The military-industrial scientific research system of the academic master.

Chapter 1322 The goal...is divided into two?

It should be said that Collinger's estimate of the shipborne radar detection range was relatively accurate.

The X51A has not undergone special stealth treatment, but the tangential cone waverider design itself will bring about a certain electromagnetic scattering effect. After all, it is only a small aircraft with a total length of about 8 meters and a diameter of about 0.7 meters.

For shipborne radar, it is not an easy task to capture its reflected echo from a distance of nearly 300 kilometers.

After detecting that the B52H completed the throwing action, the Jincheng quickly lost stable target tracking.

"Captain, the detection effect of the target has begun to deteriorate. Do we need to increase the transmission power?"

Bai Yao, the ship's radar director, turned around and asked Zhang Xudong who was sitting in front of the electronic chart table.

As the newest destroyer of the People's Navy, the electronic nautical charts on the Jincheng are much more advanced than those on the Long March 9.

Not only does it have richer target information and a higher refresh rate, but it also reserves relatively rich task interfaces, on which the fleet's air defense tasks can be directly commanded, and even the action paths of ship-borne helicopters and future unmanned combat boats can be planned.

"Forget it, let's not make things more complicated..."

Zhang Xudong looked at the bomber that had begun to descend and was about to turn, and after thinking for a moment, he shook his head:

"When the number of accumulated echoes is insufficient, simply increasing the transmit power will have limited effect and will also expose many unnecessary signal features... Maintaining the current quasi-continuous wave working mode and capturing target information is not our mission this time."

According to the radar echo coherent accumulation theory, after N target echoes are coherently accumulated, the signal power will increase to N square times, while the average noise power will only increase to N times the original.

Therefore, in order to make up for the lack of echo accumulation level through power, not only an exponential level of transmission intensity is required, but it will also bring about greater background noise. Even if the background of the current target is a relatively clean high-altitude environment, it is highly likely that the desired effect cannot be achieved.

Instead, it would be a waste of the opponent's passive detection equipment.

Although it is only a matter of time before the radar signatures are recorded as the number of ships equipped with 346 series radars increases and the two navies engage in more and more direct clashes, it is always better to be late a day.

"I don't know what the situation is like on the Long March 9..."

Political Commissar Lu Yuanjie paced back and forth behind the radar operating console, showing a rare bit of anxiety.

Due to the working characteristics of submarines, most of the submarine coordination training they conducted on weekdays was subjects that did not include combat content, such as allowing the enemy to use their own cover to pass through sensitive waters. Even if it was a little more complicated, it was just using the surface fleet to force the imaginary enemy into a pre-planned submarine ambush area.

Complex coordination like today's was only practiced once before setting sail.

Since it was the first test at the time, a helicopter was arranged as a communication relay so that both sides could obtain each other's work data in real time.

Now, in order to ensure concealment, the Long March 9 must be in a strict state of electromagnetic silence, so they know nothing about the situation hundreds of kilometers away.

It is even impossible to determine whether the other party has completed the most basic signal interception.

"Wait... Everything will become clear once we reunite..."

As he spoke, Zhang Xudong adjusted the background scale on the electronic nautical chart.

With their current position, when zoomed to the smallest possible, they can just include the coastline of the west coast of the United States.

Before setting sail last month, he specifically asked the fleet chief whether the fleet would need to continue carrying out other subjects of ocean training after the mission was completed to accumulate experience and data for similar missions in the future.

It actually implies whether we can go to a location further east.

But the superior is the superior after all, and he saw through his true thoughts at a glance.

Then he made it clear that they would reunite with the submarine and return home immediately after the mission was completed.

"It seems that we can only leave it to future comrades..."

Zhang Xudong sighed with some regret in his heart.

After returning from this trip, he will go to the senior commander training class for further studies and will be promoted to deputy commander of the destroyer brigade.

In other words, if nothing unexpected happens, this will be his last time leading a team as captain.

Although higher-level leaders still have the opportunity to serve as fleet commanders, in the Navy's tradition, this is a completely different concept.

After some emo, Zhang Xudong decided to change his mindset and think of something happy.

