Chapter 1243

However, many people in the industry still have many reservations about the idea of super Saiya fit. At most, they admit that one plus one is far greater than two.

It's really because the whole j-8e multi-purpose fighter has long been separated from the basic framework of J-8II m fighter. Instead, it combines the body of J-8II m with many mature technologies acquired in j-7max after China's take-off for more than ten years to form today's j-8e multi-purpose fighter.

Let's talk about the wing of the aircraft. In fact, it is the strake wing plus swept wing layout used in the latest improvement of j-jiao-7max.

You know, China take off has been studying this airfoil for ten years. From the initial layout of strake wing and double delta wing, it is found that the double delta wing is complex and has poor high-speed performance at high altitude, so it is changed to a more concise swept wing; From general swept wing to high maneuvering wing with leading edge slats; From rigid transition between strake wing and swept wing to smooth transition.

Over the past ten years, the take-off Department has invested a lot of effort and resources in this type of wing. Not only that, the take-off Department has fully absorbed the successful experience of the airfoil used by Yakovlev Design Bureau of Russia on the jacques-130 advanced trainer, and has repeatedly verified a series of wing configurations by using Zhenlong series of veriifcation aircraft.

Because of this, in the layout of strake wing and swept wing, the take-off system is not only not inferior to any domestic aviation R & D and production unit, but also slightly higher than a line. After all, the accumulation of more than ten years is not a decoration.

A similar situation is aeroengine.

The previous J-8 II Fighter used the turbojet-13. The engines used by the typical second generation combat aircraft not only have high fuel consumption and short service life, but also have poor low altitude and low speed performance.

The old Jian jiao-7max also used this engine. It's too clear what kind of urine take-off system it is. As soon as its wd-58ml turbofan engine was mature, it was decisively replaced, and its performance was greatly improved.

Therefore, on the j-8e multi-purpose fighter, the wd-58mvp turbofan engine based on the wd-58ml turbofan engine is adopted by China's take-off.

The cruise thrust is 5.8 tons and the afterburner thrust is 8.4 tons. Although it is only a medium-sized aero-engine, the twin engine linkage is enough to give the j-8e multi-purpose fighter with a maximum take-off weight of 22 tons surging kinetic energy.

So the j-8e multi-purpose fighter has two kinds of operation modes: ground and air defense.

In the ground attack operation, the operation radius is 1250 km in the high low high attack attitude.

The operation radius is 780 km in the low low low and ultra-low penetration attitude.

As for the air defense operation mode, the operation radius of interception operation (supersonic) is 478km; The operational radius of normal Air Defense Cruise (subsonic) is 1460 km.

Based on this, in a typical air defense operation in an important area, the j-8e multi-purpose fighter can carry out 2-2.5 hours of air patrol over the air 800 km away from the base. Under such a state, it can carry out 10-15 minutes of high-intensity air combat at any time.

This alone has left the J-7 far behind. Even the so-called J-8II fighter, a basic model, has been repeatedly crushed on the ground.

Of course, this is only the average level of the j-8e. As a multi-purpose fighter, due to different missions, various indicators have changed, such as the missile load and fuel load.

When attacking the ground, the classic loading capacity of j-8e is 7.5 tons of ammunition plus 4.2 tons of oil.

Under the air defense interception operation mode, the missile carrying capacity is 5.3 tons and the oil carrying capacity is 6.4 tons.

With a climb rate of 302 meters per second, a practical ceiling of 15000 meters, and a maximum overload of 8 g, this typical heavy fighter with an empty weight of 10.3 tons and a wingspan of 8.6 meters is not the best, but it is by no means a soft persimmon.

Of course, in terms of speed, the j-8e is much weaker than the J-8II fighter, from Mach 2.2 to Mach 1.8, and the practical lift limit is from 20000 meters to 15000 meters. However, the positioning of the two fighters is different after all. The J-8II fighter pursues high altitude and high speed, which is mainly used for interception; The j-8e is a more comprehensive multi-purpose fighter.

Therefore, in a sense, there is no basic comparability between the two.

However, there is no comparability. As an improved version of the J-8 series, the j-8e can still see many shadows on the J-8, the most typical of which is the airframe.

There is no obvious change in the main structure, but the J-8II fighter's slender, bee waist like and thick fuselage is still used.It's just that even if we use the airframe of the J-8II fighter, the j-8e, on the whole, is regarded by some carefully observed industry insiders as an enlarged and improved version of the j-7max for China's take-off.

Because regardless of the wing, the inlet and the double tail fins at the bottom of the body's tail, regardless of the highly recognizable body of the J-8 II fighter, it is actually a replacement of the J-7 max.

However, many people in the industry don't think so, because in a sense, the airframe of j-jiao-7max and J-8II fighters have a very deep origin. They are both developed on the basis of MiG-21. From this point of view, the j-8e is not so much an improved J-8II fighter, It is better to say that the mass production model of j-e-7max is more appropriate.

In fact, it is true, because not only the wing, intake port and aeroengine, but also the integrated avionics system inside the j-8e was directly transplanted from the j-7max.

Because the integrated avionics system specially built by Yakovlev Design Bureau for jac-130 advanced trainer used by j-jiao-7max is a simplified version based on Su-30 avionics system.

When China Tengfei acquired Yakovlev Design Bureau, it naturally put this system into its own pocket without any burden.

Now, it's natural to apply the domestic avionics system to the j-8e without being mature.

With all this, senior people in the industry dare not admit that there is a combination. Even if one plus one is greater than two, it's a euphemism. After all, there is a big difference between one of Tengfei and one of Northeast Airlines in essence.

However, from Zhuang Jianye to ordinary employees, China Tengfei would rather be a combination of super Saiya people than an alternative improved version of j-jiao-7max.

After all, the leader is Northeast Airlines Group. Even if Huang Feng needs reform and introduces China's take-off, it's not good to do it too much.

You say this is Jian jiao-7max. Northeast Airlines Group has nothing to do except the airframe and vertical tail. That's not the same as slapping face with the collar of Northeast Airlines Group. You let Huang Feng, who is based on cooperation, bake on the fire.

If that's the case, if Northeast Airlines Group stirs up the trouble, whether they are alive or dead, won't China take off such an excellent opportunity to enter the fighter program and reap a high profit?

Therefore, Zhuang Jianye, a group of take-off people, don't care about face at all. What they are interested in is the actual number of orders, the super high profit margin, and the opportunity to actually send the new models of take-off series into the army.

Compared with these real benefits, it's not a matter who takes the lead and who becomes the boss. As long as you can take these advantages as well as those who lose face, it's not a matte