If you need several burns to get to your desired inclination, remember that if you burn "normal" on one node you need to burn "antinormal" on the other to keep going the same direction. If the craft is passing through the ascending node, where the angle is positive, it needs to burn antinormal (South from an equatorial orbit), while if it's passing through the descending node, and the angle is negative, it should burn normal (North from an equatorial orbit). Both show the same difference, but the descending node show the value as a negative number while the ascending node show the value as a positive one. When hovering over the ascending or descending node markers, it will show the difference in degrees. The direction the craft needs to burn depends on which direction the current orbit is off from the target orbital inclination. You will see two green arrows, labeled "ascending node" and "descending node," where the two orbital planes cross. If you want to orbit on the same plane as another object (planet, ship, etc.), set it as your target in the map view. Raise your periapsis by burning prograde at your apoapsis. ![]() Lower your periapsis by burning retrograde at your apoapsis. Raise your apoapsis by burning prograde at your periapsis instead. Lower your apoapsis by burning retrograde (see navball) at your periapsis. In general, burning prograde will make your orbit "larger" and burning retrograde will make it "smaller". A slim design with aerodynamic nose-cones decreases drag and thus increases the maximum speed you can reach without wasting too much thrust on drag. The terminal velocity of your rocket depends on how aerodynamically you build it. Lower velocity wastes delta-V on gravity, higher is wasted on air resistance. You can save fuel by being close to your terminal velocity during ascent.
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