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For questions discussing trajectories taken by rockets during launch.

2 votes

Powered Explicit Guidance: Should rocket be pitching down at orbital insertion?

This is normal. The algorithm that I wrote for MechJeb in KSP that uses Runge-Kutta and Calculus of Variations for vacuum-optimal-and-precise guidance still shows this behavior. The problem is with h …
lamont's user avatar
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5 votes
Accepted

Are 'classical' gravity turns still used and recognizable as such?

Ares I would have flown very close to an ideal gravity turn in the atmosphere. One paper that covers the simplest guidance of pitching it over on an initial azimuth and then flying it with basically …
lamont's user avatar
  • 993