Questions tagged [development]

Relating to creating, testing, and refining technology used in space exploration.

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What is the TRL of a skyhook?

A recent answer on this question mentioned that skyhooks have a low TRL. This is probably due to many factors since they have not been built yet. What is the current TRL/status of skyhooks and what is ...
The Rocket fan's user avatar
2 votes
1 answer
215 views

Is there any way to predict if the ISS will lose its signal or to know it directly?

I am currently working on a project by using the ISS livestream: https://video.ibm.com/channel/iss-hdev-payload But sometimes there is a loss-of-signal and it displays a screen that breaks the ...
renadr's user avatar
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How to Get Space Heritage for a Component

If a developed electronics/board/chip/etc. wanted to have a space/flight heritage, is there any typical way to get that? Edit: As some mentioned I was not clear, I'm talking from a manufacturer point ...
Mohamed Abduljawad's user avatar
3 votes
1 answer
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Do forward thinking launch providers like SpaceX, Blue Origin or Virgin Galactic fund any carbon nanotube research?

Elon Musk has indicated (ex.: Tweet) that he has little interest in carbon nanotubes (CNTs) with respect to the concept of an orbital elevator, claiming in essence that the development is simply not ...
DJG's user avatar
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Is there any significant difference between NASA and EU technology readiness levels?

The wikipedia article for technology readiness levels lists the NASA and European Union definitions. I've put these into a table: Level NASA EU 1 Basic principles observed and reported Basic ...
DrSheldon's user avatar
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How are operational procedures developed?

In anticipation of the upcoming Ingenuity flight, I have found myself wondering how procedures are developed by spacecraft operators. How is a go/no go procedure created? How does the team create a ...
user1380's user avatar
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What's the current state of Venus orbital infrastructure?

As per this Wikipedia article there have been a total of 5 orbiters successfully deployed to Venus: Venera-15 Venera-16 Magellan Venus Express Akatsuki Of which only the Akatsuki seems to be ...
Krumuvecis's user avatar
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What's the current state of Mars orbital infrastructure?

As per this Wikipedia article Mars currently has 6 operational artificial satellites: 2001 Mars Odyssey Mars Express Mars Reconnaissance Orbiter Mars Orbiter Mission Mars Atmosphere and Volatile ...
Krumuvecis's user avatar
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Ejection Velocity of a CubeSat on Mars? [closed]

I am trying to decide whether or not I would need to add propulsion systems onto my 3U cubesat if it is being deployed in the Mars atmosphere. From what I've found so far, cubesats are typically ...
user35520's user avatar
6 votes
1 answer
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Are there active (as of 2020) developments in liquid-fuel tank technology?

This question was broken off from previous mega-question located here. I am aware of the broad liquid fuel tank types: V-2-style steel fuselage Integral steel Integral aluminum (with varying types ...
Anton Hengst's user avatar
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How has NASA's mission operations software architecture evolved?

As many of us know, the mission operations software of NASA has changed significantly over time. Needs have changed with the space program and mission operations software has adapted to keep up with ...
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Why is a purging process necessary for static firing test of liquid rocket engines?

In Chapter 7 of Modern Engineering for Design of Liquid propellant Rocket Engines by Huzel and Huang, mentions the following engine cut off procedure. The cutoff sequence usually consists of ...
karthikeyan's user avatar
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What is the geometric dimensions of turbo pumps present in SSME?

Here is a really well documented and detailed explanation of the SSME engine. Looking through this, one can notice that there are no details of the dimensions. I would like to know about the ...
karthikeyan's user avatar
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What is the surrogate liquid for LOx during the preliminary testing of injectors?

Before transitioning to the LOx tests during any new injector development, water is typically used for calculating flow rates, pressure loss, etc. But testing with water cannot qualify as a suitable ...
karthikeyan's user avatar
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Does stress-testing a spacecraft affect its durability?

When a spacecraft is built and prepared for a future launch, its parts and the whole spacecraft usually goes through a lot of testing - for example, the James Webb telescope has already been through ...
alecxe's user avatar
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What is the current status of delta IV heavy 7 (in 2017)?

I cannot find references if the Delta IV heavy 7 except on this wikipedia image. It consists of a Delta IV heavy with 6 boosters. There may be a need for such powerfull launcher (otherwise the SLS' ...
Manu H's user avatar
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Is ISRO Making a Methane Engine?

I'd read some stray comment on the internet claiming that ISRO is working on a methane-LOX engine, just as a technology demonstrator. Is this true?
san man's user avatar
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Why aren't superconductors used more in space?

The worst obstacle and the primary roadblock to using superconductors on Earth is the ambient temperature which necessitates a coolant like LN2 or even liquid Helium (and a lot of energy for creating ...
SF.'s user avatar
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2 votes
1 answer
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How can new LEO manned launch vehicle development costs be reduced?

I was looking through the historical record and found that over time the money input into rocket development has yielded more performance benefits. I imagine that the development cost has reduced ...
user11377's user avatar
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Why are the exhaust plumes exiting the nozzles of SpaceShip Two segmented along their length?

Here is a photo of SpaceShip 2's exhaust shortly after ignition during the test flight in January Why do they have that segmented structure, and how does it affect thrust?
kim holder's user avatar
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