Questions tagged [aircraft]
Aircraft are man-made vehicles intended to operate while flying through Earth's atmosphere.
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Using gyroscopes to turn airplanes
Could multiple gyroscopes be used to change direction in a flying vehicle? Im a physics noob and don't really know what else to add...
If having one gyroscope allows you to change your direction in 90°...
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Can ellipsoid aircraft reach high speeds [closed]
Imagining an ellipsoid aircraft/spacecraft something like
Could something like this reach high speeds? Assuming those nacelles hold some high tech ramjets or something equally powerful. I noticed ...
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What is the difference between a kite and a glider?
A kite and a glider, both fly without an engine. If both are unpowered, then what is the difference between a kite and a glider? Are all gliders kites? Or are all kites gliders? How do they differ? ...
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Propeller Spiral Slipstream
I know the common accepted answer is that in an airplane, the propeller pushes air back but imparts rotational flow to the air, and the rotating air around the body of the aircraft hits the back ...
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"Constant thrust" engine vs "constant power" engine
I read that a piston engine, under maximum fuel intake, provides constant power, while the thrust depends on velocity, while a jet engine is the opposite - provides constant thrust, with the power ...
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Why don't CPU fans have the buzzsaw effect (as in planes), even when their blades spin faster than 5k RPM? [closed]
I saw my CPU fan using HWinfo spinning faster than 5k RPM, in which the buzzsaw effect starts in an A3xx plane. Why doesn't my CPU fan do the buzzsaw effect, even though it's spinning faster than 5k ...
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Finding aerodynamic coefficients of an airfoil using numerical data measured in wind tunnel
I am trying to find all the aerodynamic coefficients of an airfoil at different angles of attack. I have .DAT files for data which have 4 columns of data all in order {angle of attack[deg], Lift[N], ...
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Measuring Bernoulli in airplanes
One common explanation for airplane lift is that air pressure over the wing both moves faster and has lower pressure, a la Bernoulli. A very different explanation is that air is deflected downward by ...
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Why does Wind Velocity over a wing to increases and what is its cause?
Why does wind velocity increase over a wing?
Also I have a bit of a paradox, people explain lift by saying there is a lower pressure region on the top of the airfoil and a higher pressure region on ...
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What is the bare minimum of air density you need to fly a helicopter?
How high will a helicopter be able to fly before the propellers have not enough air particles to achieve lift?
What is the minimum air density needed to achieve flight with a helicopter?
Could you ...
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Why is the propulsive force related Coriolis term ignored in flight dynamics (rocket equation)?
Consider a variable mass vehicle body $B$ with it's center of mass $B$ stationary with respect to the body fixed referenced frame $B$. We obtain the translational dynamics of the variable mass body as ...
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Swords and wing flutter
In order to retain structural integrity it is understandable that a sword has to be flexible enough to be able to absorb impact without shattering and rigid enough to not be bent due to it.
Is this ...
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Yet another airplane question
The point of discussion here is the pressure distribution across an airfoil.
In order to simplify the question, I'd like to consider an airfoil which looks like a triangle wedge with the blunt face of ...
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How to derive the bank angle of an aircraft from its roll angle and pitch angle?
From Young (2017) (https://onlinelibrary.wiley.com/doi/book/10.1002/9781118534786) it is stated that we can define the bank angle ($\Phi$) of an aircraft as the angle between its Y body axis and the ...
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How does a ram-air parachute move forward?
I'm trying to understand the "physics" behind the flight of a ram air parachute,
Do you know / how could I know, whether the main parameter that makes a ram-air parachute move forward is:
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