Chapter 150: Firefighting, the wings are frozen!
Just as the Russian side re-planned the flight show for the next day, Chang Haonan no longer had the energy to continue paying attention to the Xiangzhou Air Show.
No one expected that Chang Haonan’s next work place would not be Shengjing 601 Institute where the finishing work of the Eighth-Third Project still needed to be completed, nor would it have already extended an olive branch to him and was just waiting. The 611 schools in Chengdu that had their projects reviewed and approved were not the 602 schools in Bingcheng that he only chatted with at the end of the dinner.
It is the Nanzheng 182 Factory that has not even appeared at the air show.
After the dinner on the first day of the air show, Chang Haonan, who was already lying on the bed and about to fall asleep, was suddenly awakened by a rapid ringing of the doorbell.
The visitor is a local staff member from Xiangzhou, who should be the organizer of the air show.
After confirming the identity of the person outside the door, Chang Haonan sleepily opened the door a crack.
He was a little angry when he was woken up.
"What's the matter?"
As a result, the other party's words made him sleepless:
"Comrade Chang Haonan, there is a call from Nanzheng, saying that there is an urgent matter for you."
"A call from Nanzheng?"
Chang Haonan was stunned for a moment.
He didn't remember having any interactions with him there.
“Should I go down and answer the phone?”
The person outside the door shook his head:
“No, this call is confidential and it is an internal call, so you’d better change your clothes, we are going to the Xiangzhou Municipal Party Committee’s Confidentiality Office.”
“ Okay, just wait for me."
......
Nearly an hour later, Chang Haonan, who was pulled out of bed, finally rushed to the confidentiality office and contacted Du Yishan on the other end of the phone. Contacted.
"Xiao Chang, the Science and Technology and Industry Committee has issued an urgent task. I need you to go with me to Nanzheng 182 Factory."
"Factory 182...is Shaanxi Fei?"
< br>When Chang Hao originally started working, Factory 182, like Factory 172, had become the aircraft manufacturer corresponding to the 606. Its presence in the field of aircraft design was quite weak, so it took him about a second to react. That's where the other party said it was.
"Yes, Shaanxi Aircraft." Du Yishan on the other side of the phone said in a serious tone:
"Just this evening, a special model Y-8 aircraft that had just been modified was preparing to land after its test flight. During the process, the pitch balance was suddenly lost. Although the aircraft did not cause a first-class accident due to the low altitude and the timely response of the crew, the aircraft was still seriously damaged. It was initially suspected that it encountered ice on the wings.”
"The technical capabilities of Factory 182 are relatively limited, so we have applied for foreign aid. We need to help find out the specific causes of the accident and improve the aircraft."
"Before the launch tomorrow morning, there will be a Boeing The 737 landed at Xiangzhou Airport. You take that plane to Nanzheng. We will talk about the rest after we arrive."
Hearing this, Chang Haonan was also shocked.
The Y-8 wing is icy.
In the original timeline, this was a long-standing problem that had plagued the Chinese Air Force for nearly 40 years, and it resulted in extremely heavy losses.
For example, on June 3, 2006, an Air Police 200 early warning aircraft crashed while performing a mission. All 40 people on board, including the crew, died. 34 of them were senior engineers who were testing radar and electronic equipment. For my country's aviation industry, Developments in electronics have dealt a heavy blow.
He even knew some of the victims.
According to the investigation, although the cause of the accident was also non-technical factors such as overloading of the aircraft (a lot of additional test equipment was installed), the main reason was the instability of the pitch axis caused by ice on the wings.
Obviously, the problems encountered by Nanzheng this time should be similar.
"Okay teacher, I understand." "See you tomorrow."
After hanging up the phone, Chang Haonan was in a daze.
He didn't know whether the accident in 1996 existed in his previous life. After all, it was just a second-class accident with no casualties, and it might not be reported and publicized.
But this is undoubtedly an opportunity for redemption——
Including the June 3 air crash, in the first 20 years of the 21st century alone, the Yun 8 suffered at least because of the same or similar As many as 4-5 planes crashed due to the reasons.
Even if Chang Haonan has changed many things after his rebirth, at least in the next ten years or so, the People's Air Force will not be able to completely eliminate this model.
It will also be almost the only medium-sized special aircraft platform available in the aviation industry before the Tu-204/214 realizes localization.
Therefore, if the problem of Y-8 wing icing can be completely solved now, a lot of unnecessary losses can be avoided.
Those outstanding pilots and engineers can continue to shine in their positions...
That night, Chang Haonan had insomnia.
After getting on the Boeing 737, he finally rested for a while on the plane.
Until I was woken up by the wheel hitting the ground and the subsequent sound of brakes.
After the plane stopped, Chang Haonan strode out of the cabin.
The cold wind in early November blew on him, making him shiver involuntarily, and he suddenly woke up at the same time.
"Teacher."
Du Yishan has been waiting beside the gangway for some time.
After walking closer, Chang Haonan noticed that his eyes were bloodshot. He probably didn't sleep all night last night.
"Come with me, let's go see that plane first."
Teacher and student got on a jeep next to them, one on the left and the other on the right.
“After I called you yesterday, I led the comrades from Factory 182 to conduct an all-night data analysis, and we have basically clarified the cause of the accident.”
As a veteran figure in the aviation system, although Du Yishan is old, he still has strong abilities in these areas that require experience:
“Due to initial design problems, the Y-8 only had a small diameter in the air intake. The leading edges, wing leading edges and engine guide blades use engine hot air for heating, while the tail leading edges, propellers and hub fairings only have electric heating devices."
"On the aircraft. When approaching landing, the environmental conditions were an atmospheric temperature of 2°C, a humidity of 71%, and a temperature dew point difference of 4°C, which happened to be the most prone to icing conditions. The horizontal tail of the aircraft quickly formed ice, but because the Y-8 did not A convenient way to observe the condition of the tail, so when the pilot realizes that the horizontal tail condition is not right, it is too late to turn on the electric heating de-icing device. "
"According to our calculation and analysis, the supply of hot air to the engine is sufficient. , so there will be basically no icing on the main wing and engine inlet, but the problem of icing on the tail wing is more complicated, and the progress of this Y-8 modification is very urgent, so you need to use simulation methods to improve efficiency, and Try to reduce the number of aircraft for flight testing.”
Just as Du Yishan was introducing the situation to Chang Haonan, the jeep had already arrived in front of a large parking shed.
There was a strange-looking airplane parked inside, or rather lying on its side.
Although the appearance is indeed that of the Yun-8 at first glance, the navigator cabin in the original nose part has been replaced by a bloated "big nose".
This is a Y-8J maritime surveillance aircraft.
In other words, it is a platform planned to be transformed into a Y8J warning aircraft!
(End of this chapter)