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re: SpaceX Starship Full Stack Test Flight Thread | Cleared Tower, Thru MaxQ, then RUD
Posted on 4/20/23 at 8:58 am to beerandt
Posted on 4/20/23 at 8:58 am to beerandt
quote:
Idk what the failure mode for non-seperation is supposed to be, but I doubt the booster is supposed to try to do it's return maneuver with the 2nd stage still attached.
They said on the feed it was supposed to flip over before separation. And it did. But then it kept flipping and rotating.
But unless I misheard them several times, it was definitely supposed to flip over BEFORE separation.
1
Posted on 4/20/23 at 8:58 am to beerandt
there was a side by side view of the second stage engines and I thought I saw what I think were the explosive bolts firing but no release. I'm probably projecting of what I was expecting to see, but there was some type of commotion in that 2nd stage engine area. Could have been nothing though.
Posted on 4/20/23 at 8:59 am to rt3
quote:
Everything should be automated
Surprised the FTS didn't activate quicker actually
Unless something has changed, FAA or Airforce requires a manual hand on the button on top of any automated self-destruct system.
But that might be part of the Florida/Atlantic eastern tracking range requirements, not general requirements.
Posted on 4/20/23 at 8:59 am to rt3
quote:
I'm sure they have to assess the pad & tank farm for damage from this launch... but booster 9 & Starship 26 should already be built and ready to go
I guess I mean what's the general timeline? Does that stuff take days, weeks months?
Posted on 4/20/23 at 9:01 am to beerandt
I have home video my dad took of mission commander John W. Young and pilot Robert L. Crippen the first two Shuttle Astronauts. The video is of them after the first Shuttle launch attending a ceremony at Michoud in Nola East. St Aug was the marching band bringing them into the facility.
Posted on 4/20/23 at 9:02 am to Jobu93
quote:
there was a side by side view of the second stage engines and I thought I saw what I think were the explosive bolts firing but no release. I'm probably projecting of what I was expecting to see, but there was some type of commotion in that 2nd stage engine area. Could have been nothing though.
Yea, I couldn't tell if it was explosive bolt flashes or light sneaking through the cracks from partial separation.
Posted on 4/20/23 at 9:05 am to beerandt
quote:
Unless something has changed, FAA or Airforce requires a manual hand on the button on top of any automated self-destruct system.
But that might be part of the Florida/Atlantic eastern tracking range requirements, not general requirements.
That used to be the case in Florida. SpaceX successfully demonstrated the capabilities of the automated self-destruct system to the Air Force a few years back, and the Air Force subsequently approved its use.
Posted on 4/20/23 at 9:05 am to CocomoLSU
quote:
I guess I mean what's the general timeline? Does that stuff take days, weeks months?
I would imagine probably at least a few weeks to assess & repair damage
Posted on 4/20/23 at 9:05 am to CocomoLSU
Posted on 4/20/23 at 9:07 am to AutoYes_Clown
quote:
Posted by AutoYes_Clown
Spot on
Posted on 4/20/23 at 9:08 am to castorinho
I'll take my downvotes, but I still say failure and massive expense. So many more things could have been tested. Maybe I'm mixing up test flights?
I thought this mission was to launch the full stack and put Starship into just below orbit. The first stage was to boost back 30 miles downrange and make soft landing in the Gulf of Mexico where it would be sunk and turned into a reef. The Starship itself was to reach just below orbit velocity and perform tests including re-entry guidance and such. It was planned to splash down (not softly) near Hawaii.
I thought this mission was to launch the full stack and put Starship into just below orbit. The first stage was to boost back 30 miles downrange and make soft landing in the Gulf of Mexico where it would be sunk and turned into a reef. The Starship itself was to reach just below orbit velocity and perform tests including re-entry guidance and such. It was planned to splash down (not softly) near Hawaii.
Posted on 4/20/23 at 9:08 am to GEAUXLPOST
Posted on 4/20/23 at 9:10 am to GEAUXLPOST
Posted on 4/20/23 at 9:10 am to The Pirate King
Something positive about the failure to separate:
It's amazing that the first and second stages held together through a number of rotations. You've got to figure the forces pulling at them were incredible.
It's amazing that the first and second stages held together through a number of rotations. You've got to figure the forces pulling at them were incredible.
Posted on 4/20/23 at 9:11 am to LSUFanHouston
quote:
I'd love to hear from the person on the trigger if it's a kill switch. Would be awesome to hear what goes through their mind there
For typical launches from FL and Vandenberg, it's an Airforce range safety officer, and the only criteria for their personal call is whether it leaves the safe flight envelope or is a danger to life on the ground.
There are other possible triggers for self-destruct, but that's the (afaik) universal manual finger-on-the-button one.
This post was edited on 4/20/23 at 9:13 am
Posted on 4/20/23 at 9:12 am to AutoYes_Clown
You thought wrong.
Next
Next
Posted on 4/20/23 at 9:13 am to AutoYes_Clown
The primary goal was liftoff and clearing of the tower. If you agree on that, then they succeeded.
Posted on 4/20/23 at 9:13 am to Jobu93
EnginesPosted on 4/20/23 at 9:14 am to AutoYes_Clown
quote:
I'll take my downvotes, but I still say failure and massive expense. So many more things could have been tested. Maybe I'm mixing up test flights?
I thought this mission was to launch the full stack and put Starship into just below orbit. The first stage was to boost back 30 miles downrange and make soft landing in the Gulf of Mexico where it would be sunk and turned into a reef. The Starship itself was to reach just below orbit velocity and perform tests including re-entry guidance and such. It was planned to splash down (not softly) near Hawaii.
The FAA won't approve a launch license that says "we just hope to clear the tower then blow up"
SpaceX needed a firm path where it would definitely not impact land/people to file with the FAA and get the license
The trove of data from this TEST flight which got through MaxQ on the 1st flight is enormous and will help future tests
I'm sure if you actually asked they would say achieving lift and getting away from the pad was enough of a win for this flight
Next flight... the bar will be higher
This post was edited on 4/20/23 at 9:21 am
Posted on 4/20/23 at 9:15 am to saint tiger225
quote:
Engines
That's more than 5 flame outs if that pic is legit... I see at least 9
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