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Thread: SpaceX

  1. #4111
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    SN-09

    Propellant loading & venting

  2. #4112
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    Tri-vent

    Static fire!!

  3. #4113
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    Looked good!

    If the flight readiness review is good SN-09 should fly tomorrow or Friday.

    https://twitter.com/NASASpaceflight/...23312728956928

  4. #4114
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    Quote Originally Posted by docmordrid View Post
    Looked good!

    If the flight readiness review is good SN-09 should fly tomorrow or Friday.

    https://twitter.com/NASASpaceflight/...23312728956928
    Do you think that SpaceX will announce a countdown as they did for SN8?

  5. #4115
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    For the flight? Yes.

    Trying for another static fire o_O

    https://twitter.com/elonmusk/status/1349432529657294848

  6. #4116
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    Quote Originally Posted by docmordrid View Post
    For the flight? Yes.

    Trying for another static fire o_O

    https://twitter.com/elonmusk/status/1349432529657294848
    Well best to get it right.

  7. #4117
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    Tri vent

    Siren!

  8. #4118
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    Quote Originally Posted by docmordrid View Post
    For the flight? Yes.

    Trying for another static fire o_O

    https://twitter.com/elonmusk/status/1349432529657294848
    And static fire number 3 is done.

  9. #4119
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    Last edited by docmordrid; 2021-Jan-13 at 08:52 PM.

  10. #4120
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    NSF reports it shook a hotel room at South Padre Island (6 miles)

  11. #4121
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    And it looks like they are going for one more time?!!!

  12. #4122
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    And yes three static fire tests in one day

  13. #4123
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    These static fire tests are short. I'm well aware that these are not full duration burns. Yet it is amazing how fast these rockets reach apparently stable thrust so they can finish the test.

    Three static fire tests in one day, well well. Looks like they're having fun with their Raptors.
    With sufficient thrust, water towers fly just fine.

  14. #4124
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    They have faith in their creations, plus they needed to shake down GSE changes before flight (He pressurization of the headers, ground upgrades, etc.)

  15. #4125
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    Looked TOO short to me. Shorter than previous static fires, except the previous S/N nine one.
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  16. #4126
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    Everyday Astronaut @Erdayastronaut
    Jan 13, 2021
    Awesome milestone! Back to back to back static fires!!!! We’ve never seen that before. Very impressive. And they still haven’t detanked.... think they’ll go for four?! 🤯
    |
    Elon Musk ✓ @elonmusk
    All three static fires completed & no RUDs!
    ||
    Detanking & inspections now. Good progress towards our “Hop in & go to Mars!” goal.

    https://twitter.com/elonmusk/status/1349478110027280386

  17. #4127
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    Ok, Tim, but WHY do you need to do three static fires in one day? Or four? Maybe the first three didn't go exactly as desired?
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

  18. #4128
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    Quote Originally Posted by Trebuchet View Post
    Ok, Tim, but WHY do you need to do three static fires in one day? Or four? Maybe the first three didn't go exactly as desired?
    Testing engine restart?
    At night the stars put on a show for free (Carole King)

    All moderation in purple - The rules

  19. #4129
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    Quote Originally Posted by Trebuchet View Post
    Ok, Tim, but WHY do you need to do three static fires in one day? Or four? Maybe the first three didn't go exactly as desired?
    Because they just made a change affecting how the system behaves when the engines start?

  20. #4130
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    Because they can?

    It has, after all, taken months for SLS to do one static fire.

  21. #4131
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    Quote Originally Posted by cjameshuff View Post
    Because they just made a change affecting how the system behaves when the engines start?
    This seems likely, either confirming a setup or multiple checks using different parameters.
    With sufficient thrust, water towers fly just fine.

  22. #4132
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    Yeah. Raptor is, after all, intended to be a highly reusable engine. And I think their record to date has clearly shown that SpaceX does not tend to drag their feet.

