天津机场因神秘空中飞行物干扰而大面积延误航班的事件引起了广泛关注。对于这起事件，官方透露的信息非常有限，网上的目击报告也真假难辨。目前还没有一种理论能完全解释这个事件。
让我们先大致回顾一下事情的经过。在中秋节期间，天津机场上空出现多个发光物体，甚至侵入到跑道上空。这导致飞机无法起飞，准备降落的飞机也只能选择备降其他机场，造成了大面积的航班延误。
最初的解释是有人在机场禁飞区非法放飞无人机。但不久之后，世界上最大的无人机厂商大疆科技出面表示，他们的产品都配备了电子围栏系统。这意味着，当无人机判定自身位于机场等重要部门附近时，是无法起飞的。不过，这种说法也并不能百分之百地撇清关系，毕竟电子围栏是一种软件措施，在技术能力很强的用户手中，不存在破解的可能性。
更令人困惑的是，这些神秘的飞行器又再次出现在机场上空，干扰航班起降，这说明这很可能是有人故意为之。而且在事发后的几天里，相关部门并没有抓到肇事者。如果是使用普通的经过破解改装的大疆无人机的话，要抓住操控者其实是很容易的事情。
天津是中国的四大直辖市之一，天津机场也是非常关键的设施。为了保障飞行安全，机场肯定配备了完备的反无人机系统。我在网上就看到过有专门针对大疆这类商用无人机的反无人机干扰器，它们甚至能够定位无人机信号发出的位置，这样很容易顺藤摸瓜找到操控无人机的飞手。既然还能让这类事情再次发生，说明第一次并没有抓到肇事者。这进一步说明这些干扰飞行的行为是有意为之，而且所使用的器材也不是普通的航拍无人机，这就超出了我们的想象力。
这起事件让管理部门相当难堪。从近几年的情况来看，对于这些让相关官员脸上无光的事情，一般都会控制舆论，缩小影响，最后不了了之，所以也就给大家留下了很大的想象空间。关于这件事情的原因，有以下三种解释：
第一种解释是最天马行空、最不靠谱的，也是大家最喜闻乐见的解释，就是这些发光的飞行物体就是UFO。在一般情况下，UFO的报告都可以用科学现象来解释。但即使是美国官方如此公开的关于UFO的报告当中，也有一些不能解释的现象，似乎说明UFO的存在并不能完全被否认。其中最令人震惊的是，美国政府发布的报告中提到，UFO曾经出现在美军基地的上空，且这些UFO可以使基地中的核武器处于无法使用的状态。类似的事件也可能在其他核大国身上发生过。这些"外星人"似乎非常关注地球人，生怕他们因为一时的疏忽引发毁灭地球的核战争。也许这些UFO就是来自未来的人类，像《终结者》电影里所描绘的一样，是为了阻止核战争的发生，确保时间线朝着保护人类的方向发展。天津附近近年就有正在新建的核电站工程，这也有可能是UFO关注这一地区的原因之一。
第二种说法是这些不明飞行物实际上是美军的军用飞行器。美军这样做是为了炫耀自己的实力。这种事情在历史上美军是做过的。1994年，当时中国奉行经济建设为中心，大量资源投入到经济建设当中，军事能力的发展相对滞后，同时台海局势又相对紧张。美军为了进行威慑，曾经制造过一起空前的事件：派出一架电子战飞机在中国临海飞行，干扰沿海防空雷达的运作，使雷达发出错误报警，在显示屏上显示出有上百架飞机编队飞行的假象。中国这边随即启用军用飞机进行拦截，结果并没有发现所谓的机群，只有一架小小的电子战飞机。
那么，此次天津机场事件是否也是类似的情况呢？从技术角度上来说，这种可能性几乎不存在。因为这一次的飞行器展现出来的是具有悬停功能的特性，而固定翼飞机的航程一般都比较远。即使最近的美军基地位于日本和韩国，距离天津也有几百公里，应该超过了这种小型悬停飞行器的航程范围。而且这一次是干扰民用设施，军事威慑的意义并不大。
第三种解释可能更加接近真相，但由于信息有限，目前还无法确定。无论如何，这起事件确实引发了人们对机场安全和不明飞行物的广泛讨论和思考。
A large area of delayed flights at Tianjin Airport caused by mysterious flying objects has attracted wide attention. Official information about the incident has been limited, and online reports of sightings have been hard to discern. There is no single theory that fully explains what happened.
