Chapter 670 921
As if knowing their concerns, Gao Zhendong smiled and said, "You don't have to wait for that device. The instruction set and compatibility of that device are highly compatible with DJS-61. They are inherited, including the interface. There are not many places that need to be modified."

This is the benefit of developing on a common architecture. The Wintel alliance in Gao Zhendong's previous life was able to develop into what it was because of good compatibility. Although it came at a considerable cost, it was very beneficial at least in the early stages.

At least in Gao Zhendong's opinion, paying a price for compatibility is always better than paying a price for the interface.

As soon as Mr. Mo and the others left, Gao Zhendong couldn't help humming a song.

Hehe, if I can even figure out the laser gyroscope, then my ideas will be one step closer.
-

It is already October, and the weather is getting colder and colder. In the heart of the desert, the wind is chilly.

It was a night, and a silver-shining missile stood tall on a launch pad in the base.

It looks to be about the same size as the War Drum-1 launched more than a year ago, and even the appearance is not much different.

Soldiers in chemical protective suits were busy moving back and forth.

A group of people stood in the distance, watching the soldiers at work.

"This War Drum No. 2 has finally been made. I wonder what the result of this test launch will be."

The person who said this was Mr. Jin, the chief designer of War Drum No. 1 and War Drum No. 2. Next to him stood Mr. Cai, who was working on the engine, Mr. Zhang, who was working on the guidance system, and other subsystem managers.

This Mr. Zhang is Gao Zhendong’s senior at PBC College.

After hearing what the boss said, Zhang was very optimistic: "I am still optimistic about this thing, at least my part is so. This thing uses strapdown inertial navigation and the control system uses DJS-60DJ. Although the accuracy has not improved much, at least the weight of the inertial platform and control system has been saved and sent to Lao Cai to load fuel. In addition, the addition of strapdown inertial navigation has greatly increased the range of the missile."

The reason why War Drum One can't hit far, besides the problem of liquid launch, is that it is useless if it is hit far away and it can't hit accurately. Even its inertial navigation system is not perfect.

Even if the theoretical range is extended to 1500 kilometers, no one knows where the missile will land. If this matter is really discussed, Zang San will not be sleepy.

President Cai is also optimistic: "It should not be bad. At least there will be no problem in hitting the target in the hard range. The only problem is whether we can hit it with enough circular error probability."

Mr. Zhang was not happy to hear this. What does that mean? Don't forget, your rocket fuel was provided by my junior.

"Don't worry, we can still hit the 1000-meter circular probability. This is because the missile's range is not too far and the starlight guidance is not yet mature. Otherwise, it could be even better."

Although the 1000-meter error seems exaggerated, we have to consider what kind of warhead this thing was originally intended to be used for.

The original War Drum-1500 had an error of 3000 to meters. Based on this data alone, it was enough to become our first ballistic missile to be officially put into service.

In Mr. Zhang's hands, with full inertial navigation and the computing power of DJS-60DJ, he did not let his junior down and tried his best to reduce the CEP of the War Drum II missile to 1000 meters.

However, in terms of starlight guidance, the DJS-60DJ is still a little lacking, and with the range of the War Drum II, it seems a bit of a luxury to use starlight guidance.

At this point, General Manager Zhang said with a smile, "Old Cai, didn't you say that the new fuel for your engine can be stored for a long time at room temperature? Why do you want the soldiers to wear gas masks and refuel now?"

Unsymmetrical dimethylhydrazine is highly toxic.

President Cai didn't take it seriously: "Isn't this a full-process test? So let's start with refueling. Don't worry, we've done storage tests. This fuel has been stored on the missile for half a year without any problems."

Looking at these two comrades, General Jin was also smiling. Compared with War Drum No. 1, the biggest improvement of War Drum No. 2 lies in these two people, except that only one of the two warheads has been produced for the time being.

So they quarreled most frequently.

Time passes by every second, and the preparations are nearing completion.

A commander ran up to the group and said, "Report, the test launch has been prepared. Please give instructions!"

President Jin looked at his watch and gave the order: "Everyone evacuate and enter the bunker!"

"Yes!"

The commander picked up the walkie-talkie and gave orders. Soon, the soldiers near the launch pad formed several teams and evacuated in an orderly manner.

The sound of "click...click...click..." running gives people a feeling of inexplicably rushing adrenaline.

President Jin also led everyone into the semi-underground command post.

A report came from the radio that everyone had evacuated to a safe area and entered the bunker.

"Begin pre-launch testing."

Following Mr. Jin's order, each department got busy.

"XX system is normal..."

The same sound was heard again and again.

everything is normal.

"Prepare for launch, countdown!"

"10, 9...1, 0, ignition!" The female comrade who gave the time spoke in a steady and powerful voice, and the bugler pressed the red launch button.

The launch pad seemed to be frozen for a second, and then a large amount of brown-red smoke spurted out from the bottom of the missile, and the missile slowly rose into the air, dragging a streak of light, and flew towards the distant night sky. No one cheered or applauded, it had just taken off, and it was still early.

"XX tracking is normal!" A voice would be heard every few dozen seconds.

These are several radar stations along the way, tracking and mapping the missile's flight trajectory. Every normal sound means that the missile has flown several hundred kilometers.

These radar stations are all located in the uninhabited Gobi Desert along the route. For the purpose of missile test-firing, the comrades at the radar stations traveled thousands of miles to set up radars and stayed in these desolate places just for the occasional missile flying through the air.

More than 100 seconds later, a V-5 was hovering over the designated target area. The designated target area was very large and the missile's landing point was uncertain, so it was somewhat dangerous to place observers on the ground.

It was already night time, and by the time the missile arrived here, its fuel had already been burned out, making it very difficult to observe the landing point with the naked eye.

But the comrades on the helicopter were not worried, they had a secret weapon.

An observer was staring at a black and white monitor nervously. On the monitor, the Gobi Desert, which looked pitch black to the naked eye, was clearly visible.

This is an RX-61 line scan thermal imager, which was specially modified for this V-5 for testing.

Suddenly, a bright spot flashed on the monitor, and then a cloud of smoