Chapter 261 Radar interference, electromagnetic shield!

While the two were chatting, they had already walked to the two wings that were placed on the shelf and had not yet been put back together.

"That's right, senior sister."

Chang Haonan stared at the wing in front of him for a long time, then suddenly turned around:

"When you modify these two aircraft, remember to enhance the data transmission capabilities of the electrical interfaces on the pylons."

After a pause, he added:

"If the space inside the old wing is really not enough, at least the two racks No. 3/7 should be specially upgraded and connected to the multi-function display in the back seat."

"Ah, of course there is no problem with this. There is still room for upgrading just two racks."

Compared with the previous situation where she was only responsible for the August 3rd Project, Yao Mengna is now responsible for a lot more work, and she can even be regarded as leading the overall situation together with Tang Changhong. Naturally, she has a much more comprehensive understanding of the modification situation:

"But if you specifically upgrade the pylon...are there any special ammunition that need to be mounted?"

In 1997, China's airborne weapon models were still quite poor. The only precision-guided munition currently available for the JH-7 was the YJ-50 missile with a range of 81km. Due to its poor ability to deal with clutter, it could basically only be used for anti-ship. During launch Previously, there was no need to communicate much data with the carrier aircraft.

In fact, the YJ-81 can even be launched without target information and try its luck after the terminal radar is turned on.

"Ammunition... more or less"

Strictly speaking, jamming pods should probably be regarded as equipment, but if we use a more literary term, it is not impossible to regard electromagnetic waves as invisible ammunition:

"If the thing we came here to test this time is built normally, it should be able to be installed on the JH-7."

"I know." Yao Mengna nodded.

"Senior sister, do you need any technical help here?"

Regarding the choice of electronic warfare platform, Chang Haonan couldn't help but ask.

"It's nothing so far. In fact, the upgrade plan we have decided on is very conservative. It is almost all the things you brought me to do in Shengjing before, so in general it is going well. According to the current plan , these two aircraft will be modified probably next month and handed over to the troops for trial use."

Yao Mengna had a touch of pride on her face.

If at the beginning, she chose to stay in Haojing in order not to be thrown too far away by Chang Haonan's footsteps, then after nearly a month of work, she has begun to have a deep understanding of the two aircraft that were born by her own hands. Some feelings arose.

……

The aerial test of the pod was carried out on the afternoon of the second day when it was cloudy but not rainy.

The main reason is that there are currently no corresponding transportation and storage standards for the engineering prototype. After it was airlifted to Haojing by a Y-8, it still needed to undergo a complete inspection, which was delayed for half a day.

After lunch, Chang Haonan finally saw the rather mysterious No. 713 electronic equipment verification platform at the end of the tarmac.

At this time, its nose was carrying a black radome. Judging from its appearance, it should be the 10 radar used in testing the J-1473.

It is also the model planned to be replaced by the JH-7A in the future.

However, Chang Haonan's pods do not need to occupy the most precious nose space. The small pod can be hung under the wing, and the large pod can be hung under the belly of the fuselage.

Chang Haonan, who had just finished the ground inspection, and other people were not far away watching the ground crew install the two pods on the Yun-7.

Compared with the test flight of the aircraft itself, this kind of electronic platform test basically does not pose much risk to the pilots, so the overall atmosphere is relatively relaxed. The three pilots shook hands with Chang Haonan and Guo Lin in turn, and then turned to board the plane.

As the engine roared, No. 713 left the runway dragging two faint lines of black smoke and gradually disappeared into the clouds.

Normally, for this kind of test, it is best to take off several fighter jets as jammed targets, so that the height and location of the test can be basically unrestricted to avoid affecting residents or other equipment on the ground.

But these days, there are only a few aircraft in China with beyond-visual-range combat capabilities, and it is definitely impossible to lend them out casually. In addition, Chang Haonan and the others have a very tight schedule, so in the end they had to use the name of joint air-ground training. Let the artillery sighting radar of a nearby anti-aircraft artillery regiment serve as the imaginary enemy of the "Blue Army".

After climbing to a sufficient height and entering level flight, aircraft No. 713 quickly turned its nose and flew northeast to the predetermined test zone in Hongnong City.

The anti-aircraft artillery regiment of the 47th Division of the 139th Army is stationed there.

