How did the plane fly, and what did you think?

When I was a child at home, I always longed to see the traces of airplanes flying in the sky. As for airplanes, I always look at them with curiosity. So, how does a plane in the sky take off?

Glide stage. For an airplane to fly into the sky, it must first have the stages of take-off, taxiing, and sprinting.

1. So how does the plane take advantage of this process to take off? First of all, the process of the aircraft taxiing on the runway and taking off is a straight-line acceleration motion. The plane first taxied on the ground at maximum power.

At the initial stage, the rudders did not work due to the low speed. The pilot controls the direction of the nose wheels to keep the aircraft in a straight line. When the speed reaches 80 kilometers per hour, the pilot steers the aircraft with the steering stick, and then the runway taxiing stage.

Leave the stage. The take-off of our aircraft first goes through the taxiing phase, followed by the take-off phase. At this stage, the ground distance from taxiing to flying more than 35 meters is called the take-off distance.

The shorter the take-off distance, the better.

Second, the distance depends on the thrust of the engine, the performance of the flaps of the high-lift device, the wingas well as altitude and ground temperature. The purpose of a take-off taxiing is to increase the speed of the aircraft until it leaves the ground. The greater the pull or thrust, the greater the remaining pull or thrust, and the faster the aircraft grows.

When taking off, in order to increase speed as quickly as possible, the throttle should be pushed to the maximum position. So as a driver, you have to stock up on the knowledge of these things to a predetermined height. That is, our plane will fly to the range of altitudes that we have previously predetermined.

In this case, there are generally two ways, one is to climb at a fixed angle to reach a predetermined height. The advantage of this is that it saves time, but the engine requires a lot of power and consumes a lot of fuel. The other is ladder climbing.

After the plane reaches a certain altitude, horizontal flight increases speed, and then climbs to a second altitude.

Third, after several stages, it climbs to a predetermined height. Because the lift of the aircraft increases with speed, and the weight of the aircraft is constantly decreasing by fuel consumption, this climb is the most fuel-efficient. For different types of aircraft, its speed requirements, fuselage design, power plant, as well as its fuel requirements are all different.

Aircraft design is a complex job that requires patience and a sense of responsibility.

The take-off of the plane depends on aerodynamics! If the airfield is propelled in the air, it can fly off the road when it reaches a certain speed and other conditions.

The ability of an airplane to fly in the air without falling is first of all the role of the two wings, as well as the efficiency of the aircraft's engines.

1. An airplane can fly by its wings and engines. When the airplane is moving, the air above the wing is fast, and the air under the wing is slow, so that an upward lift is generated, and the plane will fly smoothly into the sky.

2. In addition, the engine in the aircraft is connected to the propeller, and the propeller rotates to drive the airflow, and the aircraft can fly in the sky for a long time.

1. To know the principle of aircraft take-off, we must first know a basic principle in fluid mechanics: flow velocity is inversely proportional to pressure. That is, the faster the air moves, the less pressure the air will be, and vice versa.

We can do a famous simple experiment: take a piece of paper in each hand, hold it at a certain distance in front of your mouth, and blow gently in front of the two pieces of paper, and you will find that the two pieces of paper are not blown open by you, but by you.

Because the air between the two papers flows, the pressure becomes smaller, and the air on the outer side of the two papers does not flow, and the pressure increases relatively, and the paper is "pressed" by the air.

2. The principle of aircraft take-off: the wing structure of the aircraft is covered, and the shape of the upper and lower sides of the wing of the aircraft is different, the upper side should be more convex, and the lower side should be flat. When an airplane taxi, the wings move in the air, which is equivalent to the air flowing along the wings in terms of relative motion.

Since the shape of the upper and lower sides of the wing is different, the air on the upper side of the wing flows more distance than the air on the lower side (the curve is longer than the straight line) in the same amount of time, that is, the air on the upper side of the wing flows faster than the air on the lower side.

According to the principle of hydrodynamics, when the aircraft slides, the air pressure on the upper side of the wing is less than that on the lower side, which causes the aircraft to produce an upward buoyant force. When the plane taxied to a certain speed, this buoyancy reached a force sufficient to make the plane fly. So, the plane went into the sky.

Relying only on the wing curve, relying on the lift provided by Bernoulli's principle, can play a certain role, but secondary, at most, it can meet the cruise lift needs under good conditions, and it is difficult to explain the same speed, the difference between no-load and full-load lift requirements. This interpretation is also very dogmatic.

The main role is the angle of attack of the aircraft, which is defined as the angle between the wing chord and the incoming velocity, similar to the head-up angle in the vernacular, that is, when leaving the ground, the tail wing flips up, the wind resistance makes the nose of the aircraft lift, and the belly and the windward side are formed under the wings. There is also the extension and angle adjustment of the flap (that is, the part of the rear of the wing that can be retracted, which can be observed when you are on an airplane, and plays a great role in deceleration during take-off, turning, and deceleration). For example, the angle of attack of the no-load can be smaller, and the angle of attack of the full load can be larger.