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.
"By the way, senior sister."
Chang Haonan stared at the wings in front of him for a long time, then suddenly turned around:
"You are modifying these two planes When doing so, remember to enhance the data transmission capability of the electrical interface on the rack. ”
After a pause, he added:
“If the space inside the old wing is really not enough, at least the two pylons No. 3/7 should be specially upgraded and combined with the multi-function of the rear seat. The monitor is connected. "
"Ah, of course there is no problem. There is still room for upgrading only two racks."
Compared to the previous one where I was only responsible for Ba San. As for the project, Yao Mengna is now responsible for a lot more work, and she can even be considered to be 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 racks, ...Is there any special ammunition that needs to be mounted?”
In 1997, China's airborne weapon models were still quite poor. The only precision-guided munition currently used by the JH-7 was the YJ-81 missile with a range of 50km. Because of its poor ability to deal with clutter, it could basically only be used for anti-ship. 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 your luck after the terminal radar is turned on.
"Ammunition... almost"
Strictly speaking, jamming pods should probably be regarded as equipment, but to use a more literary term, electromagnetic waves can be regarded as invisible ammunition. It’s not impossible:
“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.
"Sister, do you need any technical help here?"
Concerning 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’s almost all the things you brought me to do in Shengjing before, so overall it’s pretty good. Everything goes well. According to the current plan, these two aircraft will be modified and handed over to the troops for trial use next month."
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 air test of the pod was carried out on the afternoon of the next day when it was cloudy but without rain.
The main reason is that there are currently no corresponding transportation and storage standards for the engineering prototype. After being airlifted to Haojing by a Y-8 aircraft, a complete inspection was required, 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 1473 radar used in testing the J-10.
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.
Chang Haonan and other people who had just finished the ground inspection were not far away watching the ground crew install the two pods on the Y-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 around 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 speaking, 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 open space In the name of joint training, the artillery sighting radar of a nearby anti-aircraft artillery regiment was used as the imaginary enemy of the "Blue Army".
After climbing to a sufficient altitude and entering level flight, aircraft No. 713 quickly turned its nose and flew northeast to the scheduled test zone in Hongnong City.
The anti-aircraft artillery regiment of the 139th Division of the 47th 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 a piece of equipment that other similar units in the Army can only devour.
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. It can automatically obtain and solve the target elements, and there is no need to rely on human power to drive the height machine and steering machine.
Other than having to be towed by a truck and spending time setting up positions, it seems that there is not much difference from those modern fully automatic anti-aircraft artillery systems.
And Shen Yan also specially sent an anti-aircraft artillery battalion with the best training results in his hands.
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 is really tough. The anti-aircraft artillery regiment rarely even has the opportunity to practice target shooting. Most of the time, it can only practice in the air. Now there are live people flying real aircraft to practice. , Shen Yan simply couldn't ask 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 has been standing behind him has 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 target, number 6, direction 34, distance 20km, altitude 1000, speed 350!"
The loud report of the radar operator broke the silence in 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 on site who may not be able to understand the radar data, I still reported it.
“Six?”
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 model, and only one took off.
"TMD..."
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 for all targets and let the rangefinder prepare for manual processing. Even if you are confused today, you must 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.
Anyway, it is a simulated shooting. There is no 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's face 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 rang again.
It was obvious that the six he had just caught were all false targets.
"Quick, prepare to reload the ammunition!"
"..."
However, as soon as he finished speaking, a small black dot appeared from the horizon in the 34 direction. And it continues to grow in everyone's sight.
The observer with a rangefinder in his hand quickly reported the model of the aircraft.
A Y-7 has a speed of about 350 and a slant range of about 3km.
At this moment, Shen Yan's face turned completely pale——
What if this was on the battlefield, and what was flying over was not a slow transport plane but an attack plane? , his battalion-level air defense position may be reimbursed.
(End of this chapter)