Chapter 675 AWACS aircraft can also be matched high and low
The AWACS aircraft does not need to load large cargo at all, and the original tail hatch is naturally directly sealed, and by the way, a lot of control and loading mechanisms are omitted, while reducing the take-off weight as much as possible, it can be regarded as making some contributions to maintaining longitudinal balance -
The addition of a T-antenna during the conversion and the consequent heightened tail made the rear half of the aircraft a bit overweight.
Generally speaking, in the face of this situation, the main balancing means is to adjust the fuel distribution in the aircraft, but the range of the Y-8 airtight type is ridiculously short, if you move the knife in the fuel field, then the actual effectiveness of the early warning aircraft will not have much hope......
As a factory airport, the comfort configuration is naturally average.
Hearing the chief say that he was going to get on the plane, someone soon brought an ordinary metal ladder and erected it at the door on the right side of the plane.
At the same time, a power supply truck has also been parked on the other side, and several ground crew members got out of the car and began to power the plane.
Fortunately, everyone's legs and feet at the scene are quite sharp, at least they won't wrestle on a ladder.
Since there is no sunlight and there is no heating when the plane has not started, it is colder inside the cabin than outside.
Wang Xiaomo, who was a little older, couldn't help but tighten his coat.
As a military transport aircraft designed in the fifties, the Y-8 has a relatively narrow cabin, so only a row of operating stations is arranged on the right side.
Fortunately, the length of the plane itself is sufficient, so the seat is quite enough.
The chief walked back and forth in the cabin twice, then sat down in one of the seats, gently moving the trackball and keyboard fixed to the table.
Two years ago, when Chang Haonan and Wang Xiaomo talked about the early warning aircraft, in addition to the aircraft itself, they also talked about some design details.
For example, do not use an ordinary chair for the operating station, and do not put an ordinary keyboard and mouse on the operating table.
In the final analysis, an AWACS aircraft is an airplane, and various situations may arise when flying in the sky.
In the event of severe convective weather, malfunction or damage, the cabin cannot be fixed and there are as few things that can fly around, the better.
These details seem ordinary, but for Huaxia, which is seriously engaged in early warning aircraft for the first time, it is easy to ignore.
In particular, Wang Xiaomo, who is responsible for the research and development of in-cabin equipment, is not an expert in aviation technology, and some of the experience of ground radar stations cannot be copied to the sky.
At that time, he also admired Chang Haonan's thoughtfulness.
But in fact, these are the lessons learned from the early days of the Air Police 200 project in the previous generation......
"Can this console be turned on now?"
The chief turned his head slightly and asked the people behind him.
"The operator terminal can be turned on, but the radar is not available yet."
Wang Xiaomo replied:
"In order to reduce the risk, the current array will be removed during the first flight and replaced with a counterweight with the same shape and weight, so the radar has not been powered at present."
The time spent by the 14th place to produce this radar is almost longer than that of the 182 factory to produce the following aircraft, which is naturally very precious.
Although the risk of the first flight is very small according to the results of the wind tunnel test, it is not guaranteed to be foolproof after all.
As soon as his answer fell, another technician next to him turned on the power of the terminal cabinet.
In this era, there is not even Windows XP, and the AWACS aircraft naturally does not have a graphical interface operating system.
So the interface is not very good-looking,After a self-test,A schematic diagram of the distance and direction came out on the CRT display,But there is only a light point in the middle。
On another screen next to it, several hints flashed in English.
The chief's foreign language is very good, and I can understand that it means that the radar self-test failed.
"There are a lot of people here who are good at foreign languages, but is it possible for our self-developed radar to change the operation interface to Chinese?"
He didn't directly order what to ask, after all, he was also from a technical background, and he knew that it was important for a layman to guide an insider at such a time.
"There is no difficulty in the software, but the number of bytes occupied by Chinese characters is a bit large, and the performance of the AWACS operation terminal is far inferior to that of ordinary PCs in order to ensure stability, so we still use English."
Wang Xiaomo hurriedly explained:
"But when the hardware level improves in the future, it will not be difficult to change it, so we will strive for ......."
As soon as he said this, he was interrupted by the chief's smiling wave:
"I'm just asking casually, so I don't have to affect the normal R&D progress."
