Although Qin Feng has been busy in Chengdu, it is almost three points and one line, dormitories, canteens, airports, and visiting the factory, which is also the first time in recent months, so Qin Feng has also seen this strange fighter for the first time.

J-7 FS.

It is the latest facelift of the J-7, from the cockpit to the rear, there is no difference from the original J-7, they are all exactly the same, however, the nose in front is very different.

Like this, what is it like? It's so ugly, like a strange bug with a special jaw!

"This aircraft was developed by us at our own funds, in order to be able to fly as soon as possible, so we used an ordinary J-7 2 modification, after all, we only verified the nose, and after the verification is completed, if there is an order, we will use the latest J-7E fighter to make such improvements." Lu Lao, who was responsible for the development of this aircraft, was Lu Lao of the 132 factory, and he proudly proclaimed in front of the guests of Lao Ba at this time: "The most important thing about this aircraft is to realize the need to replace the nose, and in the case of no need to change other cases, enough space has been left for the nose to install radar, so that the Jian-7 has over-the-horizon air combat capabilities." ”

In recent years, the 611 Institute and the 132 factory have been merged, but the original 132 factory design room is still retained, for them, the development of a new model, without this ability, even if it is Tu Lao, but also have to rely on cooperation with the outside world, but the modified J-7 is everyone's strength, so this modified J-7 appeared in such an alternative form.

It is not a belly air intake, if it is a belly air intake, it should be the rear of the front landing gear, open an opening, as an air intake, the air intake of this aircraft, still in front of the landing gear, forming an arc-shaped structure, on top, is the nose of the sharp cone, it seems, nondescript.

A mature aircraft should be a beautiful aircraft, but the one in front of you can't say that there is any beauty.

Qin Feng is also familiar with the internal structure of the Jian-7 fighter, and when he saw this aircraft, he understood that this was also done to minimize the change of the nose and save costs.

The original air intake, all of which were used, was only blocked by a circular air intake, turning it into two sections, the lower opening was larger, and the upper part was closed to install radar.

Even if it is a simple improvement, it is necessary to have systematic engineering, to blow the wind tunnel, to do all kinds of tremor experiments, and the factory to raise its own funds to develop this kind of fighter, naturally in order to sell it.

In order to save money to the greatest extent, it is inevitable to use the existing airframe to modify, but after Qin Feng saw it, he knew that Lao Ba would not be interested in this aircraft.

"I think this plane is very similar to a pirate." General Mill said.

Hearing his words, Lu Lao immediately nodded: "That's right, the improvement of the air intake of our aircraft is based on the similar jaw air intake of the American A-7 Corsair attack aircraft, and this improvement has two advantages. First of all, the volume of the nose is increased to facilitate the installation of high-power airborne radar; Secondly, the air intake efficiency when flying at large elevation angles is improved, so that the maneuverability of the aircraft is enhanced. ”

Now the goal of improvement is to try to increase the volume of the nose, in the past, the radar can only be installed in the air intake cone, so, a small ranging radar, or a simple Doppler radar, can be stuffed in, can only be said to be better than nothing, now, it is different, through the way of mandibular air intake, the space in the nose becomes larger, it can accommodate a larger radar.

"What kind of radar is this nose equipped with?" General Mir continued.

"Our current prototype is equipped with Israel's 2032 radar, of course, it can not only be equipped with this radar, but also other radars to choose from, radar antennas with a diameter of about 600 mm, can be installed in, such as the American APG-68, Russian Beetle radar, etc., depending on what you want, we will install it."

Israel used to be self-reliant and planned to develop the Lion fighter, but then gave up under the pressure of the Americans, and they also encountered a lot of problems, but they did not give up all, the airborne equipment was developed by them, and they also successfully developed it, including this EL / M2032 radar, after they developed it, they began to sell this radar all over the world, and even they have a pocket-sized version, which specifically reduces the radar antenna, which can be stuffed into the air intake cone of the J-7.

Now, it's up to you to see if there are buyers.

In addition to this kind of radar, there can also be other radar options, in short, this level of radar can basically meet the guidance needs of medium-range missiles and realize the ability to attack beyond visual range.

"If the nose is improved, the weight will also increase, right?" General Mir is really an expert, and he suddenly asked the key question, how is the mobility of you changing like this? When the dead weight increases, the maneuverability decreases, right?

"Yes, in order to compensate for the increase in dead weight, we replaced this aircraft with the latest turbojet-13 modified engine, which was improved on the original turbojet-13, and its maximum domestic thrust was increased to 78 thousand N, which belongs to the engine with the maximum thrust we can use at hand."

The domestic engine is also slowly improving, at the beginning, the use of turbojet-7, and later after the introduction of the MiG-21MF, surveying and mapping imitation, became the turbojet-13, in order to master this engine, also made great efforts, took a lot of detours, and later, the technology was finally fully mastered, and new means can also be used to improve, the maximum afterburner thrust of this engine, increased to 78 kN, compared with the previous turbojet-7 thrust of 56 kN, expanded a lot.

Qin Feng also sighed, if there was this kind of engine when the Super Seven project first started, even if there was no Sabre 2 plan, Tu Lao would probably have already made the Super Seven, and there was no engine with enough thrust at that time.

Now, the thrust of the engine has come up, however, the time has been delayed for more than a decade. Turbojet-13 has also become the last emperor, Lian is quite old.

This kind of engine can not only be installed on the current aircraft, but also can be used to improve the previous J-7, such as the latest J-7E, which will definitely be replaced with this engine.

The improvement of aircraft performance is also reborn.