Chapter 540 AC139 helicopter, the key to entering general aviation!

the other side.

After chatting with Xu Yang that day, Chang Haonan immediately contacted Ding Gaoheng.

Of course, the matter is too big to explain clearly in just a few sentences on the phone.

Therefore, he spent a few more days writing a report on the entire research and development idea for GPS jamming equipment, and then found a time to personally deliver it to the Commission of Science, Technology and Industry for National Defense.

Ding Gaoheng's office is almost more familiar to Chang Haonan than home.

"This...is the GPS jamming device solution you called me a few days ago to tell me about?"

When Ding Gaoheng received the report, which seemed to be dozens of pages long, he was stunned for a moment.

Although he had seen the other party's amazing ability to sort out ideas before when he read the "Testing and Evaluation Method of Aircraft Engine Intake Distortion" also written by Chang Haonan.

But after all, the material was transferred to the Science and Technology Commission through a third party. In fact, no one knows how long it took Chang Haonan to write it.

So the impact is not intuitive enough.

But this time, Ding Gaoheng clearly understood that this heavy report in his hand was written by Chang Haonan less than a week ago.

"Yes, but this is so thick because it contains a lot of explanations and derivation of algorithms and content related to ideas. Just take a look at the ten or so pages of the final summary."

Chang Haonan said, taking off his hat and scarf and putting them aside, then sat on the sofa on the side of the office.

Ding Gaoheng, on the other hand, quickly took out his reading glasses from the drawer, put them on, and then opened the report he just got.

"Satellite positioning and satellite guidance have always been a concern for our country."

While scanning the lines of text in front of him, he said with some emotion:

"In August and September of 95, when the Bosnian War was going on in the Balkan Peninsula, our foreign personnel stationed in Sarajevo saw with our own eyes that the missiles launched by the US military were hitting wherever they were pointed. In two warehouses next to each other, three missiles could Hitting one of them together, the other one was not damaged at all except for some shock waves..."

"Later I learned that it was a total of 13 Tomahawk missiles launched by the USS Normandy cruiser. It was also the first time that a cruise missile with a satellite positioning system was put into actual combat. It really gave us a long-term perspective..."

"Since then, combating cruise missiles and preventing precision guidance have become compulsory training for units at all levels of the People's Liberation Army..."

Ding Gaoheng's attention was gradually attracted by the contents of the report, and he did not continue after saying this.

But what follows is self-explanatory.

Although the "New Three Attacks and Three Defenses" have been officially adopted as a systematic training content since 95, in the absence of insufficient technical means, the effects that can be achieved by relying solely on subjective initiative are always relatively limited.

At best, we can only achieve passive response strategies such as decentralized command, decentralized deployment, and enhanced camouflage to minimize losses when attacked.

As for resisting the attack...

There is indeed no such condition.

In fact, after the J-8C fighter jets were officially equipped with naval aviation, the first combat subject practiced by pilots was to use a radar with the ability to look down and shoot downwards combined with semi-active radar-guided missiles to intercept low-flying cruise missiles.

It is used to simulate the response strategy when an imaginary enemy uses a submarine to launch a cruise missile attack on our coastal cities.

It is enough to show that the People's Liberation Army is worried about these long-range precision-guided weapons at this time.

And if it is possible to interfere with the GPS system on which these weapons rely, even if it is only limited interference, it can greatly reduce the air defense pressure faced by the People's Liberation Army and important coastal targets.

"This equipment can also be integrated and installed on aircraft or vehicles?"

After seeing the scenario for the GPS jammer combat mode, Ding Gaoheng's eyes suddenly flashed.

"In order to ensure the confidence of the interference signal, this device has relatively strict requirements for the emission angle. In other words, the range of action is close to a cylinder, with a small area but a height close to infinite. In order to ensure the interference effect, it is best to be within a distance of The target is relatively close, and interference is even implemented in advance."

