Questions tagged [reuse]

Questions regarding the reuse of parts or equipment.

16 questions with no upvoted or accepted answers
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15
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1answer
984 views

What is the value of the cross-track angle between the two designated CRS-4 first stage recovery zones?

For the SpaceX Falcon 9 launch on its Dragon/CRS-4 cargo delivery mission to the International Space Station, according to Spaceflight 101, two downrange safety zones have been identified: The SpX-...
8
votes
0answers
219 views

Will SpaceX paint over the NASA Worm on booster 1058 for its next flight?

For the Dragon Crew mission SpaceX flew a brand new booster (how declasse) B1058 and painted it with the old style NASA Worm logo. SpaceX owns the booster and is most likely to fly it many more times ...
6
votes
0answers
94 views

How much cheaper are pressure fed engines compared to other cycles (e.g. staged combustion, gas generator, electric pump-fed)?

It's well known that pressure fed engines are mechanically simpler, and therefore cheaper than pump-fed cycles (although pressure fed has worse performance). However, I haven't found any sources that ...
5
votes
0answers
187 views

Purging process of a rocket engine

Does spacex purge Falcon 9 engines after landing ? If so, which gas is used for purging?
5
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0answers
335 views

Are there any benefits on Venus compared to Earth with respect to reusing launch vehicles?

My assumptions around building up infrastructure for dealing with space launches from Venus assumes colonization based on the principles outlined by Geoffrey A. Landis of NASA in paper Colonization of ...
4
votes
0answers
74 views

Which components are non-reusable after a sub-orbital spaceflight with Virgin Galactic?

I wonder which components are non-reusable after a sub-orbital spaceflight with Virgin Galactic. What I have found so far: https://www.virgingalactic.com/learn/ (mirror): With the exception of the ...
4
votes
0answers
57 views

Atmospheric retro-propulsion performance of aerospike nozzles?

I’m thinking about the use of single toroidal aerospike engine for a reusable upper stage with propulsive landing capability and this question came to mind. Do aerospike nozzles even capable of retro ...
4
votes
1answer
221 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 ...
3
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0answers
71 views

How does Starship/Superheavy system compare with the hypothetical successor of Soviet Energia/Buran system, “Uragan”?

The both were meant to be fully reusable and have comparable scale.
3
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0answers
87 views

Was the Martin Spacemaster a feasible design for a fully reusable launch system?

The first time I saw this design was in this post and I was intrigued. The Martin Spacemaster from ~1970. What a cool design! Lots of SSME's, fully reusable, asymmetrical cockpit, and air breathing ...
3
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0answers
75 views

What plans were made for Buran post-flight processing?

U.S. Space Shuttles underwent considerable post-processing after each flight. Gases, liquids, and payloads were removed; engines were refurbished; thermal tiles were repaired; and everything was ...
2
votes
0answers
57 views

Shuttle main engines RS-25, material damage on parts that needed replacement/refurbishment

Since other members wrote, that my my original question here Shuttle main engines RS-25 refurbishment/material damage was too broad I modified it to asked just one thing, while the other questions I ...
2
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0answers
63 views

How to make a orbital launch tube work?

Normal rockets would not work in a pressurized tube, but could a stage be made for the diagonal launch tube to save fuel and weight? Can the bottom stage be nuclear powered? Unlike the piston launch ...
1
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0answers
71 views

Have studies / worked examples, including mass figures, been published for these reentry methods for reusable upper stages?

(Related: is there a general rule of thumb for thermal protection systems?) For a fully-reusable launch vehicle to be developed, we need a lightweight thermal protection system and method for (...
1
vote
0answers
172 views

Shuttle main engines RS-25 refurbishment/material damage

There was some thread here on Space Stack-Exchange about RS-25 refurbishment, but I am interested now, how this refurbishment look from the point of material damage of SSME hardware. In the early ...
1
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0answers
497 views

How much fuel is necessary for 2nd stage of Falcon 9 rocket to land?

What is the fuel mass nedeed for the 2nd stage of Falcon 9 rocket to land, how much compared with its total fuel mass that it has? Or how much delta-v is necessary? Would it be able for Falcon 9 to ...