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#360
by
Targeteer
on 02 Jul, 2018 21:15
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United Launch Alliance
Page Liked · 1 hr ·
The Dual Engine Centaur for the first flight of the The Boeing Company CST-100 Starliner is in the final stage of production and checkout and will be shipping to the Cape soon! For Starliner missions, we will fly two RL10A-4-2 engines on the #AtlasV’s Centaur upper stage.
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#361
by
Ronsmytheiii
on 09 Jul, 2018 17:15
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#362
by
yg1968
on 17 Jul, 2018 00:17
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United Launch Alliance
Page Liked · 1 hr ·
The Dual Engine Centaur for the first flight of the The Boeing Company CST-100 Starliner is in the final stage of production and checkout and will be shipping to the Cape soon! For Starliner missions, we will fly two RL10A-4-2 engines on the #AtlasV’s Centaur upper stage.
There is also this image of the dual engine Centaur:
https://twitter.com/torybruno/status/1013861120061239296
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#363
by
yg1968
on 17 Jul, 2018 19:58
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Mike Pence will visit Cape Canaveral next month for a big space update
Pence, who chairs the National Space Council, will confirm a new launch date for the first private crew missions and announce which crew capsules each of the four selected astronauts will ride in to the International Space Station.
We will get an update by VP Pence on commercial crew on August 3rd. See the link above.
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#364
by
deruch
on 19 Jul, 2018 15:03
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United Launch Alliance
Page Liked · 1 hr ·
The Dual Engine Centaur for the first flight of the The Boeing Company CST-100 Starliner is in the final stage of production and checkout and will be shipping to the Cape soon! For Starliner missions, we will fly two RL10A-4-2 engines on the #AtlasV’s Centaur upper stage.
There is also this image of the dual engine Centaur:
https://twitter.com/torybruno/status/1013861120061239296
That picture has both Centaurs for their 2 flight tests (though the RL-10s are only integrated in one of them yet). The OFT's Centaur is on the right and the CFT's is on the left.
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#365
by
cebri
on 21 Jul, 2018 19:10
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Boeing suffers a setback with Starliner’s pad abort test
https://arstechnica.com/science/2018/07/boeing-may-have-suffered-a-setback-with-starliners-pad-abort-test/The engines successfully ignited and ran for the full duration, but during engine shutdown an anomaly occurred that resulted in a propellant leak. "We have been conducting a thorough investigation with assistance from our NASA and industry partners," the statement said. "We are confident we found the cause and are moving forward with corrective action. Flight safety and risk mitigation are why we conduct such rigorous testing, and anomalies are a natural part of any test program."
Boeing officials have apparently told NASA they believe there is an operational fix to the problem rather than a need to significantly rework the Starliner spacecraft itself.
One source indicated that this problem may not affect the uncrewed test flight but that it could delay the crew test.
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#366
by
jpo234
on 21 Jul, 2018 19:37
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Boeing suffers a setback with Starliner’s pad abort test
https://arstechnica.com/science/2018/07/boeing-may-have-suffered-a-setback-with-starliners-pad-abort-test/
The engines successfully ignited and ran for the full duration, but during engine shutdown an anomaly occurred that resulted in a propellant leak. "We have been conducting a thorough investigation with assistance from our NASA and industry partners," the statement said. "We are confident we found the cause and are moving forward with corrective action. Flight safety and risk mitigation are why we conduct such rigorous testing, and anomalies are a natural part of any test program."
Boeing officials have apparently told NASA they believe there is an operational fix to the problem rather than a need to significantly rework the Starliner spacecraft itself.
One source indicated that this problem may not affect the uncrewed test flight but that it could delay the crew test.
So the rumors were true after all.
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#367
by
edkyle99
on 22 Jul, 2018 02:46
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So the rumors were true after all.
They were right that an issue had occurred, but wrong about the details.
- Ed Kyle
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#368
by
envy887
on 22 Jul, 2018 03:51
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So the rumors were true after all.
They were right that an issue had occurred, but wrong about the details.
- Ed Kyle
The rumor I heard was "hydrazine leak", which sounds pretty much like what Boeing is saying.
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#369
by
edkyle99
on 22 Jul, 2018 04:49
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The rumor I heard was "hydrazine leak", which sounds pretty much like what Boeing is saying.
The rumor was wrong about the time sequence of the event. As for "hydrazine", that may be true but so far Boeing has confirmed "propellant" leak, which could be MMH or N2O4.
- Ed Kyle
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#370
by
TomH
on 22 Jul, 2018 05:26
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#371
by
docmordrid
on 22 Jul, 2018 18:13
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The rumor I heard was "hydrazine leak", which sounds pretty much like what Boeing is saying.
The rumor was wrong about the time sequence of the event. As for "hydrazine", that may be true but so far Boeing has confirmed "propellant" leak, which could be MMH or N2O4.
- Ed Kyle
Either of which is a HAZMAT spill.
