Great Power Heavy Industry: Rise

Chapter 138 Flying Wing Shape

After discussing the power system and weapon system, it was already 1 pm.

Everyone went to the 14th floor of "Tianwaitian" for lunch, and then went to the leisure area to relax for more than half an hour.

Some people swim, some play ball, some play chess... Zhong Cheng asked everyone to find something to play.

Yang Xi really didn't play, so he played checkers with Zhong Cheng and Zhao Wei, because he didn't know how to play other chess either.

But he didn't enjoy playing checkers, Zhao Wei was always distracted to see Li Mei, and Yang Xi was always distracted thinking about Zhu Rong's teletweeting.

At 2 p.m., the seminar continued.

Everyone also discussed the appearance of the Suzaku fighter. For large fighters, the shape of the flying saucer is definitely not suitable.

The shape of the flying saucer is not very aerodynamic, it is just for the pursuit of flexibility and maneuverability, suitable for small drones.

The shape of the flying wing proposed by Zhong Cheng refers to the shape of the most advanced B-2 stealth strategic bomber in the world.

The shape of a fighter jet mainly refers to the shape of the wing.

From the original straight wing to the later swept wing and forward swept wing, to the popular delta wing and variable swept wing, and the less mainstream S-shaped leading edge wing, canard wing, tandem wing, flying wing, Ring wing, C-wing, etc.

There are so many types, and the development history and principles may not be fully explained in a few books.

Why change?

It is mainly to solve a speed problem and solve aerodynamic problems such as air resistance, vortex, and turbulent flow encountered by the aircraft during high-speed flight.

The difficulty is to meet the aerodynamics and keep the wings from deforming or breaking.

In fact, there is no optimal solution so far.

Considering that the power system of the Suzaku fighter is far beyond this era, Zhong Cheng chose the flying wing shape.

Flying wing aircraft is a kind of aircraft that does not have empennage, and the main part of fuselage is hidden in the thick wing, also known as all-wing aircraft, and the whole aircraft is exactly a wing.

Because the main part of the fuselage is integrated with the wing, the entire wing is used to generate lift with the least air resistance, so the aircraft is the most aerodynamically efficient.

More importantly, this type of aircraft has the least reflection on radar waves, so the flying wing aircraft is also the aircraft with the best stealth.

But the shortcomings are also obvious.

The biggest disadvantage of flying wings is that in order to make the fuselage better hidden in the wings, the wings of the aircraft must be designed much thicker than usual wings.

At low speeds this doesn't matter much, but as the plane approaches the speed of sound, there is a huge drag effect in the relatively thick parts of the wings.

So flying wings are not suitable for high-speed aircraft, they are more sensitive to drag than ordinary aircraft.

There is also the problem of pitch instability. If the center of lift (center of pressure) is not close to the center of gravity, the wings will flip around the horizontal axis during flight.

Flying wings are easy to maintain stability at a certain flight speed, but once the flight speed and attitude change and the center of pressure moves, it is difficult to say that it will maintain stable flight.

However, Zhong Cheng explained that the two problems of Feiyi are not a problem when it comes to the Suzaku fighter.

First of all, the thrust-to-weight ratio of the Suzaku fighter is much higher than that of the B-2 stealth strategic bomber.

The B-2 has a take-off weight of 170 tons, uses 4 turbofan engines, can only provide 32 tons of thrust, and has a thrust-to-weight ratio of only 0.205.

(PS: When there is no special statement, it refers to the afterburner thrust-to-weight ratio)

But the Suzaku fighter is different. The maximum take-off weight is only 30 tons. It uses 5 large Zhurong electric thrusters, which can provide 50 tons of thrust, and the thrust-to-weight ratio is astonishingly 1.67.

At present, the F-35A, the most advanced fighter of the US military, has a thrust-to-weight ratio of only 0.96.

Under the condition of properly adjusting the shape, the Suzaku fighter can reach a cruising speed of 3 times the speed of sound and a maximum speed of 5 times the speed of sound.

