Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 36625

Questions regarding SpaceX's Starship, formerly the Big Falcon Rocket (BFR) upper stage or BFS

1 vote
2 answers
450 views

How precise does Super Heavy's tower landing have to be?

What is the position and velocity range it needs to fit in, to be safely caught by the Orbital Launch Mount?
Abdullah is not an Amalekite's user avatar
3 votes
2 answers
843 views

What are these composite overwrapped pressure vessels on Super Heavy?

https://en.wikipedia.org/wiki/SpaceX_Super_Heavy The oxygen tank has four chines attached. These protect the various COPVs on board, as well as providing lift during flight. First I've heard of thes …
Abdullah is not an Amalekite's user avatar
-2 votes
1 answer
88 views

How much propellent is vaporized to pressurize the Starship and Super Heavy tanks?

We know they use autogenous pressurization. But how much methane and oxygen is vaporised to do this? I would like a figure for each of the 8 individual tanks in the stack. TBH I'm trying to figure out …
Abdullah is not an Amalekite's user avatar
3 votes
1 answer
181 views

Why does an expendable Starship launch cost only $100 million?

Even the Falcon Heavy with a third the payload costs $150 million. And yet we have Payload Research saying that an expendable Starship launch costs less?
Abdullah is not an Amalekite's user avatar
5 votes
3 answers
242 views

Has IFT-4 demonstrated that Starship is ready to enter service?

IFT-4 demonstrated a controlled entry into orbit. IFT-3 had already demonstrated the ability to open the payload bay door (or so SpaceX claims). Is there any reason why Starship cannot begin launching …
Abdullah is not an Amalekite's user avatar
-1 votes
1 answer
109 views

How much energy is used for a Starship launch? [duplicate]

I want to understand how Earth will support the thousands of Starships Musk envisions. I'm talking about the energy expended in all launch-related processes: propellant generation, transportation, del …
Abdullah is not an Amalekite's user avatar
7 votes
1 answer
977 views

Starship IFT-4: whatever happened to the fin tip camera feed?

During reentry, there were two camera views. The view that looked at one of the flap hinges wound up getting ruined when the hinge failed, because debris and heat ruined the lens. But they never switc …
Abdullah is not an Amalekite's user avatar
-1 votes
1 answer
176 views

Why will SpaceX fly a Block 1 ship on IFT-6? [duplicate]

While writing this question, I was directed to the question Why doesn't SpaceX plan on doing anything new on IFT-6? The top answer basically says it's because Block 2 is totally different. They now ha …
Abdullah is not an Amalekite's user avatar
1 vote
0 answers
157 views

What if the Starship fins were fixed?

The body flaps on Starship have the responsibilty of controlling attitude during atmospheric flight. They are also needed to deal with the large moments created by carrying payloads in the nose. Movab …
Abdullah is not an Amalekite's user avatar
0 votes
1 answer
165 views

SpaceX Raptor Vs Raptor Boost

I'm asking all these questions as one because I don't think they're worth cluttering the site separately for. How much does Raptor Boost weigh compared to normal Raptor? How much more thrust does Ra …
Abdullah is not an Amalekite's user avatar
1 vote
0 answers
104 views

Is Starship monocoqué?

Does Starship have any internal bracing to support it? Or is it a "balloon tank" relying on tank pressure to stand?
Abdullah is not an Amalekite's user avatar
10 votes
2 answers
2k views

Starship IFT-3: Plasma appears, then disappears

How is that possible? It's not like it lost velocity or gained altitude in that time period.
Abdullah is not an Amalekite's user avatar
0 votes
1 answer
155 views

Where are the Raptor Boost engines on Super Heavy?

SpaceX Super Heavy has two types of Raptor, one of them being Raptor Boost, which has no gimbals and limited throttling but increased thrust. But I can't find information on Wikipedia on how many ther …
Abdullah is not an Amalekite's user avatar
8 votes
1 answer
608 views

How are engines numbered on Starship and Super Heavy?

I was watching this video summarizing Elon Musk's recent remarks on the orbital test flight, and they mention specific engines. But unless a named engine shuts down and is shown on the small display i …
Abdullah is not an Amalekite's user avatar
18 votes
3 answers
4k views

On April 20 2023, how did Super Heavy burn for 40% longer than planned?

The launch profile as planned had the booster shutting down at 169 seconds. In the event, it burned for 239s, or more than 40% longer. We know that the booster lost 5-7 engines during the flight, acco …
Abdullah is not an Amalekite's user avatar

15 30 50 per page