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Questions tagged [aircraft]

Aircraft are man-made vehicles intended to operate while flying through Earth's atmosphere.

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0 answers
26 views

How do I learn about Rockets and planes? [closed]

I want to learn how to make aeroplanes and rocket, how they work, etc. I want to be able to make working models. How do I go about it, what books can i read, what videos can I watch for easy, clear ...
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1 answer
253 views

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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1 answer
41 views

Calculating aerodynamic forces on a random object

I've set out to designing a game that would let the user design a vehicle/plane and then fly it around and I'm interested in what would be the best way to go about the physics aspect of it. The 3d ...
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1 answer
33 views

Spinning top stabilisation for a type of aircraft/drone

Spinning tops use gyroscopic precession to be able to stay upright whilst spinning. Would it be possible to use this phenomena to create a flying craft that would be stabilised by gravity and the ...
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2 answers
231 views

How are shockwaves created if no particle goes around the wings at supersonic speed?

so,the title could be a bit misleading, let me elaborate: whenever studying aerodynamics, the explanation starts with considering the wing of a plane still, and the flow of air arriving from either ...
1 vote
0 answers
25 views

Is there a minimum power required to keep a drone or helicopter in the air - and if so, what is it? [duplicate]

Assuming a mass M and horizontal projection of area A for a hovering object (no wind) like a drone or helicopter, what's the minimum power required to keep it hovering? Let's assume no ground effects....
1 vote
0 answers
121 views

In gyroscopic effect of a quadcopter, why does precession cause torque, not vice versa?

I don't know if the header corresponds to my actual quest but i will explain. In quadcopter dynamic equations of Newton-Euler formation that I have encountered in all academic publications, torque ...
-1 votes
2 answers
195 views

How does gravity effect to aircraft in sky?

Aside aerodynamics and buoyancy, Is there a simple way to explain how gravity is negligible in flight paths using free falling body diagram? In a parabolic trajectory,we know that at max height, ...
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1 answer
59 views

Does a helicopter fly because air is forced downwards, or because each rotor acts as an aerofoil to generate lift? [duplicate]

The answer may be a combination of the two. Does a helicopter fly because air is caught by the rotor and thrown downwards, which causes an equal reaction in the opposite direction and 'throws' the ...
1 vote
2 answers
222 views

Why is accelerating more air slower more efficient than less air faster?

According to this answer on Aviation Stack Exchange, when propelling an airplane it is more efficient to accelerate a bigger amount of air a little than to accelerate a small amount of air a lot. Why ...
20 votes
7 answers
6k views

Why aren't helicopter blades tapered?

From my understanding helicopter blades work similar to a planes wings, ie the air going over is faster due to the shape. So my question is why then are the blades rectangular? ie they are the same ...
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0 answers
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Lift generated by airfoil and why does a flow with a positive angle of attack around a flat plate curve upwards instead of downwards?

I've recently been reading about what really causes lift on an airfoil and the article linked mentions that even a symmetric airfoil or even a flat plate generates lift as long as the angle of attack ...
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2 answers
63 views

Do airfoils need narrowing tails to create a forward force?

All airfoils I have seen become narrow towards the trailing edge. Is it still possible to create a forward vector force if the shape becomes wider again after a narrow middle section? I read that the ...
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0 answers
71 views

Calculate wind speed on aircraft given measurements of speed and heading

I have X amount of speed measurements of an aircraft, each measurement includes a heading and a forward ground speed. What I want to do is to calculate the wind speed affecting the craft. For example: ...
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3 answers
1k views

How much power can support an object to float in the air near the surface of the earth?

If we want to float an object of 1KG in the air near the surface of our earth (the object can move slowly but shouldn't move very fast like a flying plane), at least how much power do we consume? I ...

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