Chapter 158: Natural Icing Test
"Ahemβ"
Rao is Chang Haonan is quite thick-skinned, and he couldn't bear the three hot eyes, so he hurriedly followed Liang Shaoxiu's words just now and continued.
"I'm afraid the matter of Xinzhou 60 going to the FAA for approval will be shelved, and now the 603 Institute is in contact with a European company."
"As for airworthiness certification...... With the participation of European companies, we can strive for EASA's airworthiness certificate, but as I said just now, we don't ask for anything on the issue of standards, so we must still turn to ourselves. β
As a person who has been indirectly involved in the design of the MA60, he will still have a clear idea of the future direction of this project.
In 97, I went to the FAA to do airworthiness certification and failed, and then for many years, it could only be used in China and a very small number of third world countries, and finally my grandmother didn't love my uncle and didn't love it, and I was disgusted when I lost it to the coast guard as a patrol plane - so that the plot that happened in the original timeline naturally cannot be repeated on this plane.
Originally, Chang Haonan has been worried about what kind of entry point to make today's Huaxia Aviation Industry give up the dog-licking behavior of the FAA, but during the previous turbojet 14 test, the phone call from the Commission of Science, Technology and Industry for National Defense seemed to have helped him solve this problem.
He heard Du Yishan say that the focus of the Shanghai Aircraft Factory in the production of MD90 aircraft has changed from "receiving and learning a full set of US aviation industry standards" to "digesting and absorbing key technologies and accumulating experience in the assembly and manufacturing of large civil aviation passenger aircraft."
Considering that Agusta has begun to negotiate with Huaxia Aviation Technology on the specific matters of model cooperation, the future development focus of the MA60 should shift to Europe.
"That's good, that's right!"
Lin Guofan became excited again, and he is now no less fanatical about formulating independent standards than Chang Haonan:
"The standard can only be developed and perfected in the process of continuous practice, after all, the Y-8 is a military transport aircraft, and many orientations in the design are different from those of civil aviation, and it is impossible to completely transfer its test flight experience to other aircraft, which is not conducive to further promotion."
"So it would be great if there was a serious civilian model like the Xinzhou 60."
In fact, what he is talking about is a question of military standards and civilian standards, although in many places the two can be the same, but there will be some differences.
For example, military aircraft can accept higher performance at the cost of a certain degree of reliability, and the indicators of environmental protection, emissions, and economy are not strict.
And the civilian model is completely different.
"Anyway, let's start with the natural icing test."
Chang Haonan tapped the table lightly with the pen in his hand, and finally took back the thoughts that a few people had just let go:
"In order to form a set of universal standards for the whole aircraft that meet the requirements of all models, it is completely different from only doing icing tests on the wing parts of a single model, and the workload is at least an order of magnitude larger."
"We have to solve the two problems of 'what to experiment' and 'how to experiment' at the same time, and at the same time, we also have to give some guiding data and opinions on the anti-icing work as much as possible."
When it comes to practical issues, we need to think more rigorously, and we certainly can't talk about it as eloquently as when we imagined the future just now.
The four of them began to think about their next steps from their own professional perspectives.
In fact, Chang Haonan just had a bigger ambition that he didn't say-
In the mid-to-late 90s, there were intensive air crashes caused by ice accumulation in Europe and the United States, which even affected the public's confidence in the civil aviation industry.
Especially Europe.
This is a critical time period.
The European Union, which has just been established now, is not the brain-dead organization that has been in ruins, more than 20 years later, and European countries, including the United Kingdom, are still somewhat discouraged and unwilling to take the United States on the other side of the ocean as their leader.
In this matter, China and Europe have common interests.
Therefore, he wants to use the natural icing test, which has a great impact on flight safety, as a breakthrough point, and try to promote the comprehensive and mutual recognition of CAAC and EASA standards through Agusta.
If it can be successful, it means that the aircraft models that have obtained the airworthiness certificate in Huaxia can be directly sold to Europe in the future.
Considering the demonstration effect of EASA, there will probably be no worries about sales outside of North America.
For Huaxia Aviation Industry, it can be called a milestone development.
β¦β¦
After more than ten minutes of careful consideration, Lin Guofan, who had regained his composure, spoke first:
"I think we still have to prioritize things and determine a basic work flow."
"That's fine."
Liang Shaoxiu said and took out a piece of paper from the side:
"Now that we have identified several of the main factors that affect the ice accumulation of aircraft, the next step is to determine the airspace and atmospheric conditions for the natural icing test flight, such as temperature, water droplet diameter and liquid water content."
Chang Haonan then went on to add:
"On this point, it is best to ask Professor Lin to study the distribution of ice accumulation in our country at different times and at different heights in advance, compare it with foreign climatic conditions, and set several different levels of anti-icing, otherwise there is a set of standards, and the result is that we cannot complete the test in our own country, wouldn't it be a joke?"
In fact, in addition to their earlier research in this area, another big reason why the natural icing test in later generations was almost monopolized by the FAA was that the natural environment was suitable and the weather forecast was accurate.
It's hard to keep the plane completely ice-free.
But it's even more difficult to get the plane to accumulate ice exactly according to the preset conditions.
It can't be too cold or too hot, it's not too dry or too humid, and the air flow can't be too strong or too weak......
In short, the Great Lakes region is basically the most frequent place in the world for ice accumulation.
This is certainly not a good thing for flight safety, but it is a treasure trove for flight testing.
Tests that would have taken months elsewhere could be completed in a week on the FAA's side.
As far as the situation of China is concerned, there is certainly no natural choice for the Great Lakes region, but it is definitely not impossible to find an airspace that meets the conditions.
If you don't have enough talent, work hard to make it up.
Meteorologists are left to make accurate forecasts.
"Rest assured, my research group has been tracking the climatic conditions in northwest China for nearly 20 years, and I still have some experience in these aspects."
Lin Guofan waved his hand quite heroically and took over the work.
"Then, our 182 factory, as well as the 603 institute that may join in the future, can be responsible for designing a standardized aircraft parameter measurement system......"
"I can continue to do research on passive de-icing methods......"
ββ¦β¦β
"Oh, by the way, I almost forgot the most important thing, the project application for the natural icing test must be submitted as soon as possible, otherwise at the end of the year, all the projects will be busy reviewing, and it may be delayed until next year."
Chang Haonan reminded Liang Shaoxiu next to him.
"No problem."
The latter nodded:
"When I go back today, I will start preparing for the project and strive to get the project down by mid-December!"
"That's it, let's go back and make the preliminary preparations first, this matter is not urgent, and it should require the cooperation of many brother units later."
"Adjournment!"
(End of chapter)