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#372
by
Yeknom-Ecaps
on 23 Jul, 2018 03:16
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Does anyone know the actual date of the test failure "in June"?
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#373
by
su27k
on 23 Jul, 2018 04:14
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#374
by
erioladastra
on 23 Jul, 2018 17:16
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Boeing suffers a setback with Starliner’s pad abort test
Correction - it was an engine test (launch abort and other engines). It was not the Pad Abort Test. That is a very different test where the full abort and landing sequence will be tested.
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#375
by
Olaf
on 24 Jul, 2018 17:35
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#376
by
rayleighscatter
on 24 Jul, 2018 21:38
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The rumor I heard was "hydrazine leak", which sounds pretty much like what Boeing is saying.
The rumor was wrong about the time sequence of the event. As for "hydrazine", that may be true but so far Boeing has confirmed "propellant" leak, which could be MMH or N2O4.
- Ed Kyle
Either of which is a HAZMAT spill.
Depends on the quantity.
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#377
by
su27k
on 25 Jul, 2018 14:38
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https://twitter.com/BoeingSpace/status/1021761282377113600
An exciting day for the entire #Starliner and @BoeingSpace team! Let's get ready to fly! Learn more about #Boeing test pilot @Astro_Ferg via @washingtonpost and @wapodavenport.
https://www.washingtonpost.com/news/business/wp/2018/07/24/feature/nasa-trained-boeing-employed-chris-ferguson-hopes-to-make-history-as-a-company-astronaut/?utm_term=.90f444a53789
What happens if NASA uses CFT to do crew rotation? Does Ferguson get kicked off the mission, or does he get to stay on ISS for 6 months?
Also I'm confused about this part:
The shuttle had wings, like a plane. His new spacecraft was a thimble-shaped capsule, far more difficult to control. In this particular test, he’d be facing a worst-case scenario: Every computer of the autonomous spacecraft would be out, meaning he’d have to fly it manually, hitting the atmosphere at Mach 25, or 25 times the speed of sound, then, somehow, bring it down for a soft landing. Two of the four NASA astronauts who had attempted it had failed, losing control of the spacecraft so that it tumbled, and Ferguson was eager to get in some extra practice.
I thought the capsule should be passively stable? Or is that just Soyuz?
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#378
by
envy887
on 25 Jul, 2018 16:35
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https://twitter.com/BoeingSpace/status/1021761282377113600
An exciting day for the entire #Starliner and @BoeingSpace team! Let's get ready to fly! Learn more about #Boeing test pilot @Astro_Ferg via @washingtonpost and @wapodavenport.
https://www.washingtonpost.com/news/business/wp/2018/07/24/feature/nasa-trained-boeing-employed-chris-ferguson-hopes-to-make-history-as-a-company-astronaut/?utm_term=.90f444a53789
What happens if NASA uses CFT to do crew rotation? Does Ferguson get kicked off the mission, or does he get to stay on ISS for 6 months?
Also I'm confused about this part:
The shuttle had wings, like a plane. His new spacecraft was a thimble-shaped capsule, far more difficult to control. In this particular test, he’d be facing a worst-case scenario: Every computer of the autonomous spacecraft would be out, meaning he’d have to fly it manually, hitting the atmosphere at Mach 25, or 25 times the speed of sound, then, somehow, bring it down for a soft landing. Two of the four NASA astronauts who had attempted it had failed, losing control of the spacecraft so that it tumbled, and Ferguson was eager to get in some extra practice.
I thought the capsule should be passively stable? Or is that just Soyuz?
Also, isn't Starliner (like Shuttle) completely fly-by-wire? It would be impossible to control at all without the flight computer working.
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#379
by
TripleSeven
on 25 Jul, 2018 16:47
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https://twitter.com/BoeingSpace/status/1021761282377113600
An exciting day for the entire #Starliner and @BoeingSpace team! Let's get ready to fly! Learn more about #Boeing test pilot @Astro_Ferg via @washingtonpost and @wapodavenport.
https://www.washingtonpost.com/news/business/wp/2018/07/24/feature/nasa-trained-boeing-employed-chris-ferguson-hopes-to-make-history-as-a-company-astronaut/?utm_term=.90f444a53789
What happens if NASA uses CFT to do crew rotation? Does Ferguson get kicked off the mission, or does he get to stay on ISS for 6 months?
Also I'm confused about this part:
The shuttle had wings, like a plane. His new spacecraft was a thimble-shaped capsule, far more difficult to control. In this particular test, he’d be facing a worst-case scenario: Every computer of the autonomous spacecraft would be out, meaning he’d have to fly it manually, hitting the atmosphere at Mach 25, or 25 times the speed of sound, then, somehow, bring it down for a soft landing. Two of the four NASA astronauts who had attempted it had failed, losing control of the spacecraft so that it tumbled, and Ferguson was eager to get in some extra practice.
I thought the capsule should be passively stable? Or is that just Soyuz?
trying to fly the thing with the computers "out" is a waste of time...
there is no realistic possibility of this occurring