"The Z-1 concept aircraft was designed based on this concept, with stealth performance as the core primary performance indicator. After I absorbed the design advantages of fourth-generation aircraft such as the F-22, J-20 and FC-31, the Z-1 concept aircraft was designed based on this concept. The stealth performance of the 1 concept machine solution has been further improved, and the forward RCS has reached the standard of 0.001 square meters.”
There was a hint of pride in Zuo Xue's gentle and light voice.
0.001 square meters RCS data!
This is the ultimate stealth performance after the final refinement and optimization of the Z-1 concept aircraft plan, which can be said to have reached the pinnacle level of the fourth-generation aircraft.
According to the latest generation classification of fighter aircraft, the fourth generation fighter aircraft is divided into three stages based on stealth performance -
In the early fourth generation,
Four and a half generations,
The peak of the fourth generation.
The final plan of the Z-1 'Ghost' concept machine has 0.001 square meter RCS stealth performance, which is at the peak level of the standard fourth generation.
The theoretical forward RCS of the F-22 is 0.004 square meters, which is approximately equal to 40 square centimeters. It reached the level of four and a half generations when it was born.
Well, it is now at the fourth and a half generation level.
As for the joint multi-purpose stealth fighter F-35, its stealth performance indicators are barely qualified. The forward RCS reaches 0.01 square meters, which is 100 square centimeters of forward RCS. It is an early standard and can be regarded as an entry-level stealth fighter.
As the Z-1'Ghost's core RCS stealth data indicators were announced by Zuo Xue, there was a sudden shock on the field, and everyone was stunned and in a state of confusion.
Shocking!
Unparalleled shock!
A turbulent torrent rolled in and swept through the hearts of the Chinese and Iranian participants.
"What's going on? The stealth performance index has reached 0.001 square meters." Lin Jian's face suddenly turned serious, his eyebrows furrowed. Looking at the confident Zuo Xue and the large digital screen, he felt that the situation was a bit unexpected, and quickly turned his eyes to the Air Force Major General next to him.
This performance index is higher than that of the J-20.
The air force major general's face was natural, and he obviously knew something about the performance of the Z-1 concept aircraft. He shook his head slightly to indicate that nothing was wrong.
Lin Jian understood and nodded without saying anything.
"How is this possible..." Han Cheng's eyes were full of disbelief, his head was severely impacted, he was dizzy, and his heart was unbelievable.
0.001 square meters, the forward RCS is only 10 square centimeters, which has touched the peak of the stealth performance of the fourth-generation aircraft.
As the deputy chief designer of the overall department, Han Cheng clearly understands what this set of performance means!
The on-paper stealth performance of the Z-1 Phantom concept aircraft is a whole level higher than that of the J-20 and CF-24 Darkhalber.
I know my own business, the forward RCS parameters of the J-20 Veyron are basically the same as those of the F-22, still at the fourth and a half generation level.
Han Cheng really couldn't believe the performance of Z-1. He stared at Zuo Xue, wanting to know how this disciple of his own big boss did it.
If the stealth performance of the Z-1 concept aircraft plan is true, the CF-22 'Dark Halberd' will definitely be eliminated. This is a situation he cannot accept.
"Designer Zuo Xiaoxue, is this true? This Z-1 concept machine really achieves a forward RCS performance of 0.001 square meters?!" Kadar was shocked and stood up instantly, looking at Zuo Xue in disbelief. .
"Hello, General, it is indeed true." Zuo Xue confirmed.
At this time, Alberts, the envoy belonging to the leader's side, was a little confused. With a slightly doubtful look, he turned to the aviation expert sitting next to him for answers. He only knew that the stealth performance of the fourth-generation fighter aircraft was very important, and he did not know that 0.001 square meters The true meaning of positive RCS.
"Sir, the F-22 fighter stealth data is generally considered to be 0.004-0.005 square meters of forward RCS." An aviation expert with a beard on his chin said a reference.
"I see."