Let's start by recap what happened. During the Mid-Autumn Festival, a number of luminous objects appeared over Tianjin Airport and even invaded the runway. This prevented planes from taking off, and those trying to land had to divert to other airports, causing widespread flight delays.
The initial explanation was that someone was illegally flying a drone in a restricted area of the airport. But soon after, DJI Technology, the world's largest drone manufacturer, came forward to say that their products are equipped with electronic fence systems. This means that a drone cannot take off when it determines it is near an important department, such as an airport. However, this argument is not 100% clear, after all, the electronic fence is a software measure, in the hands of users with strong technical ability, there is no possibility of cracking.
What is even more confusing is that these mysterious aircraft have once again appeared over the airport, interfering with the take-off and landing of flights, which indicates that this is likely to be deliberate. And in the days after the incident, the relevant authorities did not catch the perpetrators. If you use an ordinary DJI drone that has been cracked and modified, it is actually very easy to catch the operator.
Tianjin is one of the four major municipalities in China, and the Tianjin airport is also a key facility. In order to ensure the safety of the flight, the airport must be equipped with a comprehensive anti-drone system. I have seen on the Internet that there are anti-drone jammers specifically for commercial drones like DJI, and they can even locate the location of the drone signal, so it is easy to trace the pilot who controls the drone. If something like this can happen again, it means the perpetrator wasn't caught the first time. This further suggests that these actions to interfere with flight are intentional, and the equipment used is not ordinary aerial photography drones, which is beyond our imagination.
The incident was a major embarrassment to management. Judging from the situation in recent years, for these things that let the relevant officials face no light, they will generally control public opinion, narrow the impact, and finally fail to solve, so it leaves a lot of room for imagination. There are three possible explanations for this:
The first explanation, the most fanciful, the least plausible, and the most popular, is that these glowing flying objects are Ufos. In general, UFO reports can be explained by scientific phenomena. However, even in such a public report on Ufos by the United States, there are some unexplained phenomena, which seem to indicate that the existence of Ufos cannot be completely denied. One of the most shocking is that the report released by the US government mentions that Ufos have appeared in the skies above the US military base, and these Ufos can render the nuclear weapons in the base inoperable. Similar events may have happened to other nuclear powers. These "aliens" seem to be very concerned about the Earth people, fearing that their momentary negligence will lead to the destruction of the nuclear war. Perhaps these Ufos are humans from the future, as depicted in the Terminator movies, to prevent nuclear war and ensure that the timeline moves in the direction of protecting humanity. There are new nuclear power plant projects being built near Tianjin in recent years, which may also be one of the reasons for UFO attention in this area.
The second theory is that these Ufos are actually U.S. military aircraft. The US military is doing this to show off its strength. This kind of thing has been done by the US military in history. In 1994, when China pursued economic construction as the center, a lot of resources were invested in economic construction, the development of military capabilities was relatively lagging behind, and the situation across the Taiwan Strait was relatively tense. In order to deter, the US military has created an unprecedented incident: sending an electronic warfare aircraft to fly over the sea of China, interfering with the operation of coastal air defense radar, causing the radar to send a false alarm, and showing the illusion of hundreds of aircraft flying in formation on the screen. The Chinese side immediately used military aircraft to intercept, and the result did not find the so-called fleet, only a small electronic warfare aircraft.
So, is the Tianjin airport incident a similar situation? From a technical point of view, this possibility is almost impossible. Because this time the aircraft shows the characteristics of the hover function, and the range of fixed-wing aircraft is generally relatively long. Even the nearest U.S. bases in Japan and South Korea are hundreds of kilometers from Tianjin, which should be beyond the range of such small hovering aircraft. And this time it is interfering with civilian facilities, and military deterrence does not mean much.
The third explanation may be closer to the truth, but it is impossible to determine at this time due to limited information. In any case, the incident did spark a wide discussion and reflection on airport security and Ufos.
