comfortable with this, you can reduce margins everywhere, and get even more efficient. So if you're at 1km high, you can go 100 m/s, at 200m you can go 20m/s. Don't burn till you stop, when you get closer to the surface, try to keep your speed at roughly 1/10 of your height. ![]() This should leave you with plenty of margin, as your time till impact is calculated on your full speed, but slowing down will increase the amount of time till impact. Note the time till the manoeuvre node, then move it forward by exactly the expected burn time. Note how long you need to burn to reach this speed of zero. Drag the retrograde marker until your target speed in zero. Place a manoeuvre node on the point where you intersect the surface. Take some margin at first, say negative 100km on Mün, when you're more comfortable, you can get this closer to the surface. But how is this proper, better way that doesn't spend a shitton of fuel?Ī rule of thumb you could use to find the sweet spot for as follows:īurn retrograde until until your orbit has a negative periapsis. So I'm thinking here, this CAN'T be the proper way to land on Mun and other stuff. This DOES work to get me to touch down safely, however I'm having issues with having to pack a lot of fuel on my landers making them big and heavy (together with all the science equipment, this piles up all the way down to the launcher rocket), and on my last mission I even let my kerbals stranded because they didn't have enoungh fuel to go back ot the return ship! =\ controlling velocity with tiny throttle bursts, not letting it go over 10m/s.upon reaching ~5k altitude from ground level, burning retrograde again until velocity is around 10-20 m/s.burning retrograde until my horizontal velocity is 0 and my velocity vector is vertical.Undocking from the main ship at a ~20k altitude orbit.Why? cuz I'm spending around 1k delta-V on the final descent alone =\ Here's what I'm doing I'm finding myself having to pack a TON of delta-V on my landers, even it being just meant to go down from orbit, lift off to rendevouz with the return ship and be discarded.
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