readx;?readx; Compared with the famous Paris Air Show and Vandenberg Air Show, this year's third Zhuhai & Hainan Air Show is the largest and highest-level professional aviation exhibition in China, but in terms of scale and influence, it is not only far from the Moscow Air Show, but even from the Singapore Air Show This level of air show has some distance, no way, Zhuhai Air Show is too young. Pen, fun, pavilion www.biquge.info pro, Baidu search eye & fast, a large number of novels to read for free.

However, the Republic's huge population base and the rapidly growing demand for aviation aircraft attracted the world's major aviation manufacturing giants to participate in the exhibition and use it to promote their products to the Republic.

In addition, after the cultivation of the first two air shows, the Zhuhai Air Show has been regarded as a good platform for analyzing and evaluating the aviation strength of the Republic and the future development direction of the Zhuhai Air Show.

Hu Changsheng looked at the plane in front of him curiously, no matter how he looked at it, it was a mature product, and couldn't help but ask Lin Zheng: "This is the electric plane you told me last time?" Did you design it yourself? ”

Hu Changsheng still helped Lianchuang Technology to participate in this year's Zhuhai Air Show, but fortunately, Lin Zheng and Hu Changsheng mentioned this matter in June, so they did not delay the current air show held in November, if it was two months late, even if Hu Changsheng, the minister, would be useless to speak.

Although he helped Lin Zheng get the qualification for this exhibition, Hu Changsheng was a little uncertain in his heart: Lin Zheng, this kid, has only made unmanned drones, can he do electric planes?

Coincidentally, he happened to come down to inspect the work in the past few days, and taking advantage of the opportunity to set up the exhibition, Hu Changsheng decided to come and take a look.

"No, this is what we converted with a Cessna 172."

What are you kidding, Lianchuang Technology does not have the slightest design experience in manned aviation aircraft, and rashly builds a manned electric aircraft by itself, which is joking with human life, Lin Zheng will not do this kind of thing.

"Cessna 172? I've heard about this plane. It seems that many foreign aviation schools use this aircraft as a training aircraft," Hu Changsheng nodded, the minister is not a monster who does not eat fireworks in the world, he has really heard of this aircraft. Somewhat curious, he asked, "But I remember that the Cessna 172 seems to be a single-engine aircraft?" ”

In Hu Changsheng's impression, the Cessna 172 is a small plane with a propeller on the nose of the plane, which can only seat 2 people, or 4? But this aircraft is a little different, it has two sets of three-bladed propellers. Placed on the left and right wings of this plane, they look similar to those twin-engine propeller planes, but they obviously have the body of a Cessna 172, which looks very weird.

"No way," Lin Zheng said helplessly: "Our level is not enough, if we want this plane to fly with a load of 160 kilograms, we must provide at least 60kw of power, and now the limit we can do in terms of permanent magnet motors is 40 kg, 30kw, and only 2 electric motors can be used to ensure that the plane leaves the ground." ”

Hu Changsheng opened his mouth and shook his head helplessly: "...... Then there is no way. ”

Although there is not a lot of intersection with the aviation industry. As a leader in charge of the electronics industry, Hu Changsheng still knows a little, that is, the equipment used on the aircraft is as light as possible under the premise of ensuring performance.

But the next moment, Hu Changsheng was shocked by what Lin Zheng said, and raised his eyebrows: "Can you now control the weight of a 30kw motor under 40 kg?" Boy! ”

Perhaps many people do not have a clear concept of the power and weight of the motor, but as a leader in charge of the national electronics industry and a high-tech background, Hu Changsheng clearly knows that the minimum weight of a 30kw power permanent magnet motor is more than 150 kg, and it seems that a research institute has come up with a 20kw permanent magnet motor two years ago. The weight was 80 kg, which was quite admirable to everyone at the time, but now Lianchuang Technology can come up with a 30kw motor with a self-weight of only 40 kg?

Lin Zheng said shyly: "Give us a few more years, and we can increase the power of a motor weighing 20 kg to 40kw." But not yet, there are still many problems that need to be solved. ”

"That's also remarkable," Hu Changsheng knew very well how difficult it was to make an electric motor with a weight of only 40 kilograms and a maximum output of 30kw, and for the first time he began to seriously look at this nondescript electric version of the Cessna 172, and suddenly thought of a question: "If you do this, will Cessna sue you for infringement?" ”

"Why are you suing us for infringement?" Lin Zheng was stunned for a moment when Hu Changsheng asked.

