Chapter 1853: Su-27 improvements

Of course Qin Guan knew. Su-27's rickets were not completely overcome until Su-35. Therefore, people changed the model of Su-27 to Su-35, which is completely possible. .
Compared with the two, the Su-35 is more advanced, equipped with a phased array radar, a more powerful 117S engine, and an improved body structure. After focusing on improving the wings, the rickets of this fighter were finally solved. .
In the past, because of drilling holes in the beam, the maximum overload was only 7.5G in the most needed transonic range. If it is too large, it may cause the aircraft to disintegrate. What about the Su-35? The maximum use overload reached 10G!
Su-27’s rickets is definitely a heart disease of the Sukhoi Design Bureau. This is caused by the huge radar in the nose. If the radar is not too heavy, they don’t need to do such a job. Now, Qin When I said the words rickets, I was piercing Simonov's heart with a needle, and Simonov's old face immediately became ugly.
There was no such term for rickets before. Now, the title of Su-27 was given by Qin Guan. Unfortunately, the language of Xiong and Han is different. Otherwise, it has another title. It's Su-27.
Seeing Simonov’s appearance, Qin Guan was very proud of himself. He continued:
This aircraft is roughly similar in appearance to the MiG-29, but it is larger in size and the entire fuselage has a huge lift. In general, with this layout, there will be another problem."
Qin Guan looked at the Xiong Guoren present, and said firmly: "Its flight control design is a huge problem. If the design is not good, the pilot only needs to pull the control stick a little, and the fighter will lift his head completely. coming."
This guy is simply a devil, he actually knows everything? When Qin Guan said that, there was a sense of awe in Simonov's eyes.
That's right, the question raised by Qin Guan has been accompanied by the entire process of the flight test of the Su-27 fighter. Because of this problem, several prototypes of the Su-27 have dropped!
Especially, at the very beginning, they didn’t even know what was going on. The T-10-2, the second plane of the year, was flown horizontally by the test pilot Yevgeny at an altitude of 1,000 meters and a speed of 1,000 kilometers. It was time to do the impulse test. Pull the rod for a while, and the plane would get up with a swish, and then he pushed the stick, which induced the shock of the fighter plane. After a few back and forth, the plane disintegrated in the sky.
Where's the test pilot?
The steel plane was disintegrated, and the test pilot's body was flesh, and he couldn't stand the shock, and then disintegrated. After the accident, only one helmet was found.
Later they discovered that the plane was too flexible.
Of course, this problem is not only in the Su-27, but the F-15 fighter is actually a strange thing. The wings of this kind of aircraft are wide, but if you look closely, you can find that there is only one pair under the wings. Hanger! Compared with other fighters, it is definitely a weird thing.
Why is this? When McDonnell Douglas was working on it, it was discovered that as long as the pylons were added, the aircraft would start to shake, and it couldn’t be done. As a result, just click, let’s not add the pylons.
Therefore, the most advanced F-15 fighter of the Eagle State Air Force became such a commodity. Later, when the Happy Desert State spent a high amount of money to purchase the latest batch of F-15s, in order to add some gimmicks, Flicking the customer, Boeing promised to add a second pair of pylons.
At this time, 40 years have passed since the first flight of the F15 fighter jet. Adding a pair of pylons should be simple, right? It turned out that the wings were shaking badly. In the end, they could only postpone it for two years before it was done!
This makes Boeing's young designers very angry. These old men from McDonnell Douglas are really and they didn't discuss it!
The F-15 fighter jet was originally designed by McDonnell Douglas, but later McDonnell Douglas was about to go bankrupt and was merged by Boeing. How did the designers of Boeing know the past? This is the same as that of certain websites. The ashes code is the same, you must not move it, it will cause endless problems.
Now, Qin Guan still knows that a big problem with this Su-27 fighter is the flight control. The entire fuselage is an aircraft with a lift body layout. If you raise your head, it will be too fast. Can't control it.
Qin Guan's words were absolutely sharp, and every sentence was a direct hit, which surprised Simonov extremely. Qin Guan's vision was so unique, how did he know?
These problems are not a problem on the MiG-29, because the MiG-29 is light and small. On the Su-27, these shortcomings are magnified unlimitedly.
"President Qin, do you have any other good solutions?" Simonov asked, since Qin Guan said it, you might as well see what else he could say.
"This is of course a flight control. As long as you add boundary settings to the flight control, there will be no problems." Qin Guan said, "However, if this feature can be used, it might be possible to make this fighter. Has unparalleled mobility."
It's unstable, but it's precisely because of its instability that it has good mobility.
Simonov nodded, he was very happy to say that.
"Of course, if you want to further control, there is still a way." Qin Guan continued to say: "On the one hand, you can add a vector nozzle to the tail of the engine to control the vector propulsion of the fighter. This is to add a small canard to the front side wing to further control it. In this way, you can effectively use the advantages of the fighter itself and avoid danger. Of course, this is for flight control. A big test, after all, there are too many things to control, and all of them must be added to the flight control, so that it can really play a role. It is absolutely not the same as the MiG-23 fighter, which can only be controlled manually. "
Qin Guan's words made Simonov's eyes constantly shine, because what Qin Guan said was exactly what they wanted to do! The current Su-27 fighter jets have begun to enter the army in large numbers and are ready to serve. For the Sukhoi Design Bureau, the task has not been completed. Various modifications of this fighter jet are in progress, such as the double The trainer aircraft Su-27UB, for example, is an improved fighter-bomber based on it, and even a carrier-based aircraft that is modified for the Navy to take off.
These airplanes are all developed based on the Su-27, but in terms of performance, there is no completely reborn change. If you want to greatly improve the performance of this kind of airplane, you start from two angles, one is to use a vector engine, and the other Just add a front canard, turning this aircraft into an advanced fighter with a three-wing layout!