In the first heads-up confrontation, "Chenlong" sent a side super, and the away "Hongyan" sent a young player to fight.

Going to Beijing to participate in the competition, although it is also a popular team in the place of registration, there are also many spectators next to the track where "Hongyan" departs, but the atmosphere cannot be compared with that of "Chenlong", but for the players who have been in the battle for a long time, the external environment will not affect their mentality and performance.

Ge Fei, a young man who has recently joined the team and has less than two years of professional experience, is about the same age as Bian Chao, but in terms of seniority, he is still slightly inferior by three points, and the few materials collected by "Chenlong" show this.

In the national selection competition, since the ten teams participating are the top teams in each region, even if the strength of the teams in Xinjiang, Taiwan and Mongolia is remarkable, the number of well-known players on the field is relatively large, and there are relatively few young faces like Bian Chao and Ge Fei, after all, even if it is a strong team, it will not be able to train newcomers in the selection stage, and no one will joke about the right to qualify for IFT.

In the short time before the official start of the game, the huge screens in the live broadcast hall and outdoor high-brightness projection played the introductions of the two teams "Chenlong" and "Hongyan" in a loop, as well as the personal information of the two players, so that the audience has a minimum understanding of the two.

Ge Fei from "Hongyan", as soon as he entered the aviation competition world, he served in the team, which is regarded as a cutting-edge force from the intern step by step, from Chengdu, he has always specialized in CAC's previous generation of fist products - J-10 series fighters, and also emerged in the IFT Southwest Region Qualifiers. Won a rematch for the team. In the "Red Rock", where there is no shortage of strong players, it is a decent achievement.

Compared to Ge Fei, who is a little unknown in the strong team. Bian Chao's experience is much more complicated.

The scrolling display on the big screen made many people recognize this young man in his early twenties, but the reason is a bit funny, in fact, many viewers present did not have much impression of Bian Chao, but they could remember the group stage of the North China Regional Qualifiers, the "Chenlong" brother drove the "Raptor" and the "Uranus" Su-27SK fiercely competed, and the two sides finally used the aircraft gun to fight the winner and were sentenced to fall at the same time, this game is really impressive. Looking at the resumes of the players on the screen now, it reminds people of the situation at that time.

A former "Uranus" main force, in the rematch with "Chenlong" Liu Wei partnered, all the way through the rematch, the scene behind the game is naturally unknown to the outside world, for this young player who joined the "Chenlong" and played the whole game, many people look at the table of Bian Chao, thinking that he can win a first victory for the team.

Of course, because it is a home game, the majority of the audience naturally supports "Chenlong", but for such a high-tech sport as aviation competition. Fans are also more rational than many other projects, and there are also many viewers who think that "Red Rock" also has a chance. The reason is that Ge Fei of "Red Rock" has always specialized in J-10 fighters and has also achieved remarkable results in team events, so he should have some advantages over Bian Chao, who has replaced the model halfway.

Of course, whether it is a good past result or a fighter who is familiar with Cheng Dù, these can only play some auxiliary roles in the confrontation, and the real victory or defeat of the contest still depends on the player's performance.

The screen here is still scrolling, the time has passed eight o'clock in the morning, the first battle of the IFT China National Trials kicked off, under the unified Beijing time, located in the vast territory of five cities, ten teams have begun to catch each other, crowded Beijing Aviation Training Center, two J-10A "Raptors" with different livery from different areas of the runway to accelerate and slide, head high, in the navigation system and base tower under the dispatch of the predetermined airspace ahead, ready to carry out a standard situation under the one-to-one duel.

The schedule of the national selection competition, the number of competitions in each round is more, and the rules are indeed similar to the previous qualifiers.

The difference is probably the change from "two-to-two" to "one-to-one".

Heads-up between fighters is one of the standard items in the IFT competition system, and this kind of one-on-one combat with simple conditions and relatively idealized conditions mainly reflects the so-called "knight duel" in the traditional sense, which completely deviates from the integrated and systematic trend of modern air combat, but is highly respected by aviation competition enthusiasts.

Speaking of which, in fact, it is easy to understand, in the eyes of ordinary enthusiasts, the fierce battle in the sky, as a pilot piloting a fighter plane to fight to the death with the enemy, isn't the situation "heads-up"?

