The maximum cruise speed of the J-30 fighter without afterburner is up to more than Mach 2.2. This is mainly due to its excellent low-drag aerodynamic shape, built-in weapons, and high-thrust turbofan 25B engine.

The excellent supersonic cruise performance enables the J-30 fighter to quickly engage the enemy, quickly occupy a position, greatly increase the missile attack area, quickly leave the battlefield, and get rid of the attack.

In the future, in the battle with other fighters, if the J-30 does not want to entangle with them and accelerate its separation, then whether it is the United States' Eagle and 'Fighting Falcon', or the F35 and F22 fighters, they will not be able to catch up with the J-30 fighters with super-cruising capabilities in any case.

To put it simply, if the J-30 fighters turn around and run after the missiles, those fighters will not be able to catch up or reach them anyway.

These military personnel are well aware of the importance of excellent supersonic cruise capability, no wonder everyone is so excited to see the cruise speed of Mach 3.0.

Now, what everyone is most concerned about is how long our J-30 fighter can fly at a cruising speed of Mach 3.0.

As the minutes passed, the entire test flight command center was very quiet, only the sound of occasional instructions and the sound of instrumentation working.

For a long time, supersonic cruise flight, in fact, this is a very vague concept. Supersonic cruise flight, which is often mistaken for a supersonic cruise from the base, is a supersonic cruise until the end of the campaign.

However, in fact, our previous record was that the J-20 cruised at 1.5 times the speed of sound, with a maximum cruising time of 7.5 minutes.

This does not play a fundamental evasive role for the J-20 in the theater of operations. So far, there is only one aircraft in the world that can really achieve long-distance supersonic cruise flight, and that is the U.S. military's F22 Raptor.

Only they can fly with acceleration at 3 times the speed of sound and 2 hours at 2 times the speed of sound. This is a world record, and no fighter can match it.

Now, the J-30 fighter may completely break this record held by American F22 fighters. Time is passing minute by minute, ten minutes passing, thirty minutes passing, even an hour passing.

This J-30 fighter has been cruising at a speed of about Mach 3.0, which is so fast and long. Not only were these personnel of the military inexplicably excited, but also the technical personnel of Tianfeng Technology Company and the test flight commanders, many of whom also quietly glanced at each other.

The J-30 fighter is really excellent, as designed, with excellent supersonic cruise capability, and it is still a high-speed cruise of Mach 3.0.

It wasn't until more than an hour later that the J-30 fighter began to slow down and began to prepare for return. Supersonic cruising for more than an hour, flying a distance of more than 5,000 kilometers, did not fly at such a high speed, not because the plane could not withstand it, but because there was no fuel.

The J-30 fighter has a maximum range of 2,800 nautical miles, which is 1,200 nautical miles farther than the F22 fighter, and even so, more than an hour of supersonic cruise at Mach 3.0. The J-30 fighter will run out of fuel and be ready to return.

Soon. The J-30 fighter landed on the runway of Tianfeng Technology Company, and test pilot Zhao Jixian got off the fighter with a happy face.

As one of the military's ace test pilots, Zhao Jixian has basically seen any test flights, but in his career, he has never been as happy as today. The supersonic cruise of Mach 3.0 made Zhao Jixian addicted.

After getting off this J-30 fighter, Zhao Jixian looked back at the J-30 fighter, and thought to himself, it's enjoyable. It's really enjoyable.

As one of the test pilots of the J-30 fighter, this period of time made Zhao Jixian deeply like the J-30 fighter, and he is almost a die-hard fan of the J-30 fighter.

After carrying out supersonic cruise, the J-30 fighter was slightly inspected, refueled, and then tested its maximum flight speed, which reached Mach 3.5 as designed.

With a top speed of Mach 3.5 and more than 15 minutes of flying at this speed, these two test flights, one supersonic cruise test flight and one maximum flight speed test flight, completely broke the record held by the F22 fighter!

Originally, such a flight test should be a huge test for the aircraft, but this J-30 fighter seems to have performed more than enough, and the test flight task was easily completed.

During the test flight process, the performance was perfect, there was no abnormality, and after the completion of these two key test flights, the J-30 fighter was checked, and everything was normal for the fighter!

All kinds of reports were immediately transmitted to the military, and soon to the military high-level, the J-30 fighter is so good, Mach 3.0 supersonic cruise for more than 1 hour, the maximum flight speed reached Mach 3.5, many military high-level heard such excellent data, a burst of joy.

In the office.

Li Tianfeng called Zhang Haiping as soon as possible, and after listening to Li Tianfeng's report, Zhang Haiping immediately became happy.

