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Results tagged with failure
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user 36625
Questions regarding missions or parts of missions which were not successful.
2
votes
1
answer
140
views
Accidents where discarded stages are propelled by vaporized propellant?
Falcon 1 flight 3 failed when propellant vaporized in the detached first stage's engine, causing it to slam into the second stage. Has this happened to any other launch vehicle? Do launch vehicles usu …
1
vote
1
answer
118
views
What caused the premature loss of Super Heavy Booster 10 on IFT-3?
We are told that engine failures caused the booster to be underpowered during landing. In that case, one would expect the booster to slam into the sea. Instead, telemetry cut our at 463m above sea lev …
3
votes
2
answers
2k
views
Did the April 20 explosion invalidate the Starship launch license?
I had heard that the reason Starship launch was being delayed was because they were doing an environmental impact assessment. During the April 17 NASASpaceflight coverage
, it was stated that this was …
8
votes
2
answers
712
views
What is the oxygen filter on Super Heavy, and how could it get blocked on IFT-3?
https://en.wikipedia.org/wiki/SpaceX_Starship_integrated_flight_test_2
On February 26, 2024, SpaceX stated that the most likely root cause was filter blockage where liquid oxygen is supplied to the e …
4
votes
0
answers
171
views
What if Soyuz re-entered with orbital module attached?
Soyuz 5 and Soyuz TMA-11 survived reentry with an attached Service Module, which simply burned off. There have been no accidents where the Orbital Module has remained attached. What would be the outco …
2
votes
2
answers
351
views
Riding out an exploding rocket
It is known that at least some of Challenger's crew survived the explosion, while conscious. If the cabin had a parachute, they may have lived. This is despite the Space Shuttle stack being one of the …
3
votes
2
answers
379
views
When lower stages explode, can upper stages just fire and escape?
If Superheavy fails during launch (or even fails to launch in an unsafe way) the Starship itself might well be able to just light its engines and fly a suitable suborbital trajectory to a safe landin …
6
votes
0
answers
240
views
How do spacecraft protect their engines from micrometeroids?
A meteoroid impact on an engine bell can easily rupture a coolant pipe. Or it can create an imperfection in the backing plate from where cracks can form. Or it can destroy an injector. All of these ca …
2
votes
1
answer
194
views
Starship IFT-4: flashes below hypersonic speed
In the camera feed, we see occasional bright flashes well after the ship has ceased being hypersonic.
Then at 700km/h the flashes suddenly increase to the point that it looks as if the ship has caught …
1
vote
0
answers
78
views
What if satellites could be recovered during a launch failure? [duplicate]
How heavy would a capsule have to be to return a satellite safely to earth in the event of a launch failure? Would a satellite survive the loads endured by astronauts during an abort? … If it becomes unfeasible to provide full coverage, how useful would it be to cover during a first stage failure only? (Since this is when fairings are normally attached anyway) …
1
vote
1
answer
525
views
Why was the launchpad not destroyed during Super Heavy test firings?
It's becoming clear now that the 4/20 launch devastated the launchpad, leaving a massive crater and flinging debris - perhaps into the booster itself.
But why did this not happen during test firings o …
1
vote
2
answers
350
views
Why didn't SpaceX scrub the 4/20 Starship launch when they saw the launch pad being shredded?
While Starship took to the skies on its maiden flight, the slow build of power started to devastate the launch pad (or Stage Zero as SpaceX refers to it) and surrounding area with debris. Though curr …
11
votes
1
answer
4k
views
Does a fully loaded Starship really have a thrust to weight ratio less than 1 at sea level?
If Superheavy fails during launch (or even fails to launch in an unsafe way) the Starship itself might well be able to just light its engines and fly a suitable suborbital trajectory
https://space.s …
1
vote
0
answers
52
views
Launch excapse system for satellite payloads? [duplicate]
Crewed flights always have some way to save the payload in case of failure.
What if a launch failure was not the end of a payload? … What would be the penalties (weight, cost, new failure modes, etc) of the system? …
-7
votes
2
answers
240
views
How do we know Starship 28 was lost?
As I see it, they lost communications, and almost immediately called it a loss. This seems odd. Surely a blackout is expected due to the plasma?