Qin Xue didn't know that she owed Li Zhiqiang a lot to his family, and when they got married, of course they wanted to give birth to children, in this era, passing on the family is definitely the top priority.

However, Qin Xue can't take care of it, this is because since she was in college, she has participated in the development of airborne pulse Doppler fire control radar, she knows the great significance of this project, and she also knows how difficult this project is, for this project, she has no time to think about family affairs at all.

Beginning in 1980, the 1471 radar project was established, and the old man determined the appropriate technical route in accordance with the domestic technical level at that time, first developed medium and low repetition frequency, and then developed high, medium and low full waveform radar, even if the radar did not have the ability to install at the beginning, it was also a major technological progress, just like that, little by little research, in 1989, the 1471 radar was finally successfully tested, and the country finally mastered the technical difficulties of pulse Doppler radar, and later, after the development of this radar, Make persistent efforts to develop a full-waveform 1473 radar specially for the No. 10 project, and it was not until last year that the prototype was successfully developed, and now, the prototype is finally going to be installed on the aircraft.

There will also be a big problem in this, just like the J-7M at that time, the mature Marconi company's radar was introduced from abroad, and after it was installed on the nose of the J-7, problems such as fake interception have been plagued for a long time, and now, this advanced 1473 radar, after being equipped on the nose of the J-10, will there be problems? What could go wrong? It's all up to them to overcome.

The follow-up prototype of the J-10 will be tested in terms of radar, after all, a fighter is to fight, and without an advanced fire control system, no matter how good the airframe is, it is useless.

Happily welcomed a group of people from 14 institutes into the company, arranged accommodation, and ate, and the next day, their work began.

"We have already coordinated many times, but if we want to install the radar on the fighter plane and carry out a test flight, there will still be many difficulties waiting for us, and I hope that our comrades will guard against arrogance and rashness, race against time, and realize the installation of radar equipment as soon as possible."

Mr. Song personally attended the meeting and discussed with everyone.

"Yes, we request to enter the production line, coordinate the internal structure of the machine head as soon as possible, and complete the installation as soon as possible." Qin Xue replied. Fortunately, it is winter, and the factory is not as hot as summer, but the cold weather is also a challenge for everyone.

After Qin Xue finished answering, Song Lao continued: "We have now introduced the production line of the Su-27 fighter in China, and we found that the Su-27 fighter uses three fire control systems as a whole, in addition to the fire control radar, they also have helmet sights and photoelectric sighting devices in the nose, so, is there any prospect for such improvement in our fire control system?" ”

Song Lao is the chief engineer of the aircraft, but as the chief engineer, it is impossible to personally study every aspect of the aircraft, and his task is more coordination. As the chief engineer, coordinate the research situation of each subordinate factory, so as to obtain the best outcome.

The fire control system of the Su-27 is divided into three parts, and when coordinated, can it make the combat effectiveness of the fighter stronger?

Qin Xue shook her head: "No, at this stage, we don't think this plan is perfect, although it sounds very good, but in fact, it can't be played." ”

Qin Xue turned her head, looked at Qin Feng, and then said, "Comrade Qin Feng has flown over the Su-27 many times, let Comrade Qin Feng talk about it." ”

On this occasion, naturally it is impossible to call brothers and sisters directly, Qin Xue gave the right to speak to Qin Feng, wanting to hear Qin Feng's opinion.

"Actually, I am a test pilot and do not leave the army, so I don't have this right to speak, but I have communicated with many people, and they all think that there are still many problems with this fire control system." Qin Feng analyzed them one by one.

"The first is the helmet sight, this equipment can indeed allow the fighter to increase the chance of capturing the target in close combat, however, it is linked with the missile, that is, only the missile with a large off-axis launch angle can be closely coordinated with this helmet sight, otherwise, it is a waste, but for the missile, first of all, the seeker is limited, and secondly, the larger the off-axis angle, the closer the range of the missile, because the energy is wasted, so, the actual effect is limited, Rather than pursuing a large off-axis launch, we should allow our fighters to turn their heads quickly. ”

If the missile is to be launched off the axis, then it will have to turn around when it flies out, and when it turns the corner, a lot of energy is wasted, and the range is greatly reduced.

"Moreover, this helmet sight is very heavy, and many pilots feel uncomfortable after wearing it, so although the Su-27 fighter has been equipped in large quantities in the army, in fact, there are very few helmet sights in peacetime training."

Looking at the actual training of the troops, there is only that frame on the helmet, and after adding this sight, the tension on the cervical spine is too great, and when the high overload is high, it may hurt the neck.

Song Lao nodded, indeed, there are still these problems, the Soviets' helmet sights, with the R73, with our Thunderbolt-8, there is no need, because the off-axis launch angle is not large enough. Comrade pilot, it seems that he does not accept it very much, after all, it is necessary to pay more attention to ergonomics now.

"In addition, this infrared optoelectronic system, in order to ensure the combat capability under the complex electromagnetic interference, the actual effect, is not very good, in fact, the Tomcat fighter is equipped with the same type of device on the belly, in fact, almost not used, compared to these devices, we might as well better improve our radar anti-jamming ability, at the same time, waiting for the continued progress of technology, for example, can significantly reduce the weight of the helmet sight, improve performance, can make the optoelectronic device more sensitive and reliable, search distance is long, When these conditions are met, it's not too late for us to assemble. ”

Qin Feng replied clearly and clearly, those devices, because of the backward electronic system, the Soviets had to use a means of confrontation, their own radar, is more advanced than the Soviets, so there is no need to engage in these sideways, it is better to study on the radar, in fact, those devices of the Soviets, the operation is extremely cumbersome, in actual combat, there may not be a chance to use.

Qin Xue nodded with satisfaction, and then looked at Song Lao: "So, let's move on to the details of the radar?" ”

Qin Feng is really proficient, and he has analyzed these weaknesses very thoroughly, and he is worthy of being the most valued test pilot of the Air Force, a person who has flown a variety of models, and at the same time, he is also worthy of being his brother.