How does the aircraft take off nd land? explain in simple language...pls.?

Question

I suppose to explain a person who have no idea of Aero dynamic, in that case hw do we explain?...and if you ahve to explain in aero dynamic theory then, how it will be ..like how do the crew make changes and why for a take off? and how the speed and whight much to land in a fixed piont....things like this.

Answer 1

Without using aerodynamics, and greatly simplifying...
The shape of the wing is such that, when the air flows over and under it, it creates a lift (a vertical "push" upward), that increases with the speed. The faster the plane goes, the higher the lift.
The angle of the wing, as well, contributes to the lift: the higher is the front of the wing in relation to the back of the wing, the higher the lift again. This is called the angle of attack of the wing.
On take off, the plane accelerates at full engine power, the lift increases until the total lift is equal to the plane weight. At that time, the pilot pulls the "joystick" to increase the angle of attack (nose up): the aircraft leaves the ground. This is called "Rotating".
During the climb, engine power is left at full, until reaching the desired altitude.
On landing, the plane slows down, and by careful control of the air speed (engine power) and the angle of attack (joystick), the weight is slightly bigger than the lift, and the plane goes down.
At touch down (called "the Flare"), the pilot pulls the stick backward to lift the nose and, at the same time, cut all engine power: these two actions level the plane to the horizontal with a bit of nose up, the lack of power "drops" the plane to the ground, main carriage first. The falling speed become too slow to get any more lift, and the nose gently falls down to the runway.

Answer 2

My article explains how the air plain fly. You must under stand this first, even though, the pain has to take of first.
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How can plain float on air?

By

minootoo


It is the geometry of the plain, and the propeller or jet engine or rocket engine.

To make plain fly, air under the plain must support the plain, the pressure under the wing of the plain is more then pressure over the wing.

The propeller drives the air over and under the wing, by design air has to travel more distance over the wing then under the wing. If air coming out at pressure P and going over the wing is say 2p, then neglecting other losses P=2p, as the air from prop, touches the front wing tips. Say half travel over and half travels under.

The component that goes over the top of the wing will be at pressure p1, and other component will be p2, by design you will have p1
The same displacement of air sucks the plain forward.
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Take off:
By

minootoo


Most plains have certain speed requirement to take off.

Most plains travel on the ground at and angel, nose high, tail down. This is call attitude.

All plains have steering like car, radar like boat but upside down and mounted on the top of the plain on tail end, flaps like bird (most new fix wing plain do not have flaps, some have very small)

Pilot steer the plain by hand, it is a turned around bicycle handle like device. This is use full only till the traction is available, plain, large once loose their steering around approximately 85 knots, smaller once sooner and extra large once slightly later. This is then an indication that the plain is getting to the point where it will be able to take off if the speed is increase, attitude is changed and flaps are adjusted. Since the runways are straight the plain does not need steering as a rule if there is no cross wind, but the runways are laid so that there is cross wind. Now plain is steered by foot paddles that move the radar.

If you look at the run way they have markings on them, they are the markings for the pilots to do certain thing and not to do certain thing.

Pilot takes the plain out of the terminal to taxis way to take off strip. On command from the control tower, the pilot, start to roll the plane and in most case makes it almost parallel to the runway (list air resistance so goes fast), he/she makes the take off run, at certain speed the plan gets slightly lifted, now pilot adjust flaps and the attitude, the plain looses contact with the ground and is in the air. The plain is given more power to gain altitude and clear the air port traffic and the town high structure and reaches crushing height ordered by control tower. Pilot changes the attitude to crushing attitude (brings the nose down a little) and puts the plain on auto pilot.

Note: All take off and landings are done against the wind or against the wind components. This is because if wind become less or drops completely the plain will gain speed and fly, other wise it can loose the speed and crash.
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Landing a plain

By
Minootoo

All normal landings are execute by flying the plane to the right side of the runway (this give chance to the pilot to examine the run way and slow down to slightly above the stalling speed, the plain s taken pass the runway and turned around, put on the glide angle for landing (about 3 degrees), it is taken pass the end of the runway turned towards the run way and centered on it, reverse procedure is followed and the plane is brought down, when the plain is between the certain two markings, power is reduce and the plane sits down gently on the run way, now the nose is dropped and the power is almost all but cut, plain rolls on the runway (exception jet plains have reverse thrusters and they are deployed at this time to reduce the speed of the plain on the ground in that case the full power is applied so reverse thruster would work properly).

Answer 3

The plane flies in much the same way as a water skier stands up on the water (at high speed) or drops back in (at low speed). Moving fast enough through the air the plane can move up or down by altering the angle of its wings. Since air is much less dense than water the plane's mimimum speed just to lift off, generally needs to be much higher than the water skier's.

Bramble

Answer 4

Aircrafts take off and land in a similar fashion like when you stick your hand out the car window at an angle. The wind blowing onto the underside of your hand causes pressure, pushing the hand up. Aircraft have two appendages like your hand on each side, the wind pushes on them the same way as it does on you hand, but it only works when the wind is moving relative to your hand, or the airplane wings.

If you twist your hand in the wind to one side a little bit, the pressure is uneven, causing the wind to push your hand off to the side. Pilots manourvering a aircraft will do the same thing, shiftinf parts of the wings at an angle in order to change the pressure on them, pushing them off into a diffrent direction.

The faster the wind or the aircraft is moving relative to each other, the greater to lifting force on the aircraft and your hand.
Tipping your hand forwards creates a force downwards, tipping it up creates a lifting force. its the same with aircraft.

Answer 5

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Answer 6

Ok, in simple language the plane take off the ground and then gets elevated. After it has completed the trip it lands on a safe place called the airport.
-There!

Answer 7

take a paper blow air under it you see flying the fast blowing air under paper creates lift the same phenomenon applies to flight

Answer 8

i still dont understand how a plane can stay in the air and im a freshmen in college

Answer 9

PROPELLER CREATE THE VACUUM, THEN THE AIRCRAFT MOVED IN THE CREATED VACUUM DIRECTIONS.
BY CONTROLLING AND ANGLING THE PROPELLER, THE AIR CRAFT TAKE OFF AND LANDING.

Answer 10

With the help of the joystick.