This is the Su-27M, a new upgrade program of the Su-27 fighter launched in the Soviet era, when the project was established in 83 years, probably when the first Su-27 combat was just put into service, a comprehensive and thorough improvement design was launched, and its span is large, probably similar to the early F-15A/B directly to the F-15E, so it is normal for this project to have a greater risk. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

In the end, no matter how this Su-27M battle is changed, the Su-35 and Su-37 have been tried one by one, but after all, it is inevitable to dismount, and the follow-up modifications of the Su-27 family, which are favored by the advanced technology verified by this model, are varied.

The Su-30MKK inherited the avionics, the Su-33 carrier-based aircraft inherited the aerodynamics, the Su-30MKI inherited the vector thrust, and the Su-34 inherited the engine technology after the additional thrust, so all the advanced technologies of the Su-27M were realized in various Su-27 improvements through small steps.

In this way, in the new century, Mao Zi was finally able to successfully complete the development of a new generation of Su-35 fighters according to the technology verified by these small steps, and although the new Su-35 combat capability is stronger than the previous Su-30/33/34 and other modifications, it is actually only the performance index proposed by the Su-27M project that year.

So now the question arises, this time the Air Force of the Republic directly demanded that the Su-27M target be realized in the domestic Su-27 localization, which might as well be said to be a request to start developing the Su-35 fighter in the nineties, and is this possible?

Yang Hui didn't believe it in his heart anyway, just this kind of request put forward by the army now, don't say it's Fengtian's side, even if you let AVIC Southwest operate it, it may not be able to complete it quickly, you must know that it is quite difficult to figure out the design without any research on the aerodynamics of the Su-27 series fighters before.

For his old classmate to take over such a challenging task, Yang Hui could only silently say in his heart, brother, you must lead the scientific research team under your command to work hard, as an old classmate Yang Hui can only help a little more, and there is really no big way to do anything else.

"A very challenging project, not to mention the design of the three-wing surface, even if I have not been in contact with AVIC Southwest, but if you need to cooperate, as long as there is no problem in principle, AVIC Southwest will try to cooperate."

At this time, it is no longer a problem for Yang Hui to take the subsystem through the back door, this has completely become AVIC Southwest doing its best to help the hard bones, and both of them understand this situation very well.

Without saying anything, the two laughed at each other: "Okay! What I'm waiting for is your old classmate's words, then I'll say it straight now, I can directly announce the problem of radar to you in advance, there is no problem in all aspects of the radar project brought by your company's optoelectronic detection system company, we discussed and compared with the Air Force, and it has been decided that the radar supply unit is the optoelectronic detection system company, and now on the whole, your radar is the best in performance and the fastest progress, so only it can meet the progress requirements of our localized Su-27. ”

This is good news, to be able to know the result in advance, this is always a good thing that people can put their minds at ease, and the rest of what you want to know so much, everyone still opens the road in the mountains and builds bridges in the water, as long as you can adapt to the situation, everything can be fine.

Although I guessed this result early on, I was still happy to hear the result now: "I can rest assured that the photoelectric detection system company can develop an early warning aircraft system, and there must be no problem in technology, and this radar has been researched many years in advance, and there will be no problem in general, but I don't know if you have any special requirements for radar?" ”

Yang Hui was just an unintentional remark, but he never thought that Wang Changqing would really take it seriously, and followed up with this stubble and raised an unexpected question.

"Okay, since you have taken the initiative to talk about the special requirements for radar, then I will take the opportunity to put forward the ability to detect stealth targets required by the army, which must involve the development of your radar system, is it possible to achieve long-distance detection of stealth targets now?"

To tell the truth, Wang Changqing did not have much hope when he said this, the detection of stealth targets has always been a big problem in these years, although the army has mentioned strengthening the detection of stealth targets by the Su-27, but in fact it has not made too many hard requirements for this, and now Wang Changqing is also only mentioned in passing, and it doesn't matter whether it succeeds or not.

But I don't know that the speaker has no intention of listening to the heart, and the detection of stealth targets has always been a big problem in these years, after all, the stealth target itself has not yet developed to a high level. At the tide stage, since the spears have not yet been fully developed and matured, the corresponding shield is naturally impossible to directly ascend to the sky in one step.

But who is Yang Hui, this is from 2010 onwards, at that time, the detection of stealth targets in countries around the world was still a small achievement, in terms of fighter jets alone, in fact, the best and most practical method is only one: dual-band radar.

In the future, warships at sea will evolve into dual-band in the development of shield ships, so that after enhancing the detection range, they can also more effectively counter stealth targets.

This involves an interesting technology that the previous face introduced on the new Su-35 fighter: fighter flap radar.

The so-called flap radar is actually very simple, mainly because with the emergence of active phased array radar, the shape and layout of the airborne radar antenna can be more flexible, anyway, it is composed of several small T/R component arrays, and it doesn't matter what the shape of the array is at this time.

It's no problem to use a circular array, this is a more conventional fighter nose radar layout, but there is actually no problem with changing it to a rectangular array, for example, Maozi did this, directly according to the shape of the closed box segment inside the leading edge flap of the combat Su-27 family, and was stunned to stuff more than 100 L-band T/R components into the flaps.

This is fun, install a conventional X-band fire control radar in the nose to meet the most basic multi-functional needs, and install a special-shaped array L-band active phased array radar in the flaps, so as to unexpectedly realize the detection and vigilance of stealth targets.

The L-band radar is more suitable for long-distance detection and alert, but because of its wavelength, it is not suitable as a fire control irradiation radar, so the fire control radar is generally an X-band radar.

When designing stealth fighters, although it is claimed to be omnidirectional, full-band radar detection stealth, but in fact these are blown, the real stealth fighter mainly focuses on the stealth control of the X-band, although there is also a certain stealth effect on the radar of other bands, but this guy is not a bad body, with the L-band radar surprise under a photo, there can be a good detection effect.

And this is why the Air Police 2000 and Ferkang, which also use the L-band, claim to be able to detect stealth targets at a long distance, which is not only because of the high radar power of the AWACS aircraft, but also because the radar wave of the L-band also plays a great role.

Now, the L-band T/R component can be purchased directly from Changhong, and after the mature T/R component, the development cycle of the flap active phased array radar will be accelerated, and then it can be done in accordance with the new Su-35 in the previous face of Maozi, and the domestic Su-27 will also be equipped with such good things, which can naturally achieve effective detection of stealth targets. (To be continued.) )