Zhang Haiping said: "Mr. Li, this is not simple, it is of great significance!" The cruising speed of Mach 3.0 and the maximum flight speed of Mach 3.5 are too awesome! ”

Zhang Haiping, who was happy in his heart, couldn't hold back his happy and excited mood, and immediately said: "Mr. Li, no, I won't tell you, I want to make a special report to Mr. Wei immediately." ”

Li Tianfeng smiled, he could fully understand Zhang Haiping's mood at the moment, and even Li Tianfeng could imagine that after hearing these reports, the military top brass would definitely be happy and would definitely praise Tianfeng Technology Company.

Sure enough, not long after, Mr. Wei personally called Li Tianfeng on behalf of the military, and Mr. Wei did not hesitate to praise Li Tianfeng and praised Li Tianfeng fiercely.

A few days later, the military issued a commendation to Tianfeng Technology Company......

………

The J-30 fighter has performed well in test flights, the second prototype has also entered the test flight column, and the final assembly of the third prototype has also begun.

In the Chengnan base, whether it is the J-30 fighter or the J-18 fighter, the development is relatively smooth, especially the development of the J-30, according to this progress, it should soon enter the final stage of development.

Using the second-generation core engine technology of Tianfeng Technology Company, and the successful development experience of turbofan 21 and turbofan 25, the development of turbofan 30 engine is also progressing relatively fast and smoothly.

In just two or three months after entering the comprehensive design stage, many key and important parts have basically completed the preliminary design, such as fan casings, fan blades and other key parts.

The turbofan 30 engine, with a fan diameter of 3.6 meters, has an extraordinary technical content and is far more difficult than the turbofan 21 and turbofan 25 engines.

The design team led by Sun Xiaoping has completed the preliminary design, both the design drawings of the fan and the design drawings of the fan blades are very large, especially the fan casing, which is full of several No. 1 design drawings.

Sun Xiaoping personally sent these drawings to Li Tianfeng's office, and personally sent them to Li Tianfeng for inspection, and Li Tianfeng personally checked the design of important and key parts of the turbofan 30 engine.

In the morning, the drawings were sent to Li Tianfeng's office, and Li Tianfeng looked at them for two or three hours, and in the afternoon, Li Tianfeng called Sun Xiaoping to his office.

Li Tianfeng said: "Mr. Sun, I have basically read the drawings, but there are some places that must be designed and improved, and I have written them on the drawings." ”

Sun Xiaoping took a general look, and on each drawing, Li Tianfeng made a certain degree of changes and wrote it on the drawing with a pencil.

Sun Xiaoping has naturally read these drawings once, improved and perfected them again, but because of the gap between the two people's levels, the depth of the problem is different, Li Tianfeng has seen more deeply and thoroughly, and everyone thinks that the basic mature and reasonable design still has a certain amount of room for improvement and improvement in Li Tianfeng's eyes.

Sun Xiaoping said: "Boss, after your change, I believe that the design is more perfect and advanced." ”

Li Tianfeng nodded, and then chatted with Sun Xiaoping about some things on the design of the turbofan 30 engine, and the two chatted for a long time.

The turbofan 30 engine is designed with advanced three-dimensional compressor and turbodynamics design and the reverse rotation of the high-pressure rotor, which can greatly improve the engine efficiency, reduce the fuel consumption and weight of the turbofan 30 engine, and make it the lightest power plant for super large passenger aircraft such as A380.

The two chatted about these designs, and Li Tianfeng said: "Mr. Sun, in terms of design, is there any difficulty, if there is anything that is not sure, you can come to me directly." ”

Li Tianfeng did not give a design sketch for a series of designs in this regard, only a series of requirements put forward in the design technical outline, which were very advanced and a big test for Sun Xiaoping and others.

Sun Xiaoping said: "Boss, there should be no problem, some key technical difficulties, you have explained very thoroughly." ”

The turbofan 30 engine is not only a highlight of thrust, but also of low fuel consumption. Sun Xiaoping and other designers have long calculated that if the turbofan 30 engine is installed on the Airbus A380 passenger plane, the fuel consumption per passenger per 100 kilometers is only 2.5 liters, which is lower than a family car.

Powered by two turbofan 30 engines, the Airbus A380 engine can make a transcontinental flight, such as flying from Beijing to Paris, or from Paris to New York, and the fuel savings alone are not a small amount.

Therefore, the turbofan 30 engine is still in the development stage, and it immediately won orders from Airbus and Boeing, otherwise, these two companies would not easily place orders.

………

Today's three watches, the second one is sent! (To be continued......)