www射-国产免费一级-欧美福利-亚洲成人福利-成人一区在线观看-亚州成人

Global EditionASIA 中文雙語Fran?ais
Opinion
Home / Opinion / Op-Ed Contributors

Flying car is a good idea but hard to realize

By Zhang Zhouxiang | China Daily | Updated: 2017-08-19 09:25
Share
Share - WeChat

Editor's note: Zhejiang Geely Holding Group Co's plan to purchase Terrafugia, a US-based startup company that made the world's first flying car, was recently approved by US government departments. Will flying cars help ease traffic jams in China? Two experts share their views on the issue with China Daily's Zhang Zhouxiang: Excerpts follow:

Not likely to be a hit with consumers

Lin Haiying, a senior researcher in automobiles at Beihang University

The idea of a flying car seems creative. Combining the advantages of planes and cars, a flying car requires much smaller parking space than a plane and is more convenient than a car, especially when it comes to maneuvering traffic jams.

In general, two types of flying cars have been developed. The first is a fixed-wing flying car, with the most typical model being "Transition" of Terrafugia that Geely is purchasing. It is more like a small plane with collapsible wings, which can fly to avoid traffic jams and travel on the road when approaching the destination. It has quite a long flying range, from 500 kilometers to 600 km.

The other is rotor-wing flying car, something like a small helicopter. It has two rotor wings, one on the top and the other at the back, which help it to fly. The wings can be folded on landing and the vehicle can be driven on the road. One such typical model is "Liberty Sport" made by PAL-V in the Netherlands. Compared with Transition, it needs a narrower lane and smaller stretch of road for takeoff and landing, but its flying range is only about 200 km.

The technologies used to design and manufacture flying cars have matured, and their safety can be guaranteed. The problem is that there is no universal technological standard for flying cars. In the United States, one of the few countries where they are legal, flying cars are defined as "small, light airplanes", so they need to meet the technological standards of both cars and airplanes.

But since the motors and structures of cars and airplanes are based and built on different principles, and aerodynamic designing is expensive, the cost of flying cars will be very high. So there is little possibility of flying cars becoming popular among consumers.

Lots of work needed to introduce machines

Zhang Qihuai, a senior lawyer and deputy director of the aviation branch of Beijing Law Society

In 2015, the US Federal Aviation Administration approved Transition, the world's first flying car, as a "small, light airplane" that legally can be driven as well as flown. This is possible in the US because its laws exercise little control over airspace below 3,000 meters.

But in China low-altitude airspace governance is still undergoing reforms, and there is no specific regulation on flying cars. So a lot of legislative work is needed before flying cars can be legally operated in China.

Many questions need to be answered before flying cars can be introduced in China. What kind of driving and flying licenses should the drivers hold? What sort of training they need? Which department should be in charge of them? What kinds of roads can be used by flying cars to take off and land? And should special roads be built or can some of the existing ones be reconstructed for the purpose?

Also, devices to monitor "road" safety and flight routes of flying cars have to be installed before such machines are introduced in the country.

More importantly, Chinese laws forbid car owners from modifying their vehicles without official permission. And since flying cars are different from ordinary cars in design, speed and the nature of their engines and accessories, it will be a big challenge for lawmakers to include them in the legal standards for vehicles.

In one word, a lot of work needs to be done before flying cars can really fly in China.


 

Most Viewed in 24 Hours
Top
BACK TO THE TOP
English
Copyright 1995 - . All rights reserved. The content (including but not limited to text, photo, multimedia information, etc) published in this site belongs to China Daily Information Co (CDIC). Without written authorization from CDIC, such content shall not be republished or used in any form. Note: Browsers with 1024*768 or higher resolution are suggested for this site.
License for publishing multimedia online 0108263

Registration Number: 130349
FOLLOW US
主站蜘蛛池模板: 草草视频在线免费观看 | 九色91| 97在线视频免费观看 | 一区二区三区在线观看视频 | 欧美xxxx性xxxxx高清视频 | 成人一级片在线观看 | 欧美三级免费网站 | 国产精品久久久久a影院 | 免费v片在线观看 | 日韩视频一区二区三区 | 91精品视频在线播放 | 国产精品一区二区久久精品 | 欧美日韩精品一区二区另类 | 午夜宅男在线永远免费观看网 | 欧美手机手机在线视频一区 | 色精品一区二区三区 | 成人爽爽大片在线观看 | 美女张开腿让男人桶的动态图 | 美女毛片免费 | 精品国产高清久久久久久小说 | 欧美俄罗斯一级毛片激情 | 日韩 欧美 中文 亚洲 高清 在线 | 国产一区二区三区视频在线观看 | 国产一区二区三区在线观看影院 | 福利91 | a级毛片毛片免费观看永久 a级毛片毛片免费很很综合 | 亚洲国产天堂久久综合网站 | 国产精品久久国产三级国不卡顿 | 中国欧美一级毛片免费 | 在线中文字幕播放 | 日本九九视频 | 日韩高清一级毛片 | 在线成人播放毛片 | 日韩一级高清 | 一级特黄aaa大片 | 国产在线精品一区二区不卡 | 亚洲欧美激情在线 | 欧美激情免费观看一区 | 欧美午夜精品久久久久免费视 | 男人的天堂高清在线观看 | 91久久国产精品 |