Set sail1992

Chapter 549

After the discussion, Zhang Qihang also breathed a sigh of relief, but that being said, AVIC is still under a lot of pressure. He carefully asked Vice President Wu: "Teacher, when will you notify AVIC of this matter?" side?"

"Notification?" Vice President Wu raised his eyebrows and asked, "Why did you notify them?"

Zhang Qihang was stunned for a moment, and quickly asked: "Don't you need to notify?"

Zhang Qihang was under pressure when facing AVIC, but vice president Wu didn't care that AVIC was the green onion, he waved his hand nonchalantly: "What are you going to tell them? It's like we're begging for help, Xiao Zhang Ah, your classmate is good at everything, but you are too timid, what happened to AVIC? They are so awesome, can they still bully our Harbin Institute of Technology students? There is no such reason!"

At this moment, Vice President Wu was full of arrogance!

Of course, Vice President Wu is also qualified to say such things. Harbin Institute of Technology is not just a university. As the top science and engineering college in China, from its establishment to the present, Harbin Institute of Technology has sent hundreds of thousands of high-level talents to the country. These talents are now All walks of life and fields all over the Republic, including the aviation industry where AVIC is located, such an influential existence, has really made up its mind not to give AVIC face, and AVIC can only wait and see.

Of course, the most important thing is the meaning behind Vice President Wu's words: Little guy, don't worry, as a child of our Harbin Institute of Technology, you don't have to worry about those guys from AVIC daring to bully you!
Zhang Qihang immediately smiled: "With your words, I feel relieved."

It was Sergey Izotov who couldn't help asking: "Zhang, your people said before that you were going to develop an ultra-light helicopter. For this project, you even introduced a prototype for reference. Like this?"

"Well, there is such a thing," Zhang Qihang nodded, looking at Sergei Izotov with some doubts: "Mr. Izotov, what do you mean..."

"Can I go and see this plane?"

Sergey Izotov was a little excited, and at the same time looked forward to it.

"This one……"

Zhang Qihang was a little hesitant, and tentatively said: "Mr. Izotov, you have been exhausted from the journey, why don't you take a rest first? Anyway, the plane is sitting there, and it won't fly away by itself..."

Before Zhang Qihang finished speaking, he was interrupted by Sergei Izotov, who waved his hand and said: "I have been resting for several days, and for me, every day now is precious Yes, besides, when I came, everyone gave me a first-class cabin, and I rested very well along the way, and I would like to see our company’s new projects, and discuss the general technical framework with you by the way.”

Now that Sergey Izotov said so, Zhang Qihang thought about it, and agreed: "Okay, if this is the case, then I will inform everyone and let everyone go over."

..............................

"This is the helicopter from the United States?"

Looking at the Robinson R22 in front of him, Sergei Izotov's eyes widened.

Of course, apart from Sergei Izotov, the expressions of the experts and engineers recruited from Miri Design Bureau and Kamov Design Bureau are not any better than Sergei Izotov, everyone They were all shocked by the simplicity of the Robinson R22 in front of them.

The Robinson R22 in front of them was beyond their imagination!

Especially the people of the Kamov Design Bureau, they have always felt that their KA-26 series helicopters are simple enough, and they are embarrassed to say that the KA-26 is their own product when they go out to chat with others, but it is different from the helicopter in front of them. Compared with Robinson R22, people from Kamov Design Bureau even think that their own KA-26 is simply the difference between a 60mm mortar and a "Scud" missile. Well, their own KA-26 is a "Scud".

After expressing his shock, Sergei Izotov asked Zhang Qihang in disbelief: "Zhang, Yang told me before that this plane sold thousands of planes in the United States?"

"It should be close to 1500," Zhang Qihang said, "This Robinson R22 was officially obtained the airworthiness license and production license in 1979. According to the financial report released by Robinson last year, more than 210 aircraft were sold last year alone. Sales have been close to 1500.

