"We've gone into their 8 o'clock direction and they haven't spotted us." Hu Dazhang said: "Don't turn on the host radar first, let's use infrared to keep up with them." ”

"Roger." Chen Yongliang followed behind Hu Dazhang, without the help of the ground-to-air radar network on both sides, it was not easy for the fighter itself to intercept the other party's communication content, sometimes even if it was intercepted, but because it was not within its own frequency, it would be filtered out by the computer, so Hu Dazhang and Chen Yongliang had no intention of radio silence, so they followed Xia Yu and them.

Xia Yu and they flew in the air at a speed of about Mach 0.7, although Hu Dazhang and they could directly turn on the main fire control radar to lock Xia Yu and them now, but as soon as the host radar was turned on, the warning radar that was extremely sensitive to X-band signals would notify Xia Yu as soon as possible that they were being irradiated by the fire control radar.

In this way, even if the missile attack is launched first, Xia Yu and they still have a chance to get rid of the missile attack and turn around and form an aerial struggle with Hu Dazhang and them, which also means that Hu Dazhang and they give up the advantage of being discovered by the enemy first, unless they can knock down a plane on the blue side first, forming a 2-on-1 situation on the red side, so that the winning rate can be greatly increased.

Can't open the host and lock it with the fire control radar, it doesn't mean that Hu Dazhang and they don't have the means to lock Xia Yu and them, most of the modern missiles use multi-mode guidance, and the Thunderbolt 8 has two modes: microwave and infrared, and the infrared locking is a passive infrared guidance system that detects the infrared rays of the opponent's tail nozzle and determines the target information parameters, which can allow the carrier aircraft to lock the enemy aircraft without realizing it before the missile is launched, and the missile can even be launched without knowing the distance and speed of the targetAs long as the opponent is within range, the infrared guided missile can chase the infrared rays of the enemy aircraft to attack, which is a very good means of sneak attack in air combat.

However, in order to reduce the interference of background infrared clutter, the seeker of infrared guided missiles generally has a narrow instantaneous field of view, which is not satisfactory in searching for targets. In addition, in order to avoid the heat generated by the intense friction with the air, the seeker cannot work, and the flight speed is relatively slow, generally at a speed of about Mach 2.5 For modern supersonic fighters, if the missile cannot be launched at a close enough distance, it is easy to be accelerated by the target, which also obliterates the advantage of the infrared air-to-air missile being locked before launch without being discovered by the target aircraft.

"Laser ranging begins." Hu Dazhang is a long plane, and he will attack first, because he cannot use active radar guidance but can only use infrared guidance, so it is necessary to measure the accurate distance between him and He Changhai before launching an attack, because in order to know the course and distance of the target and judge whether the target has entered the detection envelope of the seeker, the carrier aircraft needs to first measure the range, and then judge the distance before it can start the attack.

Hu Dazhang and Chen Yongliang are planning to sneak attack and kill a wingman first, and then carry out a combined attack on the long plane, the ranging and locking are completed as scheduled, He Changhai did not find the situation 25 kilometers behind him, but now Hu Dazhang has no way to attack He Changhai, because the maximum range of the Thunderbolt 8 is only 15 kilometers, considering that the blue side may find the missile and accelerate the disengagement, they must be close enough before launching the missile to attack the target.

When fighting in formation in the air, the last plane in the position must look behind at regular intervals to confirm that there is no situation in his rear, and He Changhai naturally will not forget this, so he has been doing this.

Today's weather conditions are very good, the visual conditions are very good, if it is a large flight like a passenger plane, He Changhai can even find the other party 40 kilometers away, but the object is replaced by a smaller, and it is the same light blue painted fighter as the sky, it is not so easy to find with the naked eye, not to mention that Hu Dazhang They fell in height before approaching, putting themselves in He Changhai's visual blind spot, and He Changhai is even more unlikely to find Hu Dazhang and the two who are following him.

However, the principle of air patrol vigilance also includes the requirement to change the formation at a certain time period and carry out a 360-degree circling alert flight, the purpose of which is to increase the radar detection angle and avoid being tracked without knowing it. And when Hu Dazhang and the others approached to a distance of 20 kilometers, Xia Yu just gave the order to change the formation and began to make a U-turn.

"It's not good, turn on the fire control radar immediately and lock the launch." Xia Yu's change in their flight attitude was captured by Hu Dazhang's radar for the first time, and the steering of the fighter was so flexible that Hu Dazhang was almost certain that the other party had found himself on the radar.

Hu Dazhang guessed correctly, when Xia Yu just turned the direction more than 95 degrees, he found two targets only 25 kilometers away from him at the edge of the radar display, and at the same time, his warning radar suddenly sounded, and the other party had already begun to irradiate with fire control radar. Without the slightest hesitation, Xia Yu immediately pushed the throttle valve to the end, and at the same time threw jamming bombs, "Bang Bang Bang" more than a dozen jamming bombs in a row deflagrated in the air, emitting high heat and throwing chaff to interfere with Hu Dazhang's fire control radar and prolong the opponent's radar irradiation time, while Xia Yu was able to continue to complete the circling flight attitude, let himself and the other party form a head-on flight, reduce the radar reflection cross-section effect of his J-15, and also turned on the fire control radar and irradiated Hu Dazhang and them.

He Changhai also made the same reaction, but he had been approached too much by Hu Dazhang, not to mention that he had been locked by the seeker of the Thunderbolt 8 air-to-air missile under Hu Dazhang's wing at the beginning, and when he found that the situation was wrong, Hu Dazhang was just close to He Changhai within 15 kilometers, which is the maximum range of the Thunderbolt 8.

Pressing the launch button, since it was only simulated training, naturally there would not really be a missile launched, but in He Changhai's on-board computer, because the simulation training mode had been turned on, the airborne computers of the two sides were connected to each other, so he could still see an air-to-air missile flying towards him on the radar display.

At a distance of 15 kilometers, the speed of the missile quickly increased to Mach 2.5 after leaving Hu Dazhang's wings, and He Changhai immediately opened the afterburner when he found that something was wrong, and the speed broke through the sound barrier in a short period of time, reaching Mach 1.5, and the speed continued to increase.

Hu Dazhang originally planned to continue to launch a Thunderbolt-12 to ensure that He Changhai could be captured, but an X-band radar warning suddenly sounded in the cockpit to let Hu Dazhang know that the opponent's long plane had completed its U-turn and was ready to start attacking.

The phased array radar of the J-15 can track 15 targets at the same time and attack 6 of them at the same time, so whether it is Hu Dazhang or Chen Yongliang, they can only choose to maneuver to evade and want to leave Xia Yu's attack envelope.

In the air, after the red plane's long plane launched a missile, the blue wingman desperately rushed forward, and the blue plane's fire control radar irradiated, allowing the two red planes to fly directly up and down separately, which is also the inherent response method when the air formation combat is encountered by the enemy's fire control radar lock.

The attack envelope of one aircraft is only so large, if the two planes that are irradiated fly separately as soon as they go up and down, Xia Yu can only choose one of them to continue to pursue, and it is impossible to continue to pose a threat to both aircraft, this is the advantage of fighting more and less, because no matter which direction Xia Yu chooses to continue to pursue, the other plane of the other party can come back to support, forcing Xia Yu to give up the attack and turn to defense, the situation is actually very bad.