United Launch AlliancePage 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.
Mike Pence will visit Cape Canaveral next month for a big space update Quote 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.
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.
Quote from: Targeteer on 07/02/2018 09:15 pmUnited Launch AlliancePage 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
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.
Boeing suffers a setback with Starliner’s pad abort testhttps://arstechnica.com/science/2018/07/boeing-may-have-suffered-a-setback-with-starliners-pad-abort-test/QuoteThe 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."QuoteBoeing 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. QuoteOne 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.
Quote from: jpo234 on 07/21/2018 07:37 pmSo 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.
Quote from: envy887 on 07/22/2018 03:51 amThe 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
A sources familiar with the incident told Parabolic Arc the problem occurred with a valve on the test rig, not on the motor itself. The problem has been addressed and did not represent a significant setback, the source added.
Boeing suffers a setback with Starliner’s pad abort test
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.
Quote from: edkyle99 on 07/22/2018 04:49 amQuote from: envy887 on 07/22/2018 03:51 amThe 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 KyleEither of which is a HAZMAT spill.
https://twitter.com/BoeingSpace/status/1021761282377113600QuoteAn 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
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.
Quote from: Olaf on 07/24/2018 05:35 pmhttps://twitter.com/BoeingSpace/status/1021761282377113600QuoteAn 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=.90f444a53789What 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:QuoteThe 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?