He once again looked at the US destroyer in the distance through the monitor:

"Oh, right, notify the signal department and tell them not to just wait for the other side to signal with lights, but also to remember to take a few more photos and send them to the fleet propaganda department after returning, so that they can criticize the Americans for obstructing our free navigation..."

……

Compared with the relatively relaxed atmosphere on the surface ship, the command cabin of the Long March 9 was much more tense.

After confirming that the X51A has been successfully ignited, they need to adjust the antenna angle, observe and record the movement of the aircraft body, and wait for the booster to fall off and predict its splashdown position.

From this, it can be decided whether to send the submarine itself or control the wire-guided UUV to go over and see if something useful can be retrieved.

At the very least, they can take some water samples, and then analyze them when they return, thereby criticizing the Americans for polluting the marine environment through tests.

It may not sound complicated, but for this temporary submarine radar department, dual-threaded work is already quite extreme.

At this time, the speed value in the target information column on the electronic nautical chart has reached an astonishing [3320].

"This is really... it's really fast..."

Han Xiangjie took a deep breath, his eyes became a little straight, and he almost cursed subconsciously:

"I never thought in my life that one day I would see four digits in this place..."

Due to its large size and the towering turtle back, the Long March 9 is not known for its speed.

But even the relatively fast Long March 7 and Long March 8 attack nuclear submarines have a maximum speed of only about 33-35 knots.

This 3320 knots is almost 100 times their number...

It was completely beyond his understanding as a submarine officer.

In short, even against the smallest scale chart background, the target track still extends forward at a speed visible to the naked eye.

When he first boarded the Long March 9, Han Xiangjie complained that this scale, which could almost be used as a world map, was completely meaningless.

As a result, I found out today that I was short-sighted after all...

After all, Fan Chaohui has been engaged in technology for so many years, although it is marine equipment technology, he is also well-informed:

"Let's wait and see. This is still the boost phase... After the scramjet engine starts, if the test goes smoothly, we'll probably be able to achieve about the same level..."

Although aircraft also use "knots" as the unit of speed in some cases, such exaggerated values ​​rarely appear.

So much so that Fan Zhaohui had to do a special calculation before he could say it:

"About 4000 knots."

Han Xiangjie didn't reply, but his thumb, which was resting on the edge of the table, trembled noticeably.

At this moment, the target detected by the radar suddenly split into two, one large and one small.

The larger part began to fall soon after separation, while the smaller one continued to fly along its original route.

"This……"

For a moment, Han Xiangjie thought that the other party had failed the test.

But almost at the same time, the voice of Xue Shijun, the radar manager, came from the communicator inside the boat:

"Report, the target booster has been detected falling off. According to the current trajectory, it will fall roughly in our 25 direction, 40 nautical miles away!"

Han Xiangjie had no choice but to suppress the smile that was about to appear.

"Compared to the flying body, the shape of the booster is more conducive to reflecting electromagnetic waves."

Fan Chaohui, who was next to him, planned the UUV's route while explaining to Han Xiangjie:

"So in the eyes of the radar, the smaller booster section is more obvious..."

Han Xiangjie was somewhat glad that he was not exposed just now, otherwise it would have been very embarrassing.

"I know……"

He concealed his embarrassment for a moment, then immediately changed the subject:

"Do you want to get your men on deck right away and get the UUV into the sea?"

Normally when underwater, the UUV can rely on power to separate from the mother ship on its own, but now that the Long March 9 is floating on the sea, it naturally needs someone to release it.

Operating unmanned aerial vehicles is the job of the navigation department, so everyone's attention shifted from the electronic chart table to the operating panel next to it.

The other few people changed into life jackets and climbed up the ladder behind the command module, preparing to leave the submarine hull.

All this trouble took about two or three minutes.

For a submarine, opening the hatch and going up to the deck is a big deal, and requires the captain Han Xiangjie to give the order personally.

This led him back to the chart table, ready to pick up the communicator.

So I saw it just right -

The flying object, whose signal was already somewhat weak, was split into two again, becoming two targets with extremely high echo intensity...

"Lao Fan."

Han Xiangjie's hand stopped in mid-air:

"This X51A... has a second booster?"