Is it true that the direction of the headwind is more suitable for flying?

From a rigorous scientific point of view, wind is the movement of air relative to the ground. When the plane is in flight, because it has left the ground, the concept of "wind" actually no longer exists, what exists is the movement of the air relative to the aircraft, the air flow. If we are talking about the concept of headwinds per se, which only affects the aircraft during the ground run-up preparation for take-off, as well as during landing and landing, it does not make much sense for objects in the air.

For example, in the case of the engineless glider, which the respondent is more familiar with, understanding and preparing for the direction of the wind and the relative ground speed (wind speed) is very critical for take-off and landing. It is more appropriate to have a stable and moderate headwind during take-off and landing. The aircraft flight uses the relative airspeed, because the headwind can increase the relative airspeed, can reduce the take-off and landing, is conducive to flight safety.

But in the cruising phase, it's better to have a tailwind. Our flight time depends on the ground speed, if the plane speed is constant, we can increase the ground speed when the wind is downwind, which can allow us to reach the destination faster. Therefore, it can be seen that some pilots want to change the flight altitude layer in connection with the control in order to achieve a more suitable altitude level during cruising (which is also related to the reduction of aircraft weight and the reduction of lift requirements after fuel consumption).

In the northern hemisphere, there is a westerly wind belt, Beijing to New York can save one to two hours, saving time, fuel, and cost is considerable, so the cruise is still downwind. Also: Why do you need to stabilize headwinds during take-off and landing?

Because if the change is too fast, wind shear and downdrafts will make the aircraft difficult to control, and accidents are more likely to occur. The take-off of the glider requires external traction, so the best direction for take-off is the headwind situation mentioned in the title. In this way, the wings gain more lift than in the case of stationary winds, and can achieve higher altitudes for the same traction distance.

The same is true for landing, and it is better to land against the wind, as you can avoid sliding too far after landing under the resistance of the wind. <>

At 50 meters, the relative air speed of the glider is 60 knots (air speed), where the wind speed is 10 knots, and then at 70 meters, suddenly the wind speed becomes 20 knots due to the wind speed ladder, so the wind speed becomes 70 knotsIf this speed exceeds the carrying capacity of the tow line, there is a possibility that the tow line will fall off and the pilot will need to make an emergency landing. Similarly, on landing, a sudden wind speed ladder can cause the aircraft to stall.

Therefore, before takeoff, we will determine a safe landing speed according to the ground wind speed (also said air speed here), the stronger the wind, the greater the landing speed. Because the glider does not have an engine, it only uses the conversion of potential energy and kinetic energy. If you have one or the other, there will be no problem.

There is no potential energy when landing, and if you lose kinetic energy due to air currents, it will be very dangerous. Therefore, the high-speed landing speed can effectively prevent sudden air currents or stairs that allow the glider to plunge headlong into the airport when landing...

The reason for this is that it is a reference to the reason for kites, but it is not like this. Headwind may be more stable, but it consumes a lot of energy, which is not conducive to flying, there are many long-distance bird flights in the world that rely on this downwind instead of headwind, it can be said that downwind is the mainstream of flight, upwind flight is easy to be carried away by the wind or the flight time is shorter, but headwind is conducive to exercising your flying ability, exercise the ability to withstand pressure in adversity.

The aircraft does not need headwinds all the time, and when headwinds are needed, they can shorten the take-off and landing distances when taking off or descending; For long-distance flights, there is a tailwind to see off, and the aircraft can better save fuel and increase speed. It does not necessarily mean that it is necessary to fly for a long time in the high-drag environment of this flow rate hedging, and the aircraft gains lift at high flow speeds, but also obtains extremely high drag, so that it will affect the forward efficiency. At some special moments, in this high-drag, high-lift environment, we can even see fixed-wing aircraft.

is "hovered".

In other words, it is not necessary to go against the wind all the time, and although high wind resistance represents the lift efficiency of the vertical coordinates, it is not friendly to the advance of the horizontal coordinates. What's more, the aircraft has acquired the ability to fly normally, acceleration, when it has a certain speed.

i.e. = fluid effect, they are no longer stationary, even if the plane is flying with the wind, they are still in high velocity.

The speed of the downwind is much higher than the speed of the upwind, the downwind is the wind speed + speed, and the resistance of the upwind is the wind speed + speed When the body of the aircraft (the non-lifting body is mainly the wing) is running in the fluid, because of the inconsistency of its upper and lower shapes, the separated airflow will form different pressure representations in the upper and lower parts, and promote the body to move to the side with low pressure, so that the aircraft also obtains upward lift. Such an airplane can fly, so it is not all due to headwinds, the reasons of the airplane itself are also important factors, and we have to learn to fly in the wind.

I don't think this is true, because according to the laws of physics and nature, only the direction of the downwind is more suitable for flying.

Correct, because with this kind of pressure, there will be the motivation to move forward, but it will exercise your ability and let yourself fly higher and higher.

This statement is very true, as we can see from this case of kite flying, that it is indeed the case.

It should be on the road of sticking to their dreams, not afraid of the eyes of others, bravely persevering, the direction of the headwind is more suitable for flying, it should mean that the more difficult the situation, the more you can spread your wings and fly high, the whole sentence is an inspirational role.

The great Norwegian playwright Ibsen famously said, "What is man's first vocation?" The answer is simple: be yourself. ”

Is the direction of the headwind better for flying? I'm not a bird, so I don't know. But I understand that the direction of the headwind is not suitable for running, especially in high-rise communities, where the wind seems to be able to roll people up directly from the ground, along with the dust on the ground.

The campus of the National People's Congress is far away from my community, which is not very convenient, and I don't like the cramped space in the gym, so I have to retreat to the second place to exercise in the community.

The summer breeze in Beijing is also howling like the north wind in winter, and the big trees beside the road are already green and green, and they are also swaying and rustling in the strong wind. In the process of running around the community, every time I passed between the two buildings, the wind always came more violently, and when a gust of wind passed, I wore short sleeves, and I got goosebumps on my hands.

The wind in Beijing is so fast and windy that it is even worse today, so that when I run through the middle road, it feels like a weight-bearing training with sandbags tied, the pace is extremely difficult, the whirring horn, the sound in my headphones is also drowned out by the cherry blossoms, and the momentum that sweeps everything seems to roll up my whole body and throw it into the air. I can't help but sigh that this is a raging wind!

Blue warning for high winds, be prepared for wind. Because of this weather, the original morning exercise that prepared for an hour was only half an hour and ended hastily, after all, I heard the sound of falling objects nearby, and at this moment, life safety is more important than morning exercise.

Windy weather alone is not suitable for sports, and it is not difficult to be in stormy seas. But people also say that the spine leak search makes the storm more violent. Not all birds are suited to fly against the wind, and not all of them can withstand setbacks.

The petrel flying proudly on the vast sea won my heart, and it was a hero I truly admired. May you and I fly like petrels in the endless headwinds of life.

Headwinds. Pinyin] [ nì fēng ].

Explanation] (name) windward; Wind in the opposite direction of travel to vehicles, ships, etc.: Driving. Near headwind|Windward. Anti downwind.

synonyms Bi lead shouting] against the wind, against the wind.

Antonym radical word] downwind.

Synonyms for headwind1. Headwind. Pinyin] [ dǐng fēng ] Interpretation] Facing the wind head-on, also refers to the wind that is in the opposite direction of travel.

synonyms] windward, headwind.

Antonyms] downwind.

2. Windward. Pinyin regret field] [ yíng fēng ] Explanation] Facing the direction of the wind; With the direction in which the wind blows.

synonyms] headwind, headwind.

Antonyms] leeward, downwind.