Questions tagged [aircraft]
Aircraft are man-made vehicles intended to operate while flying through Earth's atmosphere.
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Why are the vectors for the pressure above the airfoil bigger when pressure is actually lower?
This image displays "Pressure vectors and flow over cambered section". As far as I understood fluid dynamics, the static pressure is lower in areas where the fluid flows at a higher speed. ...
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Energy balance in fixed wing flight, action/reaction
When an airplane is in flight the engine of the plane overcomes drag until the plane is moving forward fast enough to balance drag. In a stable configuration the air moving over the wings creates lift ...
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The suction and thrust of an aircraft engine
Does only the air sucked in (not the air that is ejected at the back of the engine) by an airliner engine (turbofan engine) causes a thrust forward or in other words pull the engine forward? and why ?
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What is the main role of the Angle of Attack of an airplane, as in mainstream explanation of lift? [duplicate]
The question is conceptual and simple, it needs no more information to answer it. And I wish not to influence the answerer.
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What is the useful limit for ground effect on an object? [closed]
What the maximum size an object can benefit from ground effect?
Also known as riding a cushion of air created from flying close to the ground, some birds can use this effect to fly with less energy ...
user265090
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Sonic boom mitigation by leading low pressure via intake?
As a thought experiment to try to illustrate my question below:
If a fan was moving forward at the speed of sound but was rotating such that the low pressure created by the fan's rotation was equal to ...
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Aircraft turn displacement from non-linear turn rate (instantaneous roll rate)
I've been trying to figure out an aircraft kinematics problem to estimate the x and y offset relative to current position after completing a turn. The turn is a specific change in heading, finishing ...
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Convert BLDC motor thrust in grams ($\rm g$) to Newton ($\rm N$)
I am making a quadcopter with takeoff weight equal to 2 Kg. Using thrust to weight ratio of 3:1 the required thrust per motor is 1500g. (No experimental thrust has been obtained for thrust.)
Now I am ...
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Battery efficiency [closed]
I have 4000 mah 4 cell and a
5000 mah 3 cell
Which battery is more efficient.
Higher mah or more number of cell.
I am selecting batteries for rc plane
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Calculating kwh required to get an aircraft to 1000' based on climb rate
I'll start with the question and then provide context: to get an aircraft to 1000', does a steeper climb angle consume more energy? Assume the flying speed and angle of attack stay constant. This ...
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Origin of the thrust force in jet engine
I am reading a lot about the jet engine operation and I meet mostly explenation that the thrust is generated thanks to the exhaust nozzle that "accelerates" the air. However the nozzle ...
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Which direction will a truncated cone be pushed by airflow?
Consider the shape below, with the bottom and top faces being holes.
Imagine we hold the shape in place and blow a wind into the big hole.
The air will exit the small end at a higher velocity due to ...
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Does general relativity predict different forces on aircraft than Newtonian mechanics?
When taught how airplanes fly, we are probably always given the Newtonian mechanism: that four forces act on an airplane; lift and weight on the vertical axis, and thrust and drag on the horizontal ...
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Relative efficiency of airplanes and helicopters, why is this argument wrong?
I'm trying to better understand why helicopters are less fuel efficient per unit distance than airplanes. One argument I keep seeing in other questions on the topic is that helicopters actively ...
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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 ...
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