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Default SpaceX Dragon Test 18/1/2020
by Notebook 01-18-2020, 09:10 AM

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SpaceX is targeting Saturday, January 18 for an in-flight test of Crew Dragon’s launch escape capabilities from Launch Complex 39A (LC-39A) at NASA’s Kennedy Space Center in Florida. This test, which does not have NASA astronauts onboard the spacecraft, is intended to demonstrate Crew Dragon’s ability to reliably carry crew to safety in the unlikely event of an emergency on ascent.
https://www.spacex.com/webcast
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Old 01-19-2020, 03:36 PM   #3
Urwumpe
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And a new T0 has been issued, because of the winds in the recovery zone:



It sounds like they plan to launch today, just trying to make the best out of the current weather trends.

---------- Post added at 16:36 ---------- Previous post was at 13:02 ----------

What a fireworks - they destroyed the Falcon 9 booster by range safety during the test, after engine shutdown and Dragon separation.
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Old 01-19-2020, 03:40 PM   #4
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Welp, SpaceX still knows how to blow up.

Nice show today. Congrats, SpaceX!
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Old 01-19-2020, 03:47 PM   #5
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SpaceX is always good for a BOOM!
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Old 01-19-2020, 04:08 PM   #6
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Old 01-19-2020, 04:13 PM   #7
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Quote:
Originally Posted by Urwumpe View Post
 What a fireworks - they destroyed the Falcon 9 booster by range safety during the test, after engine shutdown and Dragon separation.
It also didn't look like a breakup due to dynamic forces to me..., but can you give the source of that information? Thanks.
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Old 01-19-2020, 04:29 PM   #8
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Quote:
Originally Posted by kuddel View Post
 It also didn't look like a breakup due to dynamic forces to me..., but can you give the source of that information? Thanks.

No confirmation yet, but the a number of factors suggest it. The press kit predicted a possible breakup either directly after separation or during reentry.



Quote:
Following Crew Dragon’s separation, Falcon 9 is expected to aerodynamically break up offshore over the Atlantic Ocean. Expected breakup time will vary due toa number of factors, including winds and expected minor variations in vehicle attitudes and positions, but could occur shortly after separation or upon reentry from Earth’supper atmosphere. In either scenario, a dedicated team of SpaceX Falcon 9 recovery personnel will be staged and ready to begin recovering debris immediately after breakup.

The stage was flying stable after separation and showed no signs of tumbling or other instability. Even venting after engine shutdown appeared normal.



Also, destroying the stage controlled is a much better choice than letting it happen close to the capsule recovery site - but SpaceX has no control over the range safety devices anyway, the US Air Force has command there.



And finally the explosion cloud appeared too well mixed for a uncontrolled destruction. That is the weakest argument there, sure, but it is quite a gamble to get such a precise nice single explosion just by chance.



Its possible (in a conspiracy theory way) that SpaceX wanted to take some bit of gambling there to extract more engineering data for future landing technologies, while the Airforce was staunchly conservative and called for stage destruction as soon as it veered of the scheduled trajectory.





You'll get my excuse for the misinformation or the confirmation for the controlled destruction as soon as I have it.
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Old 01-19-2020, 04:33 PM   #9
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It all looked like a range safety operation: engine shutdown and capsule sep, wait, boom.
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Old 01-19-2020, 04:59 PM   #10
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Also, one big fragment that was photographed from the ground looks a lot like the second stage - which makes aerodynamic destruction again less likely.


Last edited by Urwumpe; 01-19-2020 at 05:14 PM.
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Old 01-19-2020, 05:48 PM   #11
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Wouldn't range-save detonations also blast the second stage?
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Old 01-19-2020, 06:01 PM   #12
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Quote:
Originally Posted by kuddel View Post
 Wouldn't range-save detonations also blast the second stage?

Not sure - at least the first stage should have it, according to older articles even autonomous systems there.
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Old 01-19-2020, 10:32 PM   #13
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A fitting end to a great core. Salutes to B1046
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