At the same time, Shen Yan, the commander of the anti-aircraft artillery regiment, stood slightly nervously behind the command position, looking at the 18 Type 74 double 37mm anti-aircraft guns arranged in a semi-circle on the preset position in front of him.

This is equipment that other similar units in the Army can only covet.

Although the appearance is similar to the previous Type 65 Double 37, it has added a 1035 analog commander, a two-meter rangefinder and a 10-type gun sighting radar. The anti-aircraft gun itself is also equipped with a servo motor, which can automatically acquire and solve Target Zhuyuan does not need to rely on human power to drive the height machine and steering machine.

Apart from having to be towed by a truck and spending time setting up positions, it doesn't seem to be much different from those modern fully automatic anti-aircraft artillery systems.

Moreover, Shen Yan specially sent an anti-aircraft artillery battalion with the best training results.

In fact, he himself used to be the battalion commander of this battalion. Because he led the team to the top spot in a military region-level competition, he was promoted to deputy commander and eventually to regimental commander.

Although he had known for a long time that the actual purpose of the so-called joint training was to test the flight test institute, and the opponent was not the Air Force that he had always expected to compete head-on with, but whatever.

The army in this era was really tough. The anti-aircraft artillery regiment rarely even had the opportunity to practice target shooting. Most of the time they could only practice in the air. Now that there were live people flying real airplanes to practice with, Shen Yan couldn't help but wish for it.

Anyway, the fighting spirit of the commanders and fighters at all levels has been aroused, and he has promised that if the confrontation exercise is successful, the whole regiment will be given extra meals at noon tomorrow.

As the estimated exercise time approaches, Shen Yan raises his hand to look at his watch more and more frequently, and from time to time he also glances at the radar screen not far away.

Obviously, he was also a little nervous.

On the contrary, the working group of the Flight Test Institute who had been standing behind him had a stable mentality.

They are not soldiers. They are only responsible for faithfully recording everything that happens. They will not and cannot have Shen Yan's competitive spirit.

"Report, radar found targets, number 6, direction 34, distance 20km, altitude 1000, speed 350!"

The radar operator's loud report broke the silence inside the command post.

Originally, due to the existence of the automated command system, this step was not needed.

However, considering that there were flight test institute personnel at the scene who may not be able to understand the radar data, I still reported it.

"6?"

Shen Yan's expression froze and he turned back to look at the engineers in casual clothes.

The leader shook his head and said that our flight test institute did not have that many aircraft of the same type, and only one took off.

"TMD..."

After hearing this answer, Shen Yan knew that his radar was interfered with.

The operator skillfully followed the standard procedure, but it had no effect.

The target is only 14 kilometers away from the position.

"Calculate the various elements of all targets and let the rangefinder prepare for manual processing. Even if you are blind today, you will still be blinded!"

Shen Yan took off the hat on his head and held it in his hand, picked up the walkie-talkie with his other hand and ordered.

As a commander who has been rated as excellent by the entire army, he naturally has a set of things that he can adapt to changes, rather than a rookie who is at a loss without technical equipment.

The originally silent position suddenly became heated.

Soon, several targets on the radar flew into the extreme shooting range of the anti-aircraft gun.

It's a simulated shooting anyway, so you don't need to consider the damage efficiency. You can shoot as long as the theoretical range is sufficient.

The anti-aircraft artillery positions were organized in groups of three and conducted several rounds of firing under the command of radar.

The smooth cooperation between staff in different positions made Shen Yan finally look better.

But the good times did not last long, and observers reported that they did not see any targets flying over.

"Report to the leader, the radar shows that the target aircraft is in the air!"

The radar operator's voice sounded again.

It was obvious that all the six he caught just now were false targets.

"Quick, get ready to reload!"

"..."

However, as soon as he finished speaking, a small black spot appeared from the horizon in the 34th direction, and continued to grow in size in everyone's field of vision.

Observers with rangefinders in hand quickly reported the type of aircraft.

A Y-7 has a speed of about 350 and a slant range of about 3km.

At this time, Shen Yan's face turned completely pale——

If this was on the battlefield, and what flew over was not a slow transport plane but an attack plane, his battalion-level air defense position would probably be wiped out.