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Feb 20, 2017, 01:08 AM
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SpaceX videos

Spacex crs10 landing (6 min 12 sec)

The complete landing.

Spacex crs10 vs iridium1 landing (6 min 3 sec)

Comparison of a return to launch & ocean landing. The return to launch takes longer because the rocket has to reverse its horizontal motion. What's more surprising is how the booster flips over as fast as possible when returning to the launchpad but takes its time when landing in the ocean. Every nanosecond it takes to perform the boostback burn, it travels miles farther downrange & has to burn tons more fuel to return. They probably wish there was a way to slow it down faster. It's not obvious when the rocket's horizontal motion reverses. The boostback burn may arrest all of its horizontal motion, but it takes its time flipping back towards the launchpad. It could use the grid fins to finish the turn, like a glider pilot.
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