这原本是Airbus推出的一个飞行汽车的概念。后来在今年的日内瓦车展上大概是Airbus觉得得拉个车企下水，于是忽悠Audi一起干。Audi的设计师给这个概念重新做了一下造型，联名推出了这款飞行汽车。

This was originally the concept of a flying car launched by Airbus. Later in this year's Geneva auto show, probably Airbus felt that he had to pull a car into the water, so he fickled Audi together. Audi's designer remade the concept and launched the flying car jointly.

就在几天之前，德国官方通过了这个项目的测试计划。看看什么时候能真的看到这玩意儿飞起来。

Just a few days ago, the German government passed the test plan for this project. See when we can really see this thing fly.

这个概念的主要核心是乘客舱，乘客舱放在一个电动底盘上就是一辆车，被一个四旋翼拉起来走就是一直升机。关键在于：不论是飞行状态还是行走状态，双A给的规划都是“Fully Autonomous”。飞机的自动化系统不是什么新鲜事，而Airbus一向有让电脑开飞机的执念，汽车的自动化方面，Audi是主机厂当中专利最多的，这两者合作倒也算合理。

The core of this concept is the passenger compartment. The passenger compartment is placed on an electric chassis, which is a vehicle, pulled by a four rotor and is a helicopter. The key is: whether it is in flight or walking state, double A planning is "Fully Autonomous". Aircraft automation system is not a new thing, and Airbus has always been a computer to open the plane, the automation of the car, the Audi is the most patent in the host factory, and the cooperation between the two is also reasonable.

如果在整个交通基础设施都已经步入SAE L5的大环境下看这个设想，当然就没有任何不合理之处。

If the whole transport infrastructure is under the environment of SAE L5, there is no unreasonable point.

空管：1000米以下非机场周边空域我们就不管了，自动交通控制中心你们看着这群东西就好。

ATC: we do not care about the non airport surrounding airspace below 1000 meters.

乘客：我要去考飞机驾照吗？别闹，SAE L5环境下连汽车驾照都不必要了。

Passenger: are I going to go to the driver's license? Don't bother. Even under the SAE L5 environment, even a driver's license is unnecessary.

旧时代车祸幸存者：会撞上吗？

Old age accident survivor: will it hit?

管制中心：所有飞机/汽车我们都知道在哪儿，具体怎么飞我们说了算。——当然往哪儿走乘客说了算，按什么路线走也是乘客说了算。

Control center: all aircraft / cars we all know where, how we fly has the final say. Of course, where to walk the passenger has the final say, and what route to follow is the passenger has the final say.

这东西如果还是需要人来驾驶，确实，压根就推不动。但是，我一直以来的观点就是SAE L5级别的自动驾驶不仅仅是汽车领域的创新，而是需要包括交通基础设施、城市规划、立法、社会伦理观念等等多个社会领域共同推动方能实现的一个目标。SAE L5的社会可能和今天的社会从社会观念上就有差异(遇到紧急情况不知道怎么飞？Boeing：赶紧关掉AP由资深机长手动开飞机。 Airbus：撒手就好飞机自己会搞定)。

If it still needs people to drive, it will not work. However, my view has been that the SAE L5 level of autopilot is not only an innovation in the automotive field, but a goal that needs to be implemented together in a number of social fields, including transportation infrastructure, urban planning, legislation, social ethics and so on. The society of SAE L5 may be different from today's society from the social concept (in case of emergency, do not know how to fly? Boeing: turn off the AP quickly and manually start the plane by the senior captain. Airbus: a good plane will do it.

