Seeing Ma Fengshan's suspicious gaze turned to himself, Tan Zhenhua coughed slightly and asked straightforwardly: "Master Ma, have you ever heard of the "BAC" passenger plane?"

Ma Fengshan was taken aback for a moment. In his thoughts, this classmate Tan Zhenhua who came with Guo Rongwei was at most Lao Guo’s proud disciple. Then, Guo Rongwei should lead the conversation with himself. Yes, but why is this student Tan asking the question?

Moreover, he also heard about the "BAC" plan proposed by Guo Rongwei to the ministry from several channels. Guo Rongwei himself did not hide it from him. When he was making plans and reporting materials at the beginning of the year, Guo Rongwei deliberately hit it. Several phone calls to ask for their own opinions.

Shouldn't this matter be led by Lao Guo himself? Could it be that this student has made Professor Guo Da satisfied enough to let go of such a big task?

Guo Rongwei looked at Ma Fengshan’s slightly hesitating expression, and explained with a smile: "Old Ma, don’t worry about it. I’m a student. He is actually named and did not study in Ning Hang. This kid is thief, he has already I was admitted to the Department of Electronics of Stanford University in the U.S., and I’m going to study abroad in the fall. As for what role he can play in the "BAC" project, hehe, let me put it down first, so don’t ask too much. For questions that are not confidential, you can treat him as if I asked him."

Although Ma Fengshan is still confused, he nodded and replied: "You are asking about a British plane or a civil aviation plane. What secrets can be guaranteed? If you want to protect it, it's the British side."

After a pause, he sorted out his thoughts a bit, and then said: "The "BAC" you are talking about should be the "BAC1-11" designed and manufactured by "British Aerospace Corporation". This is indeed a good airplane."

Tan Zhenhua was secretly happy. At the beginning, it was exactly the same as Guo Rongwei's tone when he first talked about the plane. From this point of view, the one I singled out using not too much aviation knowledge was really wrong.

After opening the chatterbox and talking about his professional field, Ma Fengshan began to talk about:

"Since we talked about "BAC", we must first talk about the "British Aerospace Company" that designed and manufactured it.

"This is a company with a very long history. It was not called this name at the beginning. In 1960, the company was born after the reorganization of Vickers, Bristol and British Power Company. The original name was "British Aircraft Company", and in 1978, Hawke Sidley and Sugeran Airlines merged and changed to its current name."

"Oh, by the way, Zhenhua classmate, you may not know, let me explain, this later merged "Hawksidley Company" itself also has very strong aircraft design and manufacturing capabilities, currently occupying the largest number of China The "Trident" aircraft of the civil aviation fleet is designed and manufactured by this company."

"So, after such a merger, the "British Aerospace Company" can be said to have Europe's premier aircraft design and manufacturing capabilities, and the "BAC1-11" you mentioned is the company's most successful civil aircraft. Aviation products."

Ma Fengshan did not hesitate to use a few "most" to express his admiration for the "BAC1-11" aircraft and the "British Aerospace Corporation" that designed and manufactured this aircraft.

"Speaking of the aircraft itself. This aircraft should have been designed around 1960, and the prototype was flew for the first time in 1963. According to the practice of these European aviation manufacturing companies operating civil aircraft projects, it had been received before the first flight. Orders from multiple airlines."

"However, the test flight of this plane was not smooth. In October 1963, one of the planes participating in the test flight crashed and all the people on board were killed. After analysis of the causes, it was found that the accident was caused by a "deep stall." , And this phenomenon is due to the hedging effect of the wing and the tail engine at high angles of attack, which causes the tail airflow to decrease, leading to catastrophic results."

"Because of this accident, "British Aerospace" made major changes to the design of the aircraft, designed and added equipment called "vibrating rods" and "push rods", and redesigned the leading edge of the wing. , So that the air flow can smoothly enter the engine and tail. After this modification, "BAC" has become a very safe aircraft."

"By 1964, this aircraft obtained flight certification from major European countries including Britain and the United States, and officially began to be delivered to users. The first commercial flight was carried out in January 1965, and it had been delivered in 1966. In order to meet the growing demand for orders, "British Aerospace" had to build another production line at its second factory in Weybridge, which shows its success."

"As far as I know, the "BAC1-11" that has been delivered, including its various development models, should have exceeded 400. To be counted, it should be the largest-selling passenger aircraft in the entire civil aviation field in Britain by far."

"So, why is this aircraft successful?" Tan Zhenhua asked.

Ma Fengshan thought for a while and replied: "Of course there are many reasons, but the most important thing comes from three points."

"First of all, it must be safety. As for the reason, I have just explained it, and all new aircraft produced since 1973 have the ability to "blind landing", that is, instrument landing, which further improves its safety. The flight records of more than ten years since it was delivered to users can also support this."

"Then it is its practicality and economy."

"The original model of this aircraft can carry 80 passengers, but now I know that its latest modification is the "BAC1-11-500" which was put into production in 1978. The maximum passenger capacity has reached 136. Instead, fuel consumption has been reduced by 7%, which is a very important performance improvement for civil aircraft."

"The last is comfort, and this is mainly reflected in the control of noise in the cabin."

"The engine of this aircraft is the main noise source located at the rear of the aircraft. It naturally has the advantage of being farther away from the passenger cabin. After continuous improvement of the engine, the noise is further reduced, which also makes passengers more willing to choose this aircraft."

Speaking of this, Ma Fengshan paused for a moment, lowered his head and took a sip of water, and arranged his thoughts by the way. Tan Zhenhua took the opportunity to intervene and asked, "Chief Ma, who is the main international competitor of this aircraft and how does it perform?"

Hearing this question, Ma Fengshan's hand movement was stiff, almost splashing out the water in the cup. He calmed his mind, then raised his head and took a deep look at Tan Zhenhua, and then replied: "Its main competition The opponents are the “Boeing 737-200” of the “Boeing Company” and the “DC-9” of the “Mc-Dawley” Company. This “DC-9” is the “MD-82” that we are negotiating to introduce and produce in China. Prototype."

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