Chapter 159 Natural Freezing Experiment
“Ahem——”
Even though Chang Haonan was quite thick-skinned, he couldn’t bear the three burning glances, so he quickly continued what Liang Shaoxiu said just now. The head continued.
“I’m afraid the MA-60’s FAA certification will be put on hold. The 603 Institute is now in contact with a European company.”
“As for the airworthiness certification work... With the participation of European companies, we can strive for EASA’s airworthiness certificate, but as I said just now, when it comes to standards, we don’t rely on others for anything, so we must still focus on ourselves.”
As someone who has indirectly participated in the design of the MA-60, he will still have a clear idea of the future direction of this project.
In 1997, I went to the FAA for airworthiness certification and failed. After many years, it could only be used in China and a few third world countries. In the end, my grandma didn't love my uncle and he didn't love me, so he was left to the Coast Guard as a patrol. The plot that happened in the original timeline is naturally impossible to repeat in this plane.
Originally, Chang Haonan had been worrying about what kind of entry point he would use to make today's China Aviation Industry give up its dog-licking behavior towards the FAA. However, during the previous turbojet 14 test, Natong came from the National Defense Science and Technology Commission. The call from the working committee seemed to have solved the problem for him.
He heard Du Yishan say that the focus of the Shanghai Aircraft Manufacturing Factory's production of MD90 aircraft has changed from "accepting and learning the full set of American aviation industry standards" to "digesting and absorbing key technologies and accumulating experience in large-scale civil aviation aircraft" Final assembly manufacturing experience.”
Considering that AgustaWestland has begun negotiating specific model cooperation matters with China Aviation Technology, then the future development focus of the MA-60 should shift to Europe.
"That's good, that's right!"
Lin Guofan became excited again. He is now as enthusiastic about formulating independent standards as Chang Haonan:
"The standard is also It can only be developed and improved through continuous practice. After all, the Y-8 is a military transport aircraft. Many of its design orientations are different from those of civil aviation. It is impossible to completely transfer its test flight experience to other aircraft, which is not conducive to further development. Promotion.”
“So it would be great if there was a serious civilian model like the MA60.”
In fact, what he was talking about was a question of military and civilian standards. Although the two can be the same in many places, there will ultimately be some differences.
For example, military aircraft can accept higher performance at the expense of certain reliability, and the indicators of environmental protection, emissions, and economy are not strict.
The civilian model is completely different.
“Anyway, let’s start with the natural icing test first.”
Chang Haonan tapped the table lightly with the pen in his hand, and finally let a few people fly out. His thoughts came back:
“To form a set of universal aircraft standards that meet the requirements for all models is completely different from only conducting icing tests on the wing part of a single model. The workload is at least an order of magnitude greater.”
"We have to solve the two problems of 'what to test' and 'how to test' at the same time, and at the same time, we must try our best to provide some guiding data and opinions on anti-icing work."
Once it comes to practical issues, You need to think more rigorously, and you definitely can't talk as freely as when you were just thinking about the future.
The four people began to think about the next step from their own professional perspectives.
Actually, Chang Haonan had a bigger ambition that he had not said yet -
In the mid-to-late 1990s, Europe and the United States had a series of air crashes caused by ice accumulation, and even It once affected public confidence in the civil aviation industry.
Especially Europe.
This is a critical time period.
The newly established EU is not the brain-dead organization it was after more than 20 years ago. European countries, including the United Kingdom, are still somewhat dissatisfied and unwilling to use the power of the other side of the ocean to The United States is following suit.
In this matter, China and Europe have common interests.
So he wants to use the natural icing test, an airworthiness certification project that has a great impact on flight safety, as a breakthrough to try to promote comprehensive equivalence and mutual recognition of the two sets of standards of CAAC and EASA through AgustaWestland. .
If successful, it means that aircraft models that obtain airworthiness certificates in China can be sold directly to Europe in the future.
Taking into account the demonstration effect of EASA, probably no one will have to worry about sales in places other than North America.
This is a milestone development for China Aviation Industry.
... After more than ten minutes of careful consideration, Lin Guofan, who regained his composure, spoke first:
"I think we still have to determine a basic work process according to the priority of things. ”
“That’s fine.”
Liang Shaoxiu said and took out a piece of paper from the side:
“We have currently identified several factors that affect the ice accumulation on the aircraft. The next step is to determine the airspace and atmospheric conditions requirements for natural icing test flights, such as temperature, water droplet diameter and liquid water content."
Chang Haonan then continued to add:
"Regarding this, it is best for Professor Lin to study the distribution of ice accumulation in our country at different time periods and at different heights in advance, compare it with foreign climate conditions, and set several different anti-icing levels, otherwise there will be nothing. Isn’t it a joke that we cannot complete the test in our own country if we set standards?”
In fact, the reason why later generations of natural icing tests are almost monopolized by the FAA is because of their research in this area? In addition to being earlier, another big reason is that the natural environment is suitable and the weather forecast is accurate.
It is very difficult to prevent the aircraft from accumulating ice at all.
But it is more difficult to get the aircraft to accurately accumulate ice according to preset conditions.
It can’t be too cold or too hot, it can’t be too dry or too humid, the airflow can’t be too strong or too weak...
In short, the Great Lakes region is basically the place with the highest ice accumulation frequency in the world.
This is certainly not a good thing for flight safety, but it is a treasure for flight testing.
A test that would take months to complete elsewhere could be completed in a week at the FAA.
As far as China's situation is concerned, there is definitely no such a chosen place as the Great Lakes region, but it is definitely not impossible to find an airspace that meets the conditions.
Talent is not enough, so work hard to make it happen.
Then you can only rely on meteorologists to make accurate forecasts.
“Don’t worry, my research team has been tracking the climate conditions in northwest China for nearly 20 years, and we still have some experience in these aspects.”
Lin Guofan gave a generous hand He waved and took over the job.
"Then, our 182 Factory, and the 603 Factory that may join in the future, can be responsible for designing a standardized aircraft parameter measurement system..."
"I can continue to research passive de-icing methods …”
"..."
"Oh, by the way, I almost forgot the most important thing. The application for the natural freezing test project must be submitted as soon as possible. Otherwise, by the end of the year, all projects will be busy reviewing and it may be necessary. Put it off until next year."
Chang Haonan reminded Liang Shaoxiu next to him.
“No problem.”
The latter nodded:
"I will start preparations after I go back today, and try to win the project before mid-December!"
"That's it, let's go back and complete the preliminary preparations first. This matter cannot be rushed. It will take many brother units to cooperate later."
"The meeting is over!"
(End of this chapter)