"It will be mentioned later that for targets such as cruise missiles, the best way is to use aircraft to carry out accompanying interference during the flight of the missile, inputting wrong altitude and position information to the target, and induce the missile to crash to the ground or into the sea in advance."

After saying this, Ding Gaoheng nodded repeatedly.

"So, if installed on a vehicle, it can provide accompanying cover for high-value targets such as battlefields and command posts. It is equivalent to supporting another barrier behind the original last line of defense of small-caliber anti-aircraft guns."

"In terms of the current strength comparison, reducing air defense pressure is to save the lives of soldiers!"

The further back he read the report, the more excited the expression on Ding Gaoheng's face became, and his flipping movements became much brisker.

……

"In other words, what you need now is a military GPS positioning receiver?"

After a long time, Ding Gaoheng put down the report without finishing.

It seemed like he wanted to watch it again from the beginning.

But I endured it.

"Not one."

Chang Haonan shook his head:

"The jammer needs to receive and analyze the positioning signal sent by the GPS constellation, and then it can be translated through the algorithm mentioned in the report."

"Considering that we currently do not have the ability to reproduce the original U.S. military equipment, we can only treat it as a black box for the time being, so... every jammer should need a military GPS positioning receiver."

Ding Gaoheng's originally joyful expression froze on his face——

It's hard enough to get one. Do you want to purchase it directly from the US military?

"It doesn't have to be a complete positioning terminal, such as weapons and equipment, or even satellite navigation modules on ammunition. In short, as long as there is a chip that can process the signal and be removed."

Chang Haonan explained it in more detail.

But the problem facing Ding Gaoheng did not become much easier.

"This kind of thing is definitely not something that our Science and Technology Committee can handle. I'll report it to the relevant departments first and let the relevant departments pay attention to it."

Ding Gaoheng scratched his head and sighed helplessly:

"Fortunately, your algorithm should be a unique skill. Americans should not pay too much attention to signal receiving terminals. Although it is difficult, it is not impossible. But the output may be subject to some restrictions..."

When he just read the report, his first thought was to equip every regiment and unit above the regiment in the army with a set——

If there really is a fight, bring the imaginary enemy to the same technical level as us, and then defeat them through rich experience!

But now it seems that it is a bit whimsical.

Of course, something is better than nothing.

Even if there are only a few devices, if they can appear in key locations, they can still play an unexpected role.

So Ding Gaoheng quickly regained his energy.

He put the information in front of him into the drawer, and then took out a folder from the filing cabinet behind him.

"Xiao Chang, there is one more thing."

"AgustaWestland, which has cooperated with us on the MA-60 project before, hopes to expand the scope of cooperation and jointly develop a new helicopter with Bingcheng Aircraft Industry Group."

"I communicated with Bingfei. They said that the new helicopter currently under development is part of the solution provided by your Torch Group, so this cooperation requires your nod and agreement to join the project."

Chang Haonan stood up and took the folder with some surprise.

For the straight-9 improved project, he only pointed out the direction at the beginning, and did not interfere too much later. It all relied on Professor Liu Hongbo's own performance.

Now it seems that it would be a good performance for a high-end helicopter giant like Agusta to proactively seek cooperation...

"AC139 helicopter..."

The Italians have not only decided on a name, they have even made renderings of the preliminary plan.

"A is Agusta, C is our China Aviation Industry Corporation, CAAC, AC139, which is jointly developed by Italy and China."

Ding Gaoheng explained from the side:

"The plan is for 15-18 seats, 6-7 tons, mainly for VIP transportation, medical rescue, search and rescue and other high-end markets. If we agree, the cooperation method will be based on the MA-60, and two final assembly lines will be built in China and Italy. lines to connect with the Asian, European and American markets respectively.”

"In addition, if the technology meets the standards, the Italian side can ensure that the proportion of Chinese suppliers will not be less than 30%."

"What do you mean?"