Accompanied by Lu Renkai and Wang Zhen, deputy director of Harbin Airlines, Lin Qiangsheng visited the showroom of Hafei Design Institute, and a photo of a large-size bomber on the wall caught Lin Qiangsheng's attention.

"In May 1959, all the technical data of the Tu-16 high-subsonic medium-range bomber arrived, and at the same time, 35 Soviet experts came to China to enter the factory, and the aircraft factory completed the final assembly of the first aircraft in only 67 days under the organization of the factory director Lu Gang." Lin Qiangsheng silently read the notes under the photo.

He turned his head to Lu Renkai and Wang Zhen and asked suspiciously, "Did Hafei ever build a bomber?" ”

Lu Renkai looked at this old photo, nodded with some regret and said: "Yes, it was 1959, and I also participated in the final assembly of Figure 16 at that time. In China, it was later called H-6, and I also participated in the imitation of H-6. ”

Wang Zhen pointed to a photo of a huge factory and said proudly: "At that time, in June 1955, Hafei began to build the largest factory in Asia, the No. 18 assembly workshop, which provided strong conditions for us to imitate large jet aircraft. ”

Lin Qiangsheng looked at another photo, and from this larger photo, it can be seen that the No. 18 workshop is indeed large, and it is enough to build several large jets at the same time.

"Because of the bombardment of Kinmen in 58, Khrushchev may be worried that our China will not be able to withstand the pressure of the Americans, so he sent Tu-16 bombers. Its imitation and manufacturing work settled in our Hafei, and there was Xifei as a backup factory at that time. We are mainly Hafei, supplemented by Xifei, but unfortunately everything has changed later! Wang Zhen said with some loss.

Lu Renkai introduced in more detail than Wang Zhen, he said: "At that time, in China, the imitation work of the H-6 was jointly trial-produced by Hafei and Xifei, of which Xifei was responsible for the trial production of the aircraft's outer wing, vertical tail, flat tail and front and main landing gear. Hafei is responsible for the trial production of the aircraft fuselage, center wing, center outer wing, engine nacelle, system, accessories, static test, final assembly and flight test of the whole aircraft. The H-6 aircraft was the largest tonnage and the most technically complex aircraft manufactured in China at that time, with a total of 240,000 pieces of 50,000 parts, 360,000 pieces of 4,000 standard parts, 1,000 kinds of rivets, and a total of 150 tons of various raw materials. The length of the wire is 25 kilometers and there are 894 accessories for the finished product. At that time, even when the Soviet Union had been producing the Tu-16 for almost a decade, the final assembly time still took at least three months. What they didn't expect was that under the leadership of Director Lu Gang, Hafei completed the final assembly of the aircraft in only 67 days, and even Soviet experts were amazed that we had created a miracle! ”

Lin Qiangsheng saw Lu Renkai talking about Ha Fei's glorious years, and both he and Wang Zhen showed sincere happiness and pride on their faces, and he couldn't bear to interrupt them, just turned his head and stared at the photos on the wall.

"Alas, now Hafei can only develop small planes like the Y-12!" Lu Renkai withdrew his feelings from his remembrance, reached out and wiped the corners of his eyes without a trace, and sighed.

Lin Qiangsheng asked suspiciously: "Why is Hafei's technical strength so weak now?!" ”

Wang Zhen shook his head. "Later, Sino-Soviet relations broke down, and the Aviation Bureau decided to transfer all the imitation work of the H-6 to the Xifei Manufacturing Plant, and Hafei handed over all the technical data and supporting equipment to the Xifei Manufacturing Plant, so Hafei ended its participation in the H-6. Not only that, most of the engineering and technical personnel involved in the imitation have also been transferred to Xifei, and the Air Force Department of Kazakhstan Military Industry has also gone to Northwest University of Technology, and now Hafei has reached the point where there is no successor! After speaking, Wang Zhen hammered his hand painfully.

"What a pity!" Lin Qiangsheng sighed, he lamented that there is no Hafei factory in several domestic aircraft factories that shine in the 21st century. There are very few related reports and biographies, which makes him feel lost in his hometown.

Lu Renkai and the two took Lin Qiangsheng to continue to visit the design institute. In the aircraft fuselage design room, I met a group of aircraft fuselage designers, who were working on the improvement of the Y-11 fuselage.

What Lin Qiangsheng didn't expect was that the discipline of the aircraft design institute at this time was so lax, some people were working, some people were drinking tea or simply chatting together, Lin Qiangsheng and Wang Zhen and Lu Renkai saw this messy scene when the three of them came in.

"Ahem" Lu Renkai coughed vigorously a few times, and he looked at Lin Qiangsheng and Wang Zhen embarrassedly. hurriedly explained: "Now the funds are insufficient, and everyone's enthusiasm is not high!" It can be seen that Lu Renkai is not very good at management work, and in addition, the decade that has just ended has also filled the research unit with this bad atmosphere. The authority of the superior leaders is not great, especially the middle managers, who cannot control the people below.

Wang Zhen glared at Lu Renkai, turned his head and introduced loudly to everyone in the design room: "Everyone, pay attention!" This is Mr. Lin Qiangsheng of Hafei's joint venture. Everyone is welcome! He thought about it for a while, but he didn't remember what position Lin Qiangsheng held in the joint venture company, so he had to call him Mr. instead.