Of course, it is more difficult to achieve the 8 times the speed of sound that Zhong Cheng envisioned, but 5 times the speed of sound is enough.

Regarding the unstable shape of the flying wing, the Zhurong electric pusher equipped on the Suzaku fighter is much smaller than the turbofan engine.

It is completely possible to install more than a dozen small Zhurong electric thrusters under the flying wing to balance the fuselage, and also to assist the five main engines to perform vertical take-off and landing or hover in the air for the Suzaku fighter.

Generally speaking, the flying wing shape is currently the most suitable aerodynamic layout for the Suzaku fighter.

After Zhong Cheng's explanation, the team members unanimously agreed on this plan, and this work was handed over to Zhong Cheng himself to complete.

After these two major problems were resolved, Zhong Cheng assigned work to other projects.

The improvement of the power battery was completed by Liu Yuzhu, and there were many professionals in the power battery factory to cooperate;
Gui Bin was responsible for the design of the onboard optical brain. The airborne optical brain on the Suzaku fighter is just a miniaturized Fuxi optical brain, which is not too difficult;
Zhao Wei and Li Mei are responsible for the radar fire control system, communication system, and fighter-related control systems, while Zhou Hu is responsible for the overall layout design of the aircraft.

After Zhong Cheng finished speaking, Zhou Hu asked hesitantly: "Boss, this Suzaku fighter plane is going to be manned. How is the cockpit designed? How is the safety of the pilots guaranteed? Have you figured out who will be in charge?"

Zhong Cheng asked strangely: "How difficult is this? Shouldn't you be responsible for the design together?"

Zhou Hu became anxious when he heard the words, "Boss, driving this kind of fighter jet is different from driving a car. There are too many factors to consider, and it is very professional. I can't handle it!"

Jiang Yan came from the Air Force Research and Development Institute. She was more experienced and explained to everyone:

"During the high-speed flight and maneuvering of fighter jets, pilots are affected by environments such as high-altitude hypoxia, low air pressure, cold, noise, vibration, and acceleration, and have high requirements for their physiological functions."

"Although the military will try to improve the physical fitness requirements of pilots, we still have to consider these factors when designing aircraft, reduce the physical fitness requirements of pilots, and ensure the health of pilots."

"This aspect needs to be solved by professionals who study ergonomics!"

Jiang Yan's words gave Zhong Cheng a big headache. He really hasn't changed his mind about unmanned fighter jets, and they are all laymen in ergonomics.

Learning while researching and developing is a bit of a joke!
Let's find someone!
"Okay, don't worry about Zhou Hu, I will be responsible for finding someone to solve it."

Zhong Cheng continued: "The Suzaku Fighter is a scientific research project that the country attaches great importance to. It will become the new generation of our army's main combat aircraft. We must strive to come up with a design plan before the end of the year. There are still nearly three months. Everyone Is there a problem?"

"no problem!"

Everyone evaluated the projects they were responsible for, and they all said that there was enough time.

Gui Bin said: "If it was the first half of the year, the problem would still be relatively serious. Now that we have the Taixu experimental system running on Fuxi-[-], the design workload has been reduced by more than half."

Zhou Hu followed suit and said excitedly:

"I found that the Taixu Experimental System also has the function of self-learning. The more experimental models are built on it, the more experiments are performed, the higher the degree of simulation, and the easier the modeling process."

"The system can be integrated, Boss, Brother Zhao, you are too talented to design such a system!"

For more than a month, Zhou Hu and Gui Bin didn't go out, they have been using the Taixu Experimental System, and they were very impressed.

Zhong Cheng and Zhao Wei looked at each other, knowing that it wasn't all their fault.

"It's good that there is no problem, everyone!"

Zhong Cheng announced the adjournment of the meeting. It was already past seven o'clock in the evening, and the meeting had been going on for a whole day.

(End of this chapter)