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SpaceX completes crucial tests of its Crew Dragon parachutes

It showed they could land a Crew Dragon capsule with only three of four chutes deployed.
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SpaceX has demonstrated that its latest Mark 3 Crew Dragon parachutes will work even if things don't go quite to plan. On Twitter, the company showed off a short video clip of a payload landing with only three of four parachutes deployed, and said it has successfully tested the system 13 times in a row.

That's a pretty big milestone, as it beats a goal that CEO Elon Musk had set last month. "We certainly want to get ... at least on the order of 10 successful tests in a row before, before launching astronauts," he said. "So that seems like where the behavior of the parachutes is consistent, is across 10 successful tests."

The parachutes now look substantially different from the ones SpaceX first tested. Instead of nylon on the straps, they now use "Zylon" a stronger polymer material developed by Stanford University. The chutes also have a new stitching pattern to more evenly distribute the loads.

In a meeting with NASA administrator Jim Bridenstine, Musk said that Crew Dragon could be ready for its first crewed "Demo-2" test flight in Q1 of 2020. Before that happens, however, SpaceX still has to perform static fire tests of the Crew Dragon abort engine. During the last such test in April, an anomaly caused an uncrewed capsule to explode.

If that goes to plan, SpaceX would then perform an in-flight abort test demonstrating that astronauts would be able to escape alive in the event of an explosion or other launch problem. During that test, an uncrewed Crew Dragon capsule will launch atop a Falcon 9 rocket at Kennedy Space center. Shortly after liftoff, the capsule's SuperDraco thrusters are supposed to blast it a safe distance from the rocket.

If all that works (and that's a big "if"), NASA and SpaceX could start running the crucial Demo-2 tests to the international space station with test-flight crew aboard. Those could take place as early as next year, Musk said in October.

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