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by firebaze
822 days ago
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They do this while performing the burn of the (in this case) 2nd stage. "No, that's inefficient" is misleading, IMHO. They also waste some delta-V by starting the circularization burn a little bit early. You surely know that, but mathematically it is unavoidable to have a 2nd burn at the apoapsis to have an orbit (with a periapsis > the initial launch altitude, minus gravity and atmospheric losses), albeit it may start earlier (while wasting a slight amount of delta-v). |
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