What are the characteristics of cold wave weather? What is the impact on civil aviation flight safety?

The weather phenomenon that has the greatest influence on aircraft operation in winter is rain and snow. The main reason is that the aircraft will encounter icing phenomenon during the operation before and after rain and snow in winter in the north. When it comes to ice accumulation, people will definitely think of freezing rain. In fact, alumni are just a final result. "Founder" is "supercooled water drop". One of the characteristics of supercooled water droplets is instability. Its temperature has reached zero, but it hasn't frozen yet. As long as you give a little interference or vibration, it will freeze quickly. When the plane flies at high altitude, it not only encounters direct cooling water droplets, but also has a mechanism that needs special attention: ice accumulation. In other words, high-speed aircraft may have a power increase caused by friction. Therefore, when the gas is heated by friction, solid ice crystals can easily become liquid and freeze again in the gas, causing serious safety hazards.

The influence of weather phenomena on flight safety can be divided into several stages. One is about the plane itself, one is a drawing, and three are pilots. First of all, when encountering freezing rain, the aircraft fuselage will inevitably accumulate ice, which will change the dynamic performance of the aircraft. The second is the impact on the road surface. After the rain and snow freeze, the runway is easy to freeze, which affects the normal landing of the plane, such as the plane's road surface freezing and leaving the runway. Third, the impact on the pilot himself, such as rain and snow, weather, decreased vision or windproof ice accumulation, makes the pilot unable to see the descending signal light clearly and also affects the normal landing. If your plane plans to attack the air in a snowstorm, hurricane or even rainstorm, you can doubt whether your airline and the pilot on the plane are ready.

Fortunately, on most commercial flights, many people track and plan the weather, which is a decision to draw other routes or postpone flights. The following are the ways for airlines and pilots to deal with extreme weather. The weather forecast is the key factor for the pilot to check before flying, and the crew will constantly update the weather information throughout the flight. There are all kinds of weather to consider. Why does fog affect airplanes? How can snow cause problems on the runway? Will the gale affect my plane? Ground crew is also important for safe flight.

The most terrible situation in flight is snow and mud. Because it affects the take-off and landing, it affects the flight mode of the aircraft. In cockpit secrets, Patrick Smith, a pilot and blogger, explained that even a quarter-inch thick ice on an airplane would destroy "the beautifully carved outline of the wing, the surrounding airflow and the rising/falling height". Therefore, the plane will be cleaned very carefully before flying. Because even the smallest amount of ice will affect the effectiveness of wings.