Re: “SpaceX reached space with Starship Flight 9 launch, then lost control of its giant spaceship (video)”

On 6/3/2025 2:05 PM, Cryptoengineer wrote:

On 6/2/2025 4:36 PM, Lynn McGuire wrote:

On 5/30/2025 12:23 PM, Cryptoengineer wrote:

On 5/29/2025 3:55 PM, Lynn McGuire wrote:

On 5/29/2025 4:05 AM, Robert Carnegie wrote:

On 29/05/2025 00:07, Lynn McGuire wrote:

“SpaceX reached space with Starship Flight 9 launch, then lost control of its giant spaceship (video)”
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https://www.space.com/space-exploration/launches-spacecraft/ spacex- launches-starship-flight-9-to-space-in-historic-reuse-of- giant- megarocket-video
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“SpaceX launched its Starship megarocket for the ninth time ever today (May 27), on a bold test flight that featured the first- ever significant reuse of Starship hardware.”
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“Starship‘s two stages separated as planned on Flight 9, and the upper stage even reached space, which was an improvement over the giant vehicle’s most recent two flights. But SpaceX ended up losing both stages before they could accomplish their full flight goals.”
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“”Starship made it to the scheduled ship engine cutoff, so big improvement over last flight!” SpaceX CEO Elon Musk wrote on social media after the flight. “Leaks caused loss of main tank pressure during the coast and re-entry phase. Lot of good data to review.” Musk said the next three Starship test launches could lift off every three to four weeks in the days ahead.?
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Bummer.

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Next they're going to explode when they
come down.  Has this been thought through?

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This is engineering development at its finest.  Simulation only gets you so far.
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SpaceX is working an incredibly complicated problem.  Weight versus fuel and thrust.  The materials are also a serious complication as the temperature of outer space is extremely variable from cryogenic to hot (the unfiltered Sun shining on parts).

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SpaceX fully expected to lose the booster on the way down. They were
testing using a higher angle of attack approach to reduce required
fuel, and also intended to simulate loss of a atmospheric engine
on the way down, to see if one in the outer ring could compensate.
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The (different) problems that led to the loss of Starship on flights
7 and 8 appear to be solved, but a leak in one of the fuel tanks led
to a loss of pressurization, making attitude control impossible.
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The door for the 'pez dispenser' to release satellites didn't work,
not clear why.
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pt

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The new version 3 Starlink satellites are huge, the size of a 737 according to Musk.
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Lynn
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Cite? They have to fit in Starship's 9m wide cargo bay.
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pt

 "SpaceX’s New Starlink V3 Satellites Are As Large as a 737 & They Hope to Build 1,000 Starships Every Year"
 https://cordcuttersnews.com/spacexs-new-starlink-v3-satellites-are-as- large-as-a-737-they-hope-to-build-1000-starships-every-year/
 "The V3 Starlink satellites are a significant leap forward from the current V2 Mini Optimized models, which are already enhancing the network’s capacity. The upgraded V3 satellites are designed to deliver gigabit internet speeds, boasting an impressive 1Tbps of download bandwidth—10 times that of the V2 models. However, their size presents a logistical challenge. Musk noted, “Those Starlink V3 satellites are each the size of roughly a Boeing 737. They’re pretty big.” To deploy these massive satellites, SpaceX is relying on its Starship vehicle, capable of carrying heavier payloads into orbit."
 https://www.notebookcheck.net/Starlink-V3-satellite-the-size-of- Boeing-737-to-bring-10x-faster-Internet-downloads-and-5-ms-latency-for- gaming.1028369.0.html
 "Since they will be brought up to a lower altitude of 350 km instead of the current 550 km orbit, the Starlink V3 satellites will be able to offer much lower latency of under 20 milliseconds, making it suitable for gaming. Musk then teased Diablo gameplay on Starlink while airborne, saying that the V3 satellite latency can even go down to 5 ms."
 "Besides the lower orbit, Starlink V3 satellites will bring faster Internet speeds and lower latency due to the fact that the laser beams that carry the packets of data travel 40% faster than fiber optics in vacuum."
 "Actually, the V3 satellite that is the size of a Boeing 737 when unfurled will bring 1 Tbps download speeds, or more than ten times what the current V2 generation offers. When it comes to uploads, the improvement will be even more drastic, with 24x the current speeds, or 160 Gbps."
 Lynn