Physics Forums » Aerospace Engineering
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Physics Forums » Aerospace Engineering
1w ago
Does the ISS remain oriented with the Earth? I.e. it rotates 360 degrees every 24 hours, or is it fixed with the stars?
If the latter, there should be a time when it's visible end-on.
I looked it up but did not find the deets.
I guess that what the gyros are for ..read more
Physics Forums » Aerospace Engineering
2w ago
Hello, I'm looking for information on materials used in the nozzle thermal protection.
In particular I'm interested in a protection made by different layers, an inner/outer lining, a conductive and an insulating layer, whitout rigenerative/film cooling.
I would like to know typical mateials used...
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Physics Forums » Aerospace Engineering
1M ago
Dear Forum,
I'd like to talk about the formulas about aerodynamic calculations.
Let's focus on the lift force.
As you may know, the lift force is computed as
The CL coefficient can be decomposed with a Taylor serie which is
Now, each coefficient can be rewritten in...
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Physics Forums » Aerospace Engineering
2M ago
Supposedly, testing is happening this year. It's not clear though is they are talking about Summer in Australia (Jan-Feb (beginning of 2024) or Dec (end of 2024)), or in the US (June - Aug).
From 2023 - New Pentagon-funded hypersonic test vehicle could fly in summer 2024...
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Physics Forums » Aerospace Engineering
2M ago
Hello everyone,
I'm looking into the use of nuclear detonations for scientific exploration on Mars and similar rocky planets. Currently, our tools for seismic and subsurface research on extraterrestrial bodies primarily include impactors and rover drills. For context, the largest recorded...
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Physics Forums » Aerospace Engineering
2M ago
https://interestingengineering.com/innovation/spacex-raptor-engine-test-explosion
In a tweet accompanying a clip from the footage, NASASpaceflight wrote, “The raptor testing stand at McGregor experienced an anomaly a few moments ago. The vapors from the anomaly caused a secondary...
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Physics Forums » Aerospace Engineering
2M ago
Let's say we have an egg-shaped (for better drag) 1500 kg cargo container and a acceleration system that accelerates that container and launches it at sea level to reach 160 km on its own without any engine. What speed should be applied to this 1500 kg container at sea level, so it reaches 160...
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Physics Forums » Aerospace Engineering
2M ago
Saw this equation on Nasa's website about lift equation:
I'm trying to build a miniature helicopter and decided to test that equation.
For CI I used 0.5 because I saw a graph where flat air foils gets 0.5 CI when placed at around 10 degrees.
For air density I went with 1.225...
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Physics Forums » Aerospace Engineering
3M ago
Saw this equation on Nasa's website about lift equation:
I'm trying to build a miniature helicopter and decided to test that equation.
For CI I used 0.5 because I saw a graph where flat air foils gets 0.5 CI when placed at around 10 degrees.
For air density I went with 1.225...
Read more ..read more
Physics Forums » Aerospace Engineering
3M ago
So basically i am vary green when it comes to equations/formula
Well to the point i don't even know if proper name for what i'm looking for is called equation or formula but let's stick to equation
So going as simple as i can
I want to throw boomerang creating boomerang like ellipse trajectory...
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