  23. #4133
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    SpaceX's Starship SN9 prototype fires up rocket engines three times in one day. The three-engine SN9 vehicle performed its second, third and fourth "static fire" tests in quick succession today (Jan. 13) at SpaceX's South Texas facilities, near the Gulf Coast village of Boca Chica. The engines lit up briefly at 1:28 p.m. EST (1828 GMT), again at 3:22 p.m. EST (2022 GMT) and then yet again at 4:36 p.m. EST (2136 GMT). During static fires, engines blaze briefly while a vehicle remains tethered to the ground. SN9 already had one such test under its belt, having completed a short static fire on Jan. 6. These tests are part of the launch preparations for SN9, which will take to the skies in the coming days or weeks if all goes according to plan. SN9's flight is expected to be similar to the one performed last month by its predecessor, SN8, which soared about 7.8 miles (12.5 kilometers) into the South Texas skies.

    https://www.space.com/spacex-starshi...tic-fire-tests
    Do good work. —Virgil Ivan "Gus" Grissom

  24. #4134
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    SpaceX wins contracts for lunar lander, environmental satellite launches. Intuitive Machines announced that it selected SpaceX for the launch of its IM-2 lunar lander mission on a Falcon 9 rocket no earlier than 2022. IM-2 will land in the south polar region of the moon carrying payloads arranged through the agency’s Commercial Lunar Payload Services (CLPS) program in October. The IM-2 mission will fly a drilling experiment called Polar Resources Ice Mining Experiment 1 (PRIME-1), which will look for water ice below the lunar surface. Intuitive Machines said that, besides the PRIME-1 drill, two other NASA technology payloads will fly on the lander. Intuitive Machines also selected SpaceX for its first lander mission, IM-1. That spacecraft is scheduled to launch later this year as one of the first two CLPS lander missions. Both missions will use a lander design called Nova-C.

    https://spacenews.com/spacex-wins-co...lite-launches/
    Do good work. —Virgil Ivan "Gus" Grissom

  25. #4135
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    With all the static tests, you are going to have Ray's "Rocket Summer" out in the cold

    Some help with landing legs?
    https://www.space.com/origami-inspir...-landings.html

    "The chain composed of the origami cells showed … counterintuitive wave motion: Even though the compressive pushing force from the device started the whole reaction, that force never made it to the other end of the chain," University of Washington researchers said in the statement. "Instead, it was replaced by the tension force that started as the first unit cells returned to normal, and propagated faster and faster down the chain. So the unit cells at the end of the chain only felt the tension force pulling them back."

  26. #4136
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    Sounds like they're targeting this weekend for SN-09's flight. No road closures yet, but they could come Friday (tomorrow).

    FAA Temporary Flight Restrictions

    Date: Saturday January 16
    Window: ?? (assumed: 0900 - 1800)
    Altitude: unlimited

    Date: Sunday, January 17
    Window: ?? (assumed 0900 - 1800)
    Altitude: unlimited

    The 16th is also SLS's Green Run test

  27. #4137
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    SN-09 apogee: 10 km (high altitude winds)

    Swapping out 2 engines, using 2 from the barn.

  28. #4138
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    2 Raptors installed overnight, and some work inside the tanks.

  29. #4139
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    Jan. 18: A SpaceX Falcon 9 rocket will launch approximately 60 satellites for SpaceX's Starlink broadband network, a mission designated Starlink 16. It will lift off from Kennedy Space Center in Florida, at 8:45 a.m. EST (1345 GMT).

    Jan. 21: A SpaceX Falcon 9 rocket will launch the Transporter 1 rideshare mission with dozens of tiny satellites for commercial and government customers. It will lift off from Cape Canaveral Space Force Station in Florida, at 9:24 a.m. EST (1424 GMT).

    https://www.space.com/32286-space-calendar.html
    Do good work. —Virgil Ivan "Gus" Grissom

  30. #4140
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    Quote Originally Posted by docmordrid View Post
    2 Raptors installed overnight, and some work inside the tanks.
    If they've changed engines, shouldn't they do a static fire again?

    Quote Originally Posted by Roger E. Moore View Post
    Jan. 18: A SpaceX Falcon 9 rocket will launch approximately 60 satellites for SpaceX's Starlink broadband network, a mission designated Starlink 16. It will lift off from Kennedy Space Center in Florida, at 8:45 a.m. EST (1345 GMT).

    Jan. 21: A SpaceX Falcon 9 rocket will launch the Transporter 1 rideshare mission with dozens of tiny satellites for commercial and government customers. It will lift off from Cape Canaveral Space Force Station in Florida, at 9:24 a.m. EST (1424 GMT).

    https://www.space.com/32286-space-calendar.html
    The two different descriptions of the launch site made me chuckle!
    Cum catapultae proscriptae erunt tum soli proscript catapultas habebunt.

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