"Technical limitations. The planes sold to us by the Americans and the French are restricted, and we are not allowed to change them casually, and we are not allowed to use them for military purposes......" When he said this, Hu Changsheng's expression and tone seemed to be very calm, but Lin Zheng still heard something unusual in Hu Changsheng's seemingly flat tone.

"After all, this is a small plane that can only take 2 people, Cessna wants 172 to open up the market in the military field, but who can afford it?"

"There's been so much change to this plane, there won't be any problems, right? Your company doesn't have much experience in aircraft design. ”

"This part of us is to ask Guihang Group and Tsinghua University Aviation Power Institute to help us improve, have been accurately calculated, we have been in the United States test flight for more than half a year, although we have not yet obtained the airworthiness certificate, but the test pilot said, the performance of this power system is very good, very stable, there is no problem."

"That's good......" Looking at the nondescript plane in front of him for a long time, Hu Changsheng patted Lin Zheng's shoulder: "Behave well." ”

"Hmm!" Lin Zheng nodded vigorously.

……………………

After taking a turn around the booth of Lianchuang Technology, Hu Changsheng hurried away and sent Hu Changsheng away, Lin Zheng decided to go to each booth to go around.

Lin Zheng is not interested in passenger aircraft, but like the vast majority of men, he has a kind of love for military aircraft from the bottom of his bones, although European and American countries have not sent their own country's main fighters to participate in this air show, but Russia has sent a large team of exhibitors, not only the latest Su-30MK fighters, but also Il-76 transport aircraft, Il-96 large passenger aircraft to participate in the exhibition, and the famous "Swift" flight show team will also do aerobatic performances.

Our country also sent a large number of exhibitors, FBC-1 "Flying Leopard" fighter-bomber, Z-11 helicopter, Z-9G helicopter, K-8 trainer, Y-12 and Y-8 light transport aircraft, MA60 regional airliner, in addition to attending, there are also Long March series carrier rockets, of course, the most important, our country's first manned space test spacecraft Shenzhou...... For a military fan, these are all great things not to be missed.

Although Lianchuang Technology is not an orthodox military enterprise, it has also undertaken a lot of national defense research and development projects, many of which are even supporting the aviation industry, and many people who came to the exhibition are familiar with the AVIC Group 1 and AVIC 2 Group.

When Lin Zheng came back, he was surprised to find that there were a circle of foreigners in his company's booth, and several foreigners were excitedly gesturing with their own people.

Afraid that his own people would suffer, Lin Zheng hurriedly squeezed over: "What's the matter?" ”

Fu Dong was already sweating profusely, and when he heard Lin Zheng's voice, he was immediately overjoyed: "Mr. Lin, you are here...... These are Cessna people who want to know about our exhibited aircraft. ”

"Oh, it turns out that it's still a friend of Cessna Company......" Lin Zheng nodded, and at the same time asked Fu Dong in a low voice, "What's the matter?" ”

"The people from Cessna Company were very interested after seeing our plane," Speaking of this, Fu Dong asked Lin Zheng in a somewhat weak whisper: "Boss, we modified their plane without saying a word to Cessna Company, will they be looking for trouble?" ”

"Of course not," hearing that Fu Dong was worried about this, Lin Zheng suddenly smiled: "Our electric version of the Cessna 172 has been flying in North America for more than half a year, will they Cessna not know?" If you really want to find our trouble, you will find it a long time ago, and it will not be delayed until now. ”

The Cessna 172/182 light propeller aircraft is different from large commercial jets, in the Western world, this light aircraft is more of a recreational toy, the people who buy this light aircraft are basically flight enthusiasts, there is no one who does not modify the aircraft, companies like Cessna not only encourage private individuals to modify the aircraft without affecting the aerodynamic shape of the aircraft, and even provide a lot of original modifications, just like Harley-Davidson Motorcycle Company.

"Yes, look at my brain......" Fu Dong breathed a sigh of relief, slapped his head twice with a smile, and felt a little depressed: Also, such a simple truth, why didn't I understand it?

Dafang stretched out his hand to the two foreigners in front of him, and Lin Zheng said: "I am Lin Zheng, the chairman of Lianchuang Technology, and the two of them are ......."

"Hello Mr. Lin, I'm Alex. Duland, "Obviously the tall foreigner who was the leader, hearing Lin Zheng explain that he was the chairman of Lianchuang Technology, he was immediately a lot more polite, and bowed to Lin Zheng and said, "Mr. Lin, is this plane modified by your company itself?" What about performance? (To be continued.) )