Wang Xiaomo breathed a sigh of relief.
Although he is also well-informed, in this environment, Gao Gao is still a little nervous.
"Since there are no problems with the performance of the radar, what about the aircraft itself?"
Fortunately, the chief did not keep putting pressure on him, but quickly turned his attention to Liang Shaoxiu on the other side.
Although the latter had been prepared, his heart sank when he heard this question.
After all, the early warning aircraft that use phased array radar in the world today are actually two kinds of early warning aircraft in David's country of Fercom and Sweden's Eriyan, and the radar of the air police 200 benefits from the late-mover advantage, even if it is not as good as those two, it is definitely the top three in the world.
In comparison, the platform of Yun 8 is a bit embarrassing......
Of course, in any case, the question must be answered:
"After the improvement of the Y-8 airtight platform, the current key design indicators have been improved compared with the original Y-8C, after the completion of the modification, it is expected to reach a maximum level flight speed of 580km, a range of 2,000 km and a time of about 4.5 hours in the air."
For the special machine platform, it is these three indicators that are important.
It's a pity...... It's not really good.
The maximum no-load range of the airtight platform itself is only 3,000 kilometers, and now it is equipped with a mission load with a total weight of more than 5 tons, coupled with an antenna with huge inducing resistance and a large vertical tail, and it is already the limit of Liang Shaoxiu's ability to keep more than half of the range.
"In other words, in terms of flight performance, there is indeed a certain gap with the ring project."
The chief uses a declarative tone.
In fact, the numbers are here, and there is really nothing to ask.
Liang Shaoxiu didn't know what to pick up all of a sudden.
He could not talk about the entire development process of the flight platform in front of the big leaders.
But at this time, Ding Gaoheng, who had been following him and had not spoken, relieved him:
"Chief, after all, the ring project is a strategic transport aircraft platform, and it is destined to have advantages in terms of range and speed, and the take-off weight of the Y-8 is only one-third of that of the Il-76, which is not as normal as it is."
"Moreover, our domestic early warning aircraft can not only stay on the air police 200 model, when we planned to produce trunk airliners in Shanghai, Comrade Haonan and I considered the possibility of modifying the early warning aircraft with the localized C909 platform in the future."
Hearing this, the chief's eyebrows moved, obviously a little interested in it.
Although Ding Gaoheng is not from an aviation major, he has heard Chang Haonan draw cakes for him many times, and he hurriedly continued to add details when he saw this:
"Although the take-off weight of the C909 is also lower than that of the Il-76, it is the foundation of the passenger aircraft after all, and the basic model has a range of about 6,000 kilometers, and the baggage compartment space under the floor can also be converted into a fuel tank."
"Tupolev has previously made a similar upgrade, which can increase the range to more than 9,000 kilometers, which is enough to provide 8-10 hours of usable mission time, even taking into account the impact of the load and radar antenna."
"Moreover, for commanders and fighters who have been in the air for a long time, the comfort of the passenger aircraft platform is also much better than that of the Il-76 military transport aircraft."
This statement is obviously a pie, but whether it is a domestic phased array radar or a C909 passenger aircraft that is already in the factory to be produced, it is obviously not something that cannot be seen or touched.
So this cake can at least smell it.
Seeing this, Wang Xiaomo next to him also hurriedly picked up the conversation:
"Our radar research and development is also matched with this, in addition to the current T-shaped array used by the air police 200, the fixed three-sided array in the disc-shaped radome, and even the back-to-back rotatable dual-band two-sided array radar are also being developed simultaneously, and the progress should be able to match the progress of the domestic passenger aircraft platform."
Persuade superiors to do something, pay attention to one point to the end.
The more senior the leader, the more questions and aspects to consider in making decisions.
Just say it, you can't keep urging.
Therefore, after the two of them finished speaking, the cabin fell silent again.
Only the hum of the cabinet cooling fan was left in everyone's ears.
And in fact, since the chief will make special arrangements for this trip, it shows that there are already some tendencies in his heart.
A personal visit is merely to dispel some concerns.
There is no need for them to say too much.
I'm about to enter a stage where the content is relatively sensitive.,I re-registered a fan group.,At the bottom of the book details page.,If there's a chapter that can't be posted at that time, I'll post it in the group......
(End of chapter)