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Lift
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∙ 10y ago
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How aircraft fly?
Aircraft fly based on the principal of lift. Lift is the force that pushes a plane up. A wing is curved, which means the air flowing over the top of the wing is moving slower than the air moving under the wing. This faster moving air pushes up on the wing and the plane, making it fly.
What happens when an airplane takes off?
There are four basic forces acting on the airplane. First is GRAVITY, which pulls the airplane down. The second is THRUST, the power of the plane's engines; this can be the force of the propeller, or the jet engine. The third force is DRAG; as the airplane moves through the air, the air DRAGS the airplane back to slow it down. THRUST counteracts DRAG. The fourth force is LIFT. The shape of the airplane's wing forces the air to travel a little faster over the top of the wing than over the bottom of the wing. The air moving sideways along the surface of the wing causes lower pressure, so the faster air generates lower air pressure on the top of the wing, and higher pressure on the bottom. The higher pressure on the bottom provides LIFT, which pushes the airplane up. So the higher the THRUST, the greater the LIFT, so as the pilot spins up the engines, the plane goes faster and faster (opposing the DRAG) until the LIFT exceeds the force of GRAVITY. And the airplane flies. In landing, the pilot throttles back the engine, decreasing the THRUST, which causes lower LIFT, and GRAVITY pulls the airplane down. It's a delicate balance; we want to keep all these forces in balance until the wheels are on the ground, at which time the pilot cuts the engines and the THRUST, and allows DRAG and GRAVITY to take over.
What is a force which pushes things up?
lift
Who is bernoulli the aviation?
Well, bernoulli the aviation means nothing. Bournoulli's principal states that as a fluid flows faster, its pressure decreases. This is important to aviation, because an airplane wing works by manipulating air to flow faster over the top of it, then under the bottom. That way, the higher pressure underneath the wing pushes up on it. This forces the airplane to essentially sink upwards.
What you is a force from water that pushes up?
capillary action
How is an airplane able to stay in the air even though the airplane is heavier than the air?
While the airplane moves, the air pushes up against the wings. This has to do with the special shape of the wing, and, to a great part, to Bernoulli's principle.
How aircraft fly?
Aircraft fly based on the principal of lift. Lift is the force that pushes a plane up. A wing is curved, which means the air flowing over the top of the wing is moving slower than the air moving under the wing. This faster moving air pushes up on the wing and the plane, making it fly.
What bears the weight of the plane while it is in the sky?
The air. That is the short answer. The air flowing over the top of the wing causes a vacuum so the force of the air under the wing pushes up on the wing creating lift.
How is the airplane flies?
High air pressure builds up under the wings, and low air pressure goes over the wing, and that makes lift. Thrust from engine pushes it forward.
What happens when an airplane takes off?
There are four basic forces acting on the airplane. First is GRAVITY, which pulls the airplane down. The second is THRUST, the power of the plane's engines; this can be the force of the propeller, or the jet engine. The third force is DRAG; as the airplane moves through the air, the air DRAGS the airplane back to slow it down. THRUST counteracts DRAG. The fourth force is LIFT. The shape of the airplane's wing forces the air to travel a little faster over the top of the wing than over the bottom of the wing. The air moving sideways along the surface of the wing causes lower pressure, so the faster air generates lower air pressure on the top of the wing, and higher pressure on the bottom. The higher pressure on the bottom provides LIFT, which pushes the airplane up. So the higher the THRUST, the greater the LIFT, so as the pilot spins up the engines, the plane goes faster and faster (opposing the DRAG) until the LIFT exceeds the force of GRAVITY. And the airplane flies. In landing, the pilot throttles back the engine, decreasing the THRUST, which causes lower LIFT, and GRAVITY pulls the airplane down. It's a delicate balance; we want to keep all these forces in balance until the wheels are on the ground, at which time the pilot cuts the engines and the THRUST, and allows DRAG and GRAVITY to take over.
Why do airplanes stand up?
The quick answer is that the engines on the airplane is design to push air straight backwards this makes the airplane accelerate straight forward. When the airplane wants to lift whe have to get a force that pushes it upwards(or else it would not lift). The upwards force comes from two major sources, by the air pushed down by the wings(which also are pointing upwards and therefor pushes down the air that passes under them) and by the engine that is pointing downwards.
What is a force which pushes things up?
lift
In atmosphere why there is no reaction of any action?
Forces ALWAYS come in pairs - as in "action/reaction". The atmosphere is no exception. For example, if the air pushes an airplane up, then the airplane also pushes the air down.
Who is bernoulli the aviation?
Well, bernoulli the aviation means nothing. Bournoulli's principal states that as a fluid flows faster, its pressure decreases. This is important to aviation, because an airplane wing works by manipulating air to flow faster over the top of it, then under the bottom. That way, the higher pressure underneath the wing pushes up on it. This forces the airplane to essentially sink upwards.
How do airplanes stay in flight?
Planes stay in flight because of bernoulli's principle. When air passes over a airplanes wing. The air that goes on the top of the wing moves faster than the air the goes on the bottom. Thsi auses a low pressure system above the wing and a high pressure system beneath the wing. The high pressure below the wing pushes the airplane up allowing it to fly.
What you is a force from water that pushes up?
capillary action
What is a force from water that pushes up?
capillary action