如果你压根就觉得SAE L5就是一扯淡玩意儿永远都不可能实现，自然就不用对飞行汽车抱什么希望。但是就我个人观点而言，我并不觉得SAE L5是一个不可能实现的目标。它的技术路线图已经很清晰了。困难的地方在社会观念的转变并不是一代两代人能改变的。大概只有相信机器又无法100%相信机器的我们这代人进小盒子挺长时间之后，孙子辈和曾孙子辈才会坐着飞行汽车高来高去吧。

If you feel that SAE L5 is a nonsense, you can never achieve it. Naturally, you don't need to hope for a flying car. But from my personal point of view, I do not think SAE L5 is an impossible goal. Its technical roadmap is clear. The transformation of social attitudes in difficult areas is not something that can be changed by one generation or two generations. Maybe the Sun Tzu and the Zeng grandson will go to the top of a flying car after a long time when the machine is believed to have been unable to believe that the machine is 100%.

首先飞行汽车要离地 有三种方法 1.磁悬浮 2.固定翼升力 2.旋翼升力（涡轮）

First of all, there are three ways to fly away from the ground: 1. maglev 2. fixed wing lift 2. rotor lift (turbo).

磁悬浮不细说，需要专门的路况和相关悬浮技术 以及动力机制

Maglev does not elaborate, requires specialized road conditions and related suspension technology and power mechanism.

固定翼飞机，根据空气动力学（机翼上面弧度大，下面弧度小，速度越大产生的向上的升力就越大），想产生足够的升力使飞机（汽车）离地，就要有足够的速度以及足够大的机翼，以及一定长度的跑道。上面几个数据相辅相成的关系，一个条件没法满足的话，就要其他条件足够强。总的来说就是像飞机多过像汽车。其实固定翼飞机你把它当成飞行汽车我也不反对，毕竟有轮子，可以在地上跑，但是你想开，首先得有个机场。

The fixed wing aircraft, according to the Aerodynamics (the upper arc of the wing, the lower arc below, the greater the upward lift generated by the greater speed), to produce enough lift to make the plane (car) off, have enough speed and large enough wings, and a certain length of the runway. The above data complement each other. If one condition is not satisfied, the other conditions are strong enough. In general, it's like an airplane more like a car. In fact, I don't object to the fixed wing aircraft as a flying car. After all, there are wheels that can run on the ground. But if you want to start, there must be an airport first.

旋翼机分为直升机和多悬疑，直升机结构很成熟，能耗适中，不过结构复杂，体积庞大，驾驶难度大。多悬疑在无人机领域发展的很快，比较适合用电能，但是能耗不如直升机，更不如固定翼。以目前的锂电池的能量密度，续航时间基本不会超过两小时。（旋翼机的浮空和前进动力皆由螺旋桨提供，而固定翼的螺旋桨只负责前进动力，有速度就有升力。所以固定翼能耗低很多）

The rotorcraft is divided into helicopters and suspense. The structure of the helicopter is very mature and its energy consumption is moderate, but the structure is complex, the volume is huge, and the driving is very difficult. Suspense has developed rapidly in the field of UAVs, which is more suitable for power consumption, but the energy consumption is not as good as that of helicopters, rather than fixed wing. With the current energy density of lithium batteries, the endurance time will not exceed two hours. The rotor and the propulsion power of the rotorcraft are all provided by the propeller, while the fixed wing propeller is only responsible for the propulsion power, and there is lift at the speed. So the energy consumption of the fixed wing is much lower.

当然也有一种飞机叫做倾旋翼，结合了旋翼机和固定翼的优点，可以变形，不过也有他自己的问题。

Of course, there is also a kind of aircraft called tilting rotor, which combines the advantages of rotorcraft and fixed wing, but it has its own problems.

而汽车在地上跑，就少了浮空升力这个大问题，他的动力也只需要让轮子转就行了。飞起来的话，轮子离地，还得有螺旋桨或涡轮往后吹才能提供前进动力，想刹车还得往前吹，想拐弯还得往旁边吹，其效果远不如轮胎与地面之间的摩擦力那么简单粗暴。

When the car runs on the ground, it will lose the big problem of floating lift, and his power only needs to turn the wheel. When it flies, the wheel is away from the ground, and the propeller or turbine has to go back to provide the driving force. The brakes still have to go forward, and want to turn to the side. The effect is not as simple as the friction between the tires and the ground.

（文编译飞行汽车feiauto）www.feiauto.com

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