All Questions
Tagged with aerospace-engineering rocketry
15
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Assuming sufficient electrical power, is an electrolysed oxyhydrogen rocket practical?
Assume we have access to light electrical power e.g. a (hypothetical) small fusion reactor.
Is it practical to operate a water-fuelled rocket, in which water is converted to hydrogen and oxygen (or ...
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In orbit rocket launch
If fuel is sent into space in bulk using space station as a "Fuel Depot", then how fast and efficient could in orbit launches of objects like probes, etc be? Rockets use huge amounts of fuel ...
- 599
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What is the optimal weight ratio for a multistage water rocket?
I do know about the Tsiolkovsky rocket equation for optimising multistage rockets, however the equation requires a fixed exhaust velocity which is something that water rockets don't have, so for this ...
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F-1 rocket engine - gas generator data
I’m doing some research on Rocketdyne F-1 engine of Saturn V. In particular I am searching geometric data of the gas generator that feeds the turbo pump. Has someone found this kind of data? It seems ...
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How to use a high current 2 Second current pulse to actuate a servo - First year Electrical Engineer
I am using a dual deployment system controller, an Eggtimer Quark REVC2 which at apogee outputs a high current 2 second pulse. I don't have time to buy a more advanced Eggtimer which outputs proper ...
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696
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Is There A Schematic of Hoeltzer's Mischgerät V2/A4 Electronic Guidance Computer?
As a retro computing hobby project, I'm researching Helmut Hoeltzer's (Hölzer's) work on the Mischgerät analog guidance computer for the V2/A4 ballistic missile, with the goal of validating a ...
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Multiple vs single rocket engine nozzles [closed]
I am an aeronautical engineering student and at university with a group of friends we are are working on building a rocket aimed at getting past the Karman Line (boundary to space).
We will be ...
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Why do rockets not fly straight up after launching; wouldn’t that be less atmosphere to traverse?
If you look at any launch it appears as though rockets do not take the shortest path. Their trajectory bends. Why do rockets not fly straight up after launching; wouldn’t that be less atmosphere to ...
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Rocket vs aeroplane? Difference in take off?
Although both aeroplane and rocket burn fule and eject smoke but
Why aeroplane moves and runs horizontally before take off ?why does not it takes off at its original/initial place just like rocket?
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How to minimize temperature increase caused by compression of a cryogenic liquid in a multistage high pressure turbopump?
The cryogenic fuel I'm using is methane at 100 K and 300,000 Pa.
Based on my calculations, after compression, the pressure is 55 MPa and using the ideal gas equation the temperature is approx. 800 K.
...
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Is there an easier way to calculate rocket engine Isp?
I am trying to calculate the $I_{sp}$ of a rocket with a thrust of 500 kN. I know that you can calculate $I_{sp}$ with $I_{sp} = \dfrac{v_e}{g_0}$. However, to calculate $v_e$, you need the $I_{...
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Method of Characteristics nozzle - outputs area ratio?
I am designing a rocket engine as my final project at college, and I tried using a MatLab code developed by youtuber JoshTheEngineer. However, after running the code, it seems that the output points ...
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106
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the speed of the exhaust
This is from Stephen Hawking's latest book; Brief Answers to the Big Questions.
The speed at which we can send a rocket is governed by two things, the speed of the exhaust and the fraction of its ...
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What is the purpose of building multistage rockets, rather then packing more fuel into a single stage?
Reading an article about multistage rockets (not educated at all on the topic), and from the get go it seems to assume they are used/need to be used.
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111
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Rocket to slow freefall
I read that a human
https://www.google.co.uk/search?client=ms-android-samsung&ei=l0_EWNjsHKXEgAafuIUg&q=john+stapp+45+g&oq=john+stapp+45&gs_l=mobile-gws-serp.1.0.0.6460.9902.0.10829....
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