In addition, with its decent performance and price advantages, this helicopter has been purchased by the police system in the United States in large quantities, accounting for about a quarter to one-third of the police helicopter market in the United States. Farmers in the United States have installed detachable pesticide spraying devices to use as plant protection helicopters. "

Sergey Izotov and the people from the Miri Design Bureau and the Kamov Design Bureau were speechless: it was such a crude and outrageous thing that it was able to sell nearly 1500? !

This is indeed beyond everyone's imagination.

But in turn, everyone finally understood why Huateng Industrial Group planned to use this helicopter as a reference object to develop its own ultra-light plant protection helicopter: if you don’t refer to the successful aircraft, is it possible to refer to the ka-26?
KA-26可是一架最大起飞重量超过3100公斤的大家伙，而罗宾逊R22的最大起飞重量才只有622公斤，足足是罗宾逊R22的五倍！
"Well, since this is a pretty good aircraft, it's not a bad idea to use it as a reference object." After all, Sergei Izotov took a breath and said, "As an aircraft whose main purpose is to spray pesticides For helicopters that operate in the same way, you do not pursue flight speed and altitude, and even the continuous flight time is only required to be 30 minutes. Since this is the case, what else can you say? Well, what engine are you going to use? The basic How's the performance?"

Zhang Qihang did not hesitate, and said: "Our initial plan is to use the 914 engine of the Austrian ROTAX company, which is a four-cylinder horizontally opposed piston engine used in ultralight aircraft. It adopts a hybrid cooling method of liquid cooling and air cooling. system, with a maximum power of 115 horsepower and a maximum weight of 75.5 kilograms. The most important thing is that this engine has obtained the type airworthiness certification of the European aviation management department and the American aviation management department. According to the regulations of our China Civil Aviation Management Department, this This engine has also automatically obtained our country's civil aviation engine type airworthiness certification."

Before that, Zhang Qihang struggled for a long time on which engine to choose, whether to use the Lycoming O-22, ROTAX engine on the Robinson R360, or the Continental engine, and even considered whether to directly modify a car engine such as Subaru’s EJ20 is used as the power of this ultralight helicopter. After all, in the future, Subaru EJ20 and EJ25 series engines will also obtain type airworthiness certification.

However, after consulting Vice President Wu, Zhang Qihang finally gave up on using automobile engines. The reason is very simple. According to the domestic civil aviation management regulations, as long as it is a manned aircraft, it must obtain airworthiness certification. The core component, the engine, must also obtain type airworthiness certification.

This rule completely blocked Zhang Qihang's idea of ​​using a car engine, and also limited the range of power options for this ultra-light helicopter: there were only three piston engines from Lycoming, Continental and ROTAX to choose from.

Since he can only choose from the engines of these three companies, Zhang Qihang can only choose a relatively less dark engine provider: ROTAX.

After all, compared with Lycoming and Continental, ROTAX cooperated with China earlier. As early as the early 80s, the Bee 3 ultra-light fixed-wing aircraft developed by Beihang used a 447-horsepower 42.6-type engine produced by ROTAX.

After sending the quotation to Huateng Industrial Group last time, ROTAX took the initiative to contact Huateng Group, saying that if Huateng Industrial orders more than 50 engines at a time, it can enjoy the VIP customer price.

Of course, the most important reason for choosing Rotax914 is that this engine has an excellent power-to-weight ratio. The weight including the reducer is only 75.5 kg, but the maximum power reaches 84.5KW (115 horsepower), and the power-to-weight ratio reaches 1.12:1, in the field of piston aero engines, this power-to-weight ratio is quite remarkable.

Although the Lycoming O-22 on the Robinson R360 has a maximum take-off power of 136 horsepower, the weight including the reducer has reached 127 kilograms. It can be said that the advantage of the extra 25 horsepower is almost completely overwhelmed. The weight of the 51.5 kg that came out was smoothed out, and I even had to go back and find a little bit.