In addition, it has to be said that it can indeed show the outstanding technical strength of the players to the greatest extent, and it is also a measure of fighter performance, so whether it is from the perspective of preparation for important events such as IFT, or from the perspective of training players and testing fighters, the "heads-up" duel is very important to all teams, even the new "Chenlong".

After liftoff, each turned around, and the two J-10As flew according to the predetermined route, entering the predetermined airspace from two different directions.

The one-on-one field of the national selection competition, like the rules of the qualifiers, is still a circular range with a radius of 100 kilometers, the height is not limited, and the surface form is also very single and gentle.

On behalf of "Chenlong", he took the lead in the first selection competition, and entered the battle airspace at a speed of 800 kilometers and an altitude of 3,500 meters.

After entering the airspace, according to a set of combat ideas in the previous training, since the opponent is also a "Raptor", it is very similar to a large number of exercises on the simulator, Bian Chao further reduced the flight altitude, pushed the throttle valve forward to increase the speed to nine hundred, while peeking at the movement of the RWR, there was silence, sure enough, the player named Ge Fei of "Red Rock" was also more cautious, and he hurriedly turned on the radar to try to search as soon as he entered the battle airspace.

The radar of the fighter, there is always an approximate detection distance, for the J-10A 1473 pulse Doppler radar, the distance to find the RCS three-square-meter head-on target is about 80 kilometers, and the radius of the combat airspace is 100 kilometers.

When the radar is turned on, the RWR will immediately alarm, which is actually a unique phenomenon in the aviation arena, rather than the reality in air combat, and the RWR on the fighter jet has no such high detection ability for radar.

Generally speaking, most of the combat aircraft of the air forces of various countries are equipped with various types of radar warning devices, which are used to detect and sweep the electromagnetic signals of the aircraft, and once the radar irradiation is discovered, the sound and light signals are used to prompt the pilots, and the more advanced models can also preset electronic countermeasures to respond automatically.

However, this does not mean that once the aircraft is irradiated by electromagnetic signals, regardless of the frequency band, intensity, waveform and PRF (Pulse_Recurrence_Frequency, pulse repetition rate), the RWR will be non-stop, and then it will be useless - it must be known that the electromagnetic environment on the earth's surface is unprecedentedly complex, if it is so grassy, it is equivalent to the aircraft as soon as it lifts off, RWR will continue to sound after powering on, weather radar, Civil aviation control radar and electromagnetic signals from various ground radiation sources come one after another, which can make the radar warning system completely collapse, too many alarms equal to no alarm, which is naturally a problem that RWR system designers must consider.

Because of this, the RWR module actually carried on the fighter has a certain ability to analyze and process electromagnetic signals, and the typical setting is the most sensitive to the fire control radar, and the alarm will only be given when the signal that meets certain conditions is detected in the frequency band, waveform, repetition rate and irradiation power.

In this way, not only the signals of irrelevant radiation sources (such as base stations, civilian radars, etc.) on the ground and in the air will not trigger the RWR, even if the fire control radar of the enemy aircraft is irradiated, if the distance is too far, or the radar of the enemy aircraft is in the low threat mode such as VS and RWS, or although it is in the high threat mode - for example, the characteristic waveform is detected, but the parameters such as the waveform refresh rate do not meet the preset characteristics, and generally speaking, the RWR alarm will not be triggered, so as to truly achieve "no leakage" and help the pilot deal with threats in the sky.

With this in mind, in the combat airspace with a radius of 100 kilometers, if the radar search is turned on as soon as you enter the airspace, this is often allowed in actual combat, but it is an idiotic practice in the field of aviation competition.

The reason is simple, the fighters in the aviation arena, the RWR module are specially tuned.

Since it is a competition, not a real battle, the air combat environment of the aviation competition and the opponent's aircraft can be predicted in advance, the electromagnetic environment is relatively single, and the radar model of the enemy aircraft can be roughly determined.

Just like today's battle, the No. 04 J-10A piloted by Bian Chao also adjusted the radar warning system, which also has a contribution to Chen Chong, who is far away in Shanghai; According to the opponent of the first battle of the selection competition, several fighters of "Chenlong" have refreshed the RWR module, preset the 1473 type of J-10A configuration, and the 1491 type AESA radar parameters of the J-10B configuration, and the sensitivity has also been adjusted according to the corresponding model, and theoretically it is completely possible to find the head-on target aircraft that is far away 200 kilometers away and the radar is operating at full power. (To be continued......)