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Found 3 results

  1. I once made an ion craft in a sandbox game and spun it out to Duna but it was able to do it in a single burn. When I watch videos on youtube I often see people doing multiple burns at periapsis to take advantage of the oberth effect, which I get. What I don't know though is how do you calculate what burn you need to do the transfers? Obviously you can't set up a single node ( or maybe you do ) for a single burn and surely after say 5 burns the planet your orbiting will be a day or 6 ahead in it's orbit so how do you know if you're still on target? The only video I've seen that even briefly covered how to do it was one of Matt Lowne's but it was very brief, I didn't quite get it the first time around and now I can't find which video it was. Can someone explain it to me or direct me to a guide on the subject?
  2. I've built a big ship for a manned travel to Mars.It's powered by 3 nuclear engines with Liquid Hydrogen as fuel.The complessive burn time is around 2 hours and the fuel is just enough to the whole trip to Mars and return ( no errors or DeltaV waste possible).So , what's the best way to save as much DeltaV as possible in maneuvers by doing them efficently?Are there any rules that I have to know on how to save fuel? The ship plays a lot on throwing away empty tanks ( life support and fuel), squeezing DeltaV to make the vehicle lighter.Start mass : 600 tons. End mass (from Mars to Earth): 150-200 tons.
  3. I have a couple of questions about the above. When circularising my orbit above Kerbin should I also be checking the inclination and if so what should it be at for the best transfer orbit to Mun? Often when I burn for the Mun I find the encounter is going to kick me up at around a 30-45 degree angle. Going for a capture burn at periapsis then puts me in a heavily inclined orbit around Mun. This is ok for tourists and small satellites when I have plenty of dV to spare but I'd like to do things more precisely. May I have some tips on getting a more equatorial orbit around Mun?