Using radar to guide missiles is simple to say, but it is difficult to implement, and the country has not overcome the complex technical problems in it until now.

If you want to attack the enemy, the first step is to search for the target, at this time, the radar is pulse wave, the pulse signal is radiated in the air, once the enemy is found, it will be reflected back, received by the radar, and the transmitted signal is compared, you will know the various conditions of the target.

What happens after you find it?

If you want to attack, you need to continuously shine a continuous signal on the target, at this time, the echo reflected by the target is the strongest, and only this echo can be received by the missile's seeker.

Today's radar-guided missiles are almost all semi-active radars, and the missiles only receive radar waves, do not emit radar waves, and are completely irradiated from the carrier aircraft.

This is the reason why the radar needs continuous waves, even on the radar of the F-4 fighters, there are continuous wave irradiators, which can guide the Sparrow missiles at medium range, but the radar of the F-16 does not, because they feel that it is not necessary, for them, it is enough to engage in close combat, medium range air combat, that is the task of the F-15.

This is also the case on warships, even if it is the Aegis warships of the Americans, they advertise that they rely on four-sided phased array radars and have the ability to carry saturation attacks, but they still have the limitation of firepower channels, because warships must also be equipped with special target irradiation radars, so that the number of targets attacked at the same time is affected by the number of irradiation radars, and the Chinese Aegis used in China uses active phased arrays, and the radars themselves can transmit this kind of continuous waves, so there is no such burden.

If your own fighter wants to choose this F-16 radar, then it can't guide the medium-range Sparrow missile, right?

Since the radar is chosen by the Americans, the supporting missiles must also be Americans, because this is the most convenient.

"That's a good question." Mr. Gu continued to explain: "If it was an early model, it really didn't have this ability, but now, the latest radar provided to us already has the ability to guide the Sparrow missile, and it does not have a special continuous wave irradiator, but the radar can have a high pulse frequency mode, which is enough to provide target irradiation for the Sparrow missile." ”

The F-16 is divided into multiple versions, if you divide it in a big way, the main difference is between A/B and C/D, among them, the front is a single seater, and the back is a double seater, all of which are in the same batch.

And if it is subdivided, from the original block1 to block20, even if it is a model of A/B, starting from block25, it is the later model, and in the US Air Force, it has been receiving this new type of fighter since 1984.

It does not have a continuous wave irradiator, but after the radar processing system has been replaced, not only low pulse and medium pulse, but also high pulse mode, because the frequency of radar emission is quite high, almost no different from continuous wave, and it can naturally provide irradiation.

This is the result of technological development.

Of course, if the Americans want to export fighters, they can export them selectively.

After hearing Mr. Gu's explanation, Qin Feng had no doubts, and it seemed that if it was introduced, the Sparrow missiles could also be introduced together.

However, this does not conflict with the missiles introduced from Italy, because they are all very similar and can be used with a little improvement.

"The second major piece of equipment is the inertial navigation system." Mr. Gu then began to introduce.

Originally, when the J-7 was improved, it was planned to be introduced, but later due to the small body of the J-7, there were too many negotiation projects for Tu Lao at that time, and he was too busy, so it was not introduced, and it became a supporting project of the J-8.

The significance of the inertial navigation system is too great, if you didn't understand it before, when Qin Feng went to fly the Phantom 2000, he could feel the advantage, which was just like having a navigation system in later generations, and everyone could recognize the way.

"In the United States, the inertial navigation system is mainly produced by Litton, and their LN-39 inertial navigation system is the standard inertial navigation system of the United States Air Force, with a positioning accuracy of 0.8 nautical miles per hour.

Navigation is just a component, this component must be placed in the system to work, such as GPS, it is just some satellites in space, the transmission time signal is only, there must be a ground receiving component, but also have the corresponding software, such as Baidu, AutoNavi, in order to play a role.

At the same time, there should also be corresponding display equipment, head-up display, multi-function display, all of which should be introduced synchronously.

Although the function of the inertial navigation system can be more obvious in ground attack, it is obvious that this is something that the United States will never provide, and they only provide it for its own interceptors to intercept Soviet bombers.

"In order to link all kinds of advanced airborne equipment together, we must also introduce 1553B data bus technology at the same time, and our J-82 fighter will become the first fighter equipped according to Western electronic standards." Mr. Gu continued.

"If it is improved in this way, our J-8 will definitely be like a tiger with wings, make up for various shortcomings, and will become a sharp knife of the Air Force."

Qin Feng spoke quietly this time, only General Lin on the side could hear it, it can be seen that General Lin is also very excited, after all, this kind of over-the-horizon interception capability is the most urgently needed by the Air Force, if there is no advanced avionics, then the J-82 is blind, in complex meteorological conditions, even the territorial air defense can only rely on the old Hongqi 2 missiles!

Now, it's finally time to change the shotgun!

"We first have to select all kinds of equipment, and then we have to find a company from the United States to modify our fighters and install these systems." Mr. Gu then introduced.

Hearing his words, Qin Feng's face suddenly changed: "What? Let the Americans transform our fighters? ”

When he heard the front, Qin Feng has always been very happy, the introduction of these modern avionics equipment is of great significance to the J-8, the J-8 can finally become an excellent fighter for the motherland's air defense!

But what about now? Qin Feng heard a condition that he couldn't believe, his own fighter plane, handed over to the Americans to change?

Now the Jian-7 CP is only a foreign trade project, and everyone is trying their best to fight for it. J-8 is the sharp knife and fist of the Air Force, and it is actually necessary to let others change it?

Psychologically, Qin Feng is absolutely unacceptable, although the second-generation aircraft like the Jian-8 is backward, but in China, it represents the highest level at this stage.