Can a thunderbolt plane take off?

Yes.

First of all, we need to make it clear: there are no lightning rods on airplanes. Lightning rods are used on ground buildings. The principle is to pass the current generated by lightning strikes in the air through the air terminal, down conductor and ground. The body is led to the earth, just like the "ground wire" concept of the three-point plug, thereby avoiding lightning strikes on the ground in the city.

At the same time, the external structure of the aircraft is made of conductive materials. If it encounters a lightning strike, the aircraft will be a short-circuit path. Although it will not directly harm the people inside the aircraft, it is likely to damage the aircraft and injure the aircraft. Electronic equipment and structures have an impact on safety.

Since the aircraft cannot be grounded during flight, what the aircraft needs to do is protect against lightning, not lightning protection.

Specifically, before each flight, pilots must understand the weather conditions on each section of the route and choose appropriate flyaround routes to avoid direct contact with strong lightning to the greatest extent; when flying in the air , pilots will also use weather radar to observe the weather conditions on the route. In short, when facing thunder and lightning weather, the countermeasure is one word - hide. If the plane hasn't taken off yet, of course you don't take the risk. As for the arriving flight, you will usually choose to make an alternate landing, or that word - hide.

However, outside of thunder and lightning weather, when an aircraft flies in the clouds, it will also generate electric charges due to friction with the air and clouds. When the electric charge accumulation reaches a certain value, a lightning strike may also occur. At this time, a device is required. The "static discharger" at the tip of the aircraft's main wing or tail is generally called a discharge brush. The principle is that when the current generated by lightning passes through the aircraft, or the aircraft is charged with static electricity due to air friction, the current will instantly pass through the discharge The brush is released outside the fuselage, so that the process of high-energy accumulation and release of electrical energy will not be formed under the action of the conductor effect - it is worth noting that it is safe for passengers to sit in the cabin, because the cabin is connected to the fuselage shell is insulated.

The discharge brush is also a "protective umbrella" for the instrument electronic equipment on the aircraft. By releasing the static electricity flowing on the fuselage at any time, it can prevent the aircraft's communication and navigation from being interfered by electromagnetic fields and affecting flight safety. Generally, there are more than 10 discharge brushes on modern civil aviation aircraft, but there are also many small aircraft that do not have them. Because these small aircraft are small in size, the static electricity on the fuselage is very small, and it is released directly from the fuselage. In addition, aircraft lightning protection is also reflected in the reinforcement of important equipment of the aircraft, such as the reinforcement and insulation of the fuel tank casing, and the position of the avionics equipment is also accurately evaluated and calculated, with the purpose of reducing the damage caused even if the aircraft is struck by lightning. Nor will it be fatal.

But then again, the discharge capacity of the discharge brush is limited. If the aircraft is hit by high-energy lightning, and the discharge brush cannot release this energy instantly, resistance will occur. effect, it is very likely that the body will be penetrated, or even cause a serious accident. Therefore, you must be cautious when flying. The most important thing is to understand every weather condition and avoid dangers in time.