There are more than a dozen designers gathered in the open design room, probably these people are members of the Yun-12 research and development team, some of them are still more respectful, the leaders have stood up and saluted, and some of them have exchanged words and said a few words of nonsense, Lin Qiangsheng actually heard someone say something like "What is this person doing here".

Wang Zhen's face was also a little unbearable at this time, and he said loudly: "This Mr. Lin is an overseas compatriot!" He just ordered one of our Y-12 transport planes, and it was in foreign exchange, 350,000 dollars! Everyone applauded, Mr. Lin traveled thousands of miles to contribute to the motherland's aviation industry, this spirit is worthy of admiration! ”

"$350,000?! Someone spent so much money on our planes! It's still dollars! Everyone was stunned when they heard Wang Zhen's words, and everyone's eyes suddenly focused on Lin Qiangsheng.

Some of the designers immediately gave enthusiastic applause, and from their expressions they were sincerely happy that their planes could be sold for dollars; And some people looked at Lin Qiangsheng as if they were looking at a fool, and they didn't understand why this young overseas compatriot spent so much money to order a plane that they hadn't built yet, this person wasn't stupid, right?

Lin Qiangsheng looked at everyone with a smile, suppressed the applause and said: "Maybe some of you think that it is unrealistic for me to spend hundreds of thousands of dollars to buy an airplane, but what I want to tell you is that your plane is cheap and high-quality in the international market, and $350,000 is not expensive!" As long as you build the aircraft well, your products will definitely be sold in the international market! ”

"Good!" When Deputy Director Wang Zhen heard Lin Qiangsheng's words, he took the lead in applauding. The buyer's words were much more useful than the ones they usually advertised, and after Lin Johnson said this, he saw that everyone in the design room was much more energetic than usual.

Lu Renkai also smiled and nodded, he felt that the Yun-11 improved or Yun-12 under research had an international market, so Mr. Lin ordered one!

"We had already ordered a new plane before we could design it! And it's 350,000 US dollars, which has created so much foreign exchange for the country, which is really good! Some of the designers with lively ideas whispered excitedly.

"Yes, I don't know if there is a reward for earning foreign exchange, this is 350,000 US dollars, how many imported color TVs can be bought!"

"It would be great if you rewarded the import of large color TVs!" Some people immediately began to think of the good things and talked about them happily.

Lin Qiangsheng walked to a table covered with drawings, looked at the fuselage drawings conceived by the designers, and asked the person standing next to the chair with a smile: "Where is the progress of the Yun-12 now?" ”

The young designer excitedly said to Lin Qiangsheng: "We already have a preliminary improvement plan, and now we are calculating the size and structural strength of the fuselage. ”

Lin Qiangsheng saw that there was a large amount of calculation paper on the table, which was densely packed with handwritten calculation formulas. He flipped through it as if reading a book from heaven, Lin Qiangsheng looked around the entire design room, and was surprised to find that there was no computer-aided equipment here, the designers were completely hand-drawn and manually calculated, and the only thing was that some abacus was placed on the table, and Hafei's designers were still using a very primitive way to design the aircraft.

"You didn't use computer-aided drafting to participate in the calculations? It's still using hand drawing and manual calculations, it's too slow! It's no wonder that it takes so long to develop an airplane, and even the calculator can save a lot of time and effort with the help of calculations! Lin Qiangsheng turned his head and said to Lu Renkai and Wang Zhen.

Wang Zhen didn't understand what Lin Qiangsheng said at all, he asked suspiciously, "The computer is too big, right?" We can't afford that big guy! I know that the Computer Research Institute of the National University of Defense Technology is developing a computer, and you are talking about that thing? ”

Lu Renkai suddenly slapped his thigh, and then asked Lin Qiangsheng excitedly: "Computer-aided design?" Is that the one with the monitor that your engineers used in the real room? That's a computer, right? ”

Lin Qiangsheng nodded and said to Lu Renkai: "That's it, this time our engineers brought 4 microcomputers, and they have already used them to redesign the machine tool in the real room, and their participation will greatly speed up our work!" ”

"yes, I didn't think about it at the time! I see a drawing on it, you guys are drawing on a computer?! Lu Renkai was shocked and excited to ask Lin Qiangsheng for confirmation.

Lin Qiangsheng nodded with a smile and said: "Yes, our engineers are indeed using computers to draw drawings, which is much more time-saving and labor-saving than human work drawings!" Not only that, we can also use computer programs to calculate the structural strength of machine tools, the center of gravity and other parameters, as long as the operation program is very convenient and fast, there is no need for a large number of manual calculations, saving time and effort and greatly avoiding the mistakes of manual calculations! ”

Lu Renkai nodded again and again, and said happily: "Yes, yes, yes!" I've read some foreign computer books that introduce this, take me to see it! After speaking, he pulled Lin Qiangsheng and ran downstairs impatiently

"Hey, old Lou? What kind of computer is so strong! Wang Zhen shouted to the two in confusion, shook his head and followed. (To be continued......)