"84.5 kilowatts, 84.5 kilograms?" A helicopter designer from the Miri Design Bureau, who has always been the backbone of the Miri Design Bureau, immediately pointed to the Robinson R22 in front of him and asked: "What about the engine of this helicopter?" How about power and weight? Well, how much does the plane weigh?"

For helicopters, the maximum power and weight of the engine are the two most important key factors.

"The engine has a maximum power of 100 kilowatts and a weight of 127 kilograms," Zhang Qihang said immediately, "The weight of the empty plane is 399 kilograms, and the maximum take-off weight is 622 kilograms."

"That's no problem." The designer named Antonov chuckled confidently: "The American guy is the American guy, it's too wasteful in design, if we entrust this helicopter to us, and As long as it meets the standards of this aircraft, we can control the weight of the aircraft to less than 300 kilograms, and the maximum load including fuel, passengers and luggage can reach 200 kilograms."

Zhang Qihang's eyes widened when he heard this: "Mr. Antonov, are you sure?"

"Of course," Antonov said confidently: "This is still considering the cost and only using the most common aviation materials. If a large number of new aviation materials such as carbon fiber and composite materials are used, I even have Make sure to keep the weight of the plane below 280 kilograms."

Looking at the Miri Design Bureau and other members of the Kamov Design Bureau, everyone did not have any unusual reactions to Antonov's words. Obviously, they all felt that Antonov's words were fine. Asked: "Mr. Izotov, Mr. Antonov, if I hand over the research and development of this aircraft to you, when will you two be able to make the first flight?"

After finishing speaking, Zhang Qihang added: "In addition, this aircraft needs two models, one is for plant protection purposes, does not emphasize flight speed and altitude, and requires to carry as much pesticide as possible; the other is for beginners Level flight teaching and training requires a certain speed and altitude.”

As for the research and development funding, Zhang Qihang didn't mention it at all. Just kidding, this project is of great significance to Huateng Industrial Group, so naturally the funding must be guaranteed.

Sergei Izotov said confidently: "The engine is already there. As long as the funds can be guaranteed, one year is enough."

Antonov also nodded: "Yes, for such a simple thing, as long as the engine and funding can be guaranteed, one year is enough!"

In fact, in the eyes of Sergei Izotov and Antonov, developing such a simple and even calling it a helicopter is an insult to the helicopter, and it will take another year?
What are you kidding? !

Half a year is enough!
However, the two of them also understood the truth that they should not talk too much, so they finally gave a one-year deadline.

Zhang Qihang didn't know that Antonov and Antonov still had such small calculations in their hearts. He thought that Robinson started designing the Robinson R22 in 1973, and began its first test flight in August 1975. The whole process took about two and a half years.

But considering that the Robinson R22 was created by Frank Robinson himself in the garage of his home, and he still has so many people in his hands, Zhang Qihang feels that one year is indeed enough.

Thinking of this, Zhang Qihang nodded and said: "Then it's settled, Mr. Izotov, Mr. Antonov, this project will be handed over to you two. As for the formation of the team, you are more familiar with each other, so the team After the team is formed, you write a report, explaining how much money is needed, what equipment is needed, and what departments cooperate, and I will approve it."

"Ok."

Sergei Izotov and Antonov nodded together.

"And you, Mr. Izotov," Zhang Qihang said to Sergei Izotov, "There is no way to use the ROTAX engine at this stage. Remember what Yang Zhijun told you before? We have to do it ourselves. Research on our aviation kerosene piston engine, this matter also requires you to grasp it.”

For Zhang Qihang, even though ROTAX is the cheapest of the three major piston-type aero engines, it is too expensive, and the most terrible thing is that it needs to spend foreign exchange. In this case, the self-developed piston aero engine has become a necessary choice for Huateng Industrial Group.

Sergey Izotov nodded happily: "No problem, leave it to me."

Zhang Qihang finally breathed a sigh of relief.

(End of this chapter)