All Questions
154
questions
3
votes
1
answer
290
views
When chopsticks catch the booster by the grid fins, what is the maximum vertical speed?
How much vertical speed can the grid fins handle before breaking off?
- 209
0
votes
1
answer
154
views
What caused the falcon booster landing failure during the CRS-16 mission?
On December 5, 2018 the Falcon 9 booster started spinning during the landing burn, and promptly appears to have soft landed on the ocean. While SpaceX stated that the booster could be reused it never ...
- 3,746
5
votes
1
answer
274
views
Why did the June 2016 SpaceX launch run out of propellant?
In other words, what caused SpaceX to miscalculate the amount of propellant required to safely land the booster. They had landed successfully on the drone ship in April. So what went wrong here? What ...
- 3,746
4
votes
1
answer
290
views
Does a RTLS (Return To Launch Site) landing deposit more soot on the booster than a drone ship landing?
First, it performs an extra burn (the boostback burn). Does this burn make a credible source of extra soot? Second, sometimes it appears to have flown through the second stage's exhaust plume. Does ...
- 3,746
3
votes
1
answer
710
views
How do SpaceX intend to transport their starship/super heavy?
One of the design constraints of the Falcon 9, its skinniness, is to allow it to be transported by truck back to the launch site.
Falcon 9 is 3.7 metres in diameter, whereas Starship and the super ...
- 6,468
3
votes
1
answer
178
views
SpaceX live broadcast of booster & boat's eye view of the GPS III Space Vehicle 5 were both uninterrupted; have they make some upgrades to the system?
This answer to Why does the video feed always fail during Falcon 9 landings? shows that SpaceX seems to be "getting better at" or "less shy about" broadcasting continuous live ...
- 149k
1
vote
0
answers
34
views
Why did SN10 rest at a slight incline after landing? [duplicate]
Recently when SpaceX's SN10 landed, before it exploded, it sat still on the ground for a few minutes.
It appears to be resting at a slight incline.
Why is this?
- 171
34
votes
8
answers
9k
views
Why not land SpaceX's Starship like a plane?
I get the reasoning behind designing Starship to land upright. It doesn't require landing gear and the turnaround is expected to be much faster. But I'm beginning to question that logic.
I think the ...
- 457
6
votes
1
answer
475
views
SpaceX Starship: Could they use the Vacuum engines during landing in case of other engine failure?
With the recent test (and RUD due to single engine relight failure) of SN-9, Musk has stated that what they should've done was light all three raptor engines simultaneously then turn one off so as to ...
- 6,468
1
vote
1
answer
504
views
How long is Falcon 9 suicide burn?
My question is
How long is a Falcon 9 suicide burn?
I assume the answer might vary between rides, depending on the payload lifted and its destination orbit so the time might not be the same for a ...
- 113
4
votes
1
answer
264
views
Starship deceleration during belly flop?
Was just wondering what level of deceleration did they get during that belly flop manouver?
Updated:
Hiya, you're all correct, and I was a tad vague in my question! What I'm after is the vertical ...
- 41
5
votes
1
answer
112
views
Does the SpaceX Falcon 9 first stage fleet, fly in order?
SpaceX by the end of 2020, made it very clear that they have solved the first stage reflight problem. Two cores have flown 7 times. Several are over 4 flights. At the beginning of 2021 they have about ...
- 80k
1
vote
1
answer
726
views
Can Starship use dedicated smaller auxiliary landing fuel tanks?
Would it be better for Starship to have a separate set of small fuel tanks dedicated to landing the ship, maybe controlled separately or plumbed differently.
7
votes
1
answer
110
views
Is there possible engine damage without launch platform on Mars return flight?
When a Starship has landed on Mars, there is not going to be any kind of prepared platform initially. (That may be a task for early crews to resolve).
Is there the possibility that Starship, sitting ...
- 71
7
votes
2
answers
620
views
How heavy is SpaceX's Octagrabber?
SpaceX's drone ships have a vehicle that drives under a booster after landing and then clamps onto it to secure it. Photos of it suggest that it has neither ballast nor any way to clamp onto the ...
- 12.2k