Chapter 147 The Russians are a little confused

At the same time, in the hotel next to the exhibition center, representatives of several Russian exhibitors were also gathering together to watch the videos and pictures taken by TASS reporters.

Apart from China as the host, Russia is the most fully prepared for this Xiangzhou Air Show.

A typical example is that they also discovered that the rooftop of this hotel was the best vantage point for filming air shows, especially flight performances, and therefore contributed sufficiently complete and clear image data.

Correspondingly, their judgment of the current situation is much more reliable than the French.

“For a second-generation aircraft, the maneuverability, especially the vertical maneuverability, that this aircraft demonstrates is truly amazing.”

Although Bogosian witnessed the whole process of the J-8C flight show on site, the exhibition area he was in at the time was obviously not as good as the view in Xiaobailou. What's more, the camera also has the ability to zoom in and can capture some more details. s things.

"Look."

Pogosian paused the video tape being played in front of him, pointed at the wing of the aircraft that was circling in a small radius on the screen and said:

"This aircraft will open the leading edge slats to increase lift during low-speed flight. If I remember correctly, this structure did not exist on previous Chinese models."

"We can't see clearly the specific design of the slat structure from the video, but from the flight attitude and the timing of activation, we can still infer that the trailing edge of this slat should be specially optimized for low-drag orientation, so the available speed range It's relatively large, the speed of the aircraft here is at least 450km/h, but it can still be effective."

As the head of the Sukhoi design department, Pogosyan analyzed the J-8C's wing improvement principles almost as soon as he saw the video.

“Not only does the previous model not exist, Artyom Trusov and I have been working at the Aircraft Research Institute in Shengjing for more than a year, helping them optimize the flight control of the digital fly-by-wire stabilization demonstrator aircraft. .”

The speaker was Alexander Mosin, who had previously reported the flight performance of the J-8C to Sukhoi:

"The J-8C aircraft they showed this time has made its first flight several years ago. In fact, there is no similar design on the previous verification aircraft of this model. This slat seems... as if it suddenly Just as it was designed to be.”

"I think this is unlikely."

Since all the design work of the J-8IIACT has been completed, Trusov and Mosin, who have no work to do for the time being, were invited to Xiangzhou together:

"Almost all China's aircraft in the past were produced under license or copied from our models, and they did not have leading edge slat designs, so this should be a completely new attempt for them and will definitely require a lot of effort. Only test flight data can optimize such good results.”

"Mosin and I just happened to see that test flight. They must have been testing this new wing configuration for a long time. You must know that it was already September. If it was really a completely new design, it would be impossible. Putting it on the air show only two months after it was installed is too risky and completely inconsistent with the Chinese people's style of doing things."

"But……"

Mosin wanted to refute something, but was interrupted by Alexei Bulatov, who had not spoken yet:

"No matter how long it took them to use it, judging from the flight performance, the effect of this leading edge slat is quite good."

"However, no matter how excellent the aerodynamic design of the aircraft is, abundant power is the fundamental guarantee of maneuverability. So compared to the wing design, the power of this aircraft shocked me more."

As he spoke, he took out a stack of photos from his bag, then picked out one and handed it over.

This was taken by him in the China exhibition area. After the exhibition closed, he found a photo studio and had it developed in a hurry.

"I made some notations in Russian on it so you can take a look at the performance of this engine."

"According to the data on the exhibition board, the thrust-to-weight ratio of this engine has reached a level of 6.82, and the total pressure ratio is even greater than 18, indicating that it has a very efficient compressor."

"In addition, I also need to emphasize that the thrust-to-weight ratio calculation method used by China is similar to the French military standard. Compared with our and American standards, the calculation results will be lower. If we follow our calculation method, the thrust-weight ratio of this engine It should be more than 7.”

"Isn't that... almost the same as the RD29 engine on the MiG-33?"

The representative of the Tupolev Design Bureau who came to the exhibition took the photo with a look of disbelief on his face and stared at it for a long time:

"A turbojet engine?"

Bulatov nodded:

"If you only look at the thrust-to-weight ratio, it is like this. Although the common problem of turbojet engines is definitely still there, it is already extremely exaggerated."

"Is it possible that they inflated the data on purpose?"

It is basically a common practice all over the world to pour some water into the data during the export and display process. Moreover, the data written on the display board in the picture is indeed a bit too shocking.

Bulatov knocked on the table next to him:

"You have just seen the performance of that aircraft, especially the vertical maneuvering part. At medium and low speeds, you directly pull the stick to climb at a large angle, and then complete a 360° turning flight. Without sufficient power, it would be impossible. Such a risky endeavor.”

"So even if there is a certain false standard, the water content will not be very high. I even think that the data on this display board is probably true."

"It is not difficult to understand why when they introduced the Flanker production line, they had to ask us to approve improvements to the aircraft during the production process."

Pogo turned off the TV and sat back on the sofa next to him:

"Moreover, during the performance today, they played a little trick to make the maneuverability of this aircraft look as good as our Su-27, which stole a lot of the limelight."

"According to the schedule, we will have a flight show tomorrow. The previous plan was just to repeat the show this afternoon, but now we have to come up with something new."

The Su-27/30 will definitely be Sukhoi's main fighter for export revenue for a long time in the future. Pogosian's design department is still counting on the export of aircraft to generate funds to continue to support the design of new models, so it is impossible for him to accept being replaced by one. The second-generation aircraft stole the attention.

"Do you guys have any ideas?"

After hearing this question, Sergei Lozko from the Ilyushin Design Bureau suddenly lit up:

"If it is just to demonstrate the maneuverability of the aircraft, then just leave the Su-30 on the ground and only let the single-seat model with better performance carry light fuel to perform."

"But I have a better idea."