When he saw the staff of the wind tunnel laboratory handing over the data report collected this time to them, Sun Ying and the engineers behind him almost couldn't wait to look through the data. Pen "Fun" Pavilion www.biquge.info

Through various tests on this concept prototype, the drag coefficient of this prototype was calculated to be only 0.198!

What is 0.198?

Generally speaking, the drag coefficient of a normal sedan is between 0.26~0.35, and the SUV model is between 0.3~0.4, as for the F1 car, because it requires a braking time of less than 1.4 seconds from 100km/h to a complete stop, while the braking distance is about 17 meters, and these two values are 2.9 seconds and 65 meters at 200km/h, and from 300km/h to a complete stop, it only takes 4 seconds in total. At such high intensity, the rider decelerates horizontally by nearly 5.4g. This requires the F1 car to be able to generate enough downforce, so its coefficient is much larger than that of ordinary civilian cars, around 0.6~1.3, for which the design of the drag coefficient is also increased in local places, such as front and rear spoilers, etc.

As for the supercars, for the same reason as F1 cars, that is, they need enough downforce, so their drag coefficient is also above 0.3.

As far as Bai Ningyuan knows, the smallest drag coefficient in the world's production cars is the Mercedes-Benz E-class before Bai Ningyuan's rebirth, reaching a terrifying 0.23, as mentioned earlier, to reduce the drag coefficient by 0.01, it is an extremely difficult thing for engineers, so God knows how much effort Mercedes-Benz engineers have made in order to achieve such data, you know, Mercedes-Benz is one of the few car manufacturers in the world that has its own wind tunnel laboratory.

Even Tesla's models, which are also electric cars, have a drag coefficient of only 0.24.

It can be said that the drag coefficient of this prototype is enough to make Sun Ying and others quite satisfied, no, it should be said that it is beyond imagination.

However, this is only a concept prototype, not the final production version, because there will definitely be corresponding adjustments and changes during mass production, and it is expected that by that time, the drag coefficient will probably be similar to that of the models.

After all, both sides have the same concept of making electric vehicles, that is, the pursuit of higher range.

However, at this time, Tesla's models have not yet been established, so for Sun Ying, such a result is enough to make them proud.

After getting this report, Sun Ying almost couldn't wait to send the electronic version of the report to Bai Ningyuan's mailbox.

For them, the wind tunnel was a great success and a sign that their hard work for so long was finally rewarding.

Of course, the current success is just a node in the development process of their new model, and what awaits them in the future is still a long and difficult road, but at least for now, their hearts are satisfied!

Now the success of the wind tunnel test means that the next step is to carry out the formal start of manufacturing of the concept prototype, and after the chassis, motor, battery, battery control system and other electronic equipment in the car are all developed, the final unified test will be carried out, and then all kinds of data will be collected for redesign and adjustment, and then the data indicators and appearance standards of the production car will be determined.

According to the internal time planning of the EMP auto industry, their goal is to make this official debut at the Beijing International Auto Show in May next year, for static display, and then at the Huhai International Auto Show in 07 is the official launch of this concept model, as for the final release of the production model, it is estimated that it will be at least 08 Beijing Auto Show.

Seeing that there is less than half a year to go before the Beijing Auto Show, it can undoubtedly be said to be a very difficult task and challenge for EMP's R&D personnel.

However, fortunately, the exterior design has been verified, and the chassis and battery equipment are not visible parts of the static display, so it is not impossible to complete.

Bai Ningyuan, who was in the capital at this time, had not recovered from the excitement of successfully obtaining Alibaba's equity when he received the report from Sun Ying.

A few days ago, the financing plan of Gaosheng has been officially announced, and Gaosheng officially obtained a 20% stake in Letu Software after paying 18% of Alibaba's equity and 8 million US dollars in cash.

Seeing that the business in his hands is getting bigger and bigger, Bai Ningyuan feels that it is necessary to make some corresponding adjustments, it has just come to the last month of 05, and the annual meeting will be held next month, so there are some adjustment plans, and it is time to make relevant plans at this time.

In addition, during the New Year's Day, he was also going to fly to Qiantang to meet Ma Yun, the chairman of Ali Baba, after all, it involved 18% The share transaction is definitely a big deal for a company, and the change of equity will naturally not hide from other shareholders, so after the end of the acquisition, Bai Ningyuan has already talked to Ma Yun on the phone, and the two sides have had a preliminary contact, but there are many specific things that cannot be understood on the phone, so whether it is Bai Ningyuan or Ma Yun, they feel that it is necessary for the two sides to meet.

Approaching New Year's Day, the campus can also smell a bit of festive atmosphere, for these college students who are still in the ivory tower, their life is carefree and colorful.

On campus, Bai Ningyuan still maintains a decent performance, deliberately behaves very low-key, and has a good relationship with his classmates, as for Sun Tongji, who has a grudge against him, although he is still a little reluctant to him, but he has not made a profit from him once, just like the villain Xiaoqiang who can't be beaten in the anime, he always shouts "I will come back", and then leaves in a gloomy manner.

Luo Yanghui, who originally didn't have a good impression of him, as time passed, although he would not greet him with a smile, he did not have the same resistance as he did at the beginning.

After all, Bai Ningyuan is at a different height, for him, the four years of college life are just a beautiful scenery in life, more to complete the obsession in his previous life, he doesn't need to worry about the future, and he doesn't feel that there is any need to worry about interpersonal relationships, since people don't want to see him, he can't afford to go up with a hot face and a cold ass, and he has wronged himself in vain.

The sky had gradually darkened, and when it was approaching evening, Bai Ning looked at the time from afar, and rode his electric car towards the kindergarten in Qingmu Jiayuan.

A few days ago, Zhang Yanfei went to the United States to attend an internal meeting of the company, Bai Ningyuan needs to have such a person who he trusts and has a sufficient understanding of the United States to act as his "minister", in addition to attending the meeting, there is also a little bit of inspection of the company for Bai Ningyuan, after all, the sky is high and the emperor is far away, and for Bai Ningyuan, according to Zhuo Ke is a part of the core position in his future territory, and there is no room for mistakes.

Zhang Yan is not in the country, and the task of transporting Nuo Nuo to school and taking care of her daily life naturally fell on Bai Ningyuan......

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