Nice pictures of Booster 9 on the Orbital Launch Mount.
SpaceX @SpaceX 7:36 PM · Aug 22, 2023
Super Heavy Booster 9 transported back to the orbital launch pad at Starbase for additional preflight testing
Nice pictures of Booster 9 on the Orbital Launch Mount.
SpaceX @SpaceX 7:36 PM · Aug 22, 2023
Super Heavy Booster 9 transported back to the orbital launch pad at Starbase for additional preflight testing
There's a lot more than what AutoTL;DR reported. The article is by Stephen Clark, who now swaps out with Eric Berger on the weekly roundup article for ArsTechnica.
I'm curious about the downvoting.
A bit of talk about the recent static fire, where 4 engines didn't ignite. /u/warp99 stated,
There have been a lot of subsequent tests on the GSE that supplies spin up gas to the outer ring of 20 engines.
That certainly implies that the four that failed to start cleanly may have been starved of spin up gas as all outer engines started together.
With IFT1 the startup process was staggered over three seconds and three groups of engines. SpaceX are going to cut that startup time in half which likely means starting in two groups which are probably all inners followed by all outer engines.
I think that's an interesting take, and more reassuring than engine problems, which a lot of other people have assumed.
In re the 15-degree engine firing gimbal test mentioned here:
Musk xeexed 3:11 AM · Aug 18, 2023: "Landing burn max gimbal deflection"
The deluge mentioned in the linked timeline from /u/santacfan:
Anthony Gomez @AnthonyFGomez 9:56 PM · Aug 18, 2023
Suppression system is pretty wild. It almost sounded like a static fire. Bravo, @SpaceX That was one heck of a show.
It was! It is loud, though. With the nighttime video and muted dark colors, it looked astonishing! I wish I could download it, it's so artistic ... but of course that would be copyright violation and I would never recommend that.
Abhi Tripathi @SpaceAbhi 6:32 PM · Aug 16, 2023:
For context, in my relevant personal experience the FAA doesn't just receive a mishap report thrown over a wall at them. They are read into the investigation and findings and corrective actions all along the way and not surprised. So I would disagree with the word "nuts."
in describing sending the FAA the report on August 16 and immediately getting a Notice to Mariners for August 31.
The poster also doesn’t recognize that the FAA typically doesn’t issue a bunch of corrective actions in these cases. They often approve or comment against the self identified corrective actions.
Generically speaking: In all the Aerospace investigations I’ve worked on, corrective actions don’t start only when a report is issued. They start on Day 1.
SpaceX @SpaceX 2:42 PM · Aug 17, 2023
Long duration test fire of Raptor while gimbaled 15 degrees
Lots of discussion about why there was such a test. Some suggesting that it was for Starship for hot staging. Others saying that the new hot-staging ring has such a high dome in it that the sea-level engine gimballing so far wouldn't actually help.
Some comments about how 15 degrees is really high, like Saturn V first stage having 5 degrees, and 3-8 is more common. The Space Shuttle has 12.5 for the RS-25, but the new ones are certified for only 6. The suggestion was that this is because the stages need to be able to flip.
Nice picture of Starship 29 rolling out of a high bay. Courtesy of Starship Gazer @StarshipGazer here.
Static fire attempt scheduled for tomorrow (Friday, 24 August 2023). Mary got a notice, pictured here.