Messenger Alberts suddenly understood, and instantly understood the significance of the stealth data of the Z-1 concept aircraft.
The stealth performance of the F-22 is 0.004 square meters, and the stealth performance of the Z-1 Phantom concept aircraft is 0.001.
In other words, the stealth performance of a Z-1 is so high that it exceeds the F-22's benchmark parameters by four times.
Four times!
A number that cannot be ignored.
"The Z-1 'Ghost' originated in 2019. It combines the advantages of multiple fighters currently in service. It adopts a fuselage front slat wing + medium trapezoidal wing + double inclination movable vertical tail + full-motion horizontal tail aerodynamic layout, canceling the canard, and the overall lift coefficient 1.8, the air inlet is a DSI scheme, and the tail nozzle adopts diamond-shaped cooling measures to reduce the radar reflection surface and suppress infrared radiation. The radar reflection lobes are reduced to 5, and the stealth effect is excellent."
After everyone digested the ultra-high stealth performance of the Z-1 'Ghost' concept aircraft, Zuo Xue continued to explain the technical report, revealing the aerodynamic layout of the aircraft body and other important performance indicators:
"In terms of mobility, the power system is equipped with two 19-ton vector turbofan engines to achieve super maneuverability and supersonic cruise performance requirements, which are generally average. In addition, due to the reduced volume of the new vector engine and DSI inlet, the main built-in bomb The depth of the magazine reaches 0.6 meters and has 8 mounting points. The depth of the side magazine is 0.4 meters, each has 2 mounting points, and the total number of mounting points reaches 10."
The pursuit of ultimate stealth performance, second place in situational awareness performance, and average maneuverability are the overall situation of Z-1.
When it comes to fighter aircraft design, you get what you give up.
If you choose to improve stealth performance, some aspects of performance will need to be reduced, and it cannot be perfect.
Of course, it has to be said that the Z-1 is the only selected model within Chengdu Aircraft that does not adopt a canard layout. The other three models all adopt a close-coupled canard layout.
Zuo Xue canceled the canards in order to maximize the stealth performance of the aircraft.
Compared with the increased maneuverability of losing the canard layout, the benefits brought by maximizing stealth performance are extremely significant.
Everyone present agreed with this design concept and expressed their affirmation.
After the small problems before Zuo Xue's report, everyone now understands the importance of stealth performance.
"It was actually done through pure design. It's so powerful." Han Cheng saw the aerodynamic layout structure diagram of the Z-1 concept machine on the big digital screen, secretly smacking his lips inwardly and feeling a little numb.
exaggerate.
That's just an exaggeration.
The Z-1 concept machine actually achieved a positive RCS indicator of 0.001 square meters through pure design!
What is the concept of pure design?
It relies solely on the fighter designer's own strength and uncanny craftsmanship to design a fighter jet with extremely high stealth performance, without relying on other auxiliary measures and technologies to reduce the RCS area.
Xu Yun and Cao Ping'an frowned and secretly thought it was trouble. They glanced at Zuo Xue next to them, but they did not expect that the other party was the real opponent in this review meeting.
"The basic performance indicators of the Z-1 stealth concept aircraft are - maximum flight speed of Mach 2.2, maximum flight altitude of 22,000 meters, range of 4,500 kilometers, combat radius conversion ratio of 0.43, combat radius of 1,935 kilometers, dead weight of 19.5 tons, maximum load capacity of 42 tons... ..." After the design concept was elaborated, Zuo Xue moved to the next stage and reported on the basic performance design indicators of the Z-1 'Ghost' concept aircraft.
The light voice like a trickling stream filled every corner of the conference hall. The entire technical report was faithfully recorded by Tianji who stayed in the dark.
The mood of the Iranian Air Force delegation gradually calmed down. Everyone in the Iranian Air Force delegation was attentive and listened carefully like students in the classroom. They did not dare to miss anything, lest it cause misjudgment and incorrectly select a fourth-generation fighter aircraft that does not meet the needs of the motherland.
