Questions tagged [aircraft]
Aircraft are man-made vehicles intended to operate while flying through Earth's atmosphere.
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Lighting an Electric Bulb with Earth's Magnetic Field
Yesterday, I was solving some problems of Electromagnetic Induction. Suddenly a thought struck my mind.
Earth has its own magnetic Field.If an aircraft of metallic body is flying in the air then ...
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Drag and lift as a function of speed
Assuming turbulent flow, the drag force $F_\mathrm d$ and the lift force $F_\mathrm l$ are usually given in terms of the following equations
$$ F_d\, =\, \tfrac12\, \rho\, u^2\, c_d\, A $$
$$ F_l\, =\...
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Aeronautical Physics induced drag direction
I am a 9th grader doing a science fair project at my local high school. I am doing a science experiment on different plane wings and how the angle of attack affects drag. I need to create a rig to ...
user133209
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Why is the water in a cup not inclined (opposite the cup) when the plane takes a turn?
When a aircraft takes a turn: Why is the water in a cup not inclined (opposite the cup)?
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Turboshaft Turbine Mathematical Model
Are there any simplified mathematical models for how two gas coupled turbines (also called a free power turbine) should interact with one another as the speed of the driving turbine changes.
(i.e.) ...
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Control cable failure and critical flutter speed margin?
I'm a private pilot, and I have some questions to those who have knowledge of the aeroelastic effects and flutter phenomenon. I would like to talk a little about aerodynamic flutter onset speed and ...
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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 ...
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Mechanics of the "airplane" thrown at angle to the horizon
Good day!
I am interested in the solution of the following problem, could you please help me.
Suppose that we have some solid airplane. We throw this airplane at some angle $\theta$ to the horizon ...
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Airflow on wing, simple force analysis
(Look at the picture)
Let's assume there is an horizontal plane impacted by diagonal airflow with components from coming downwards and ahead. If we say that the airflow is fully deviated by the ...
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Buoyant Air Kinetic Energy in a Lagrangian Approach to Derive Airship Equation of Motion
I am currently working on deriving airship equations of motion, in a fluid in motion (unsteady and non-uniform wind). The article cited in most sources is Equations of Motion of a Vehicle in a Moving ...
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Would helium-3 be a better lifting gas than normal helium?
Buoyant force is proportional to the mass of the fluid displaced minus the mass of the volume doing the displacing. Thus the best choices of lifting gas are nothing(vacuum), hydrogen, and then helium ...
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Subsonic flight in saturated steam vs. air
I am wondering whether differences in density, temperature, viscosity, drag coefficient, or lift coefficient between steam and air might affect subsonic flight through these media. Let's assume ...
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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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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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Heat dissipation in space - how do they do that?
Consider a space aircraft. During its propulsion, I believe a lot of heat is transmitted to the aircraft by simple contact with the motor. But in space, there is no air to cool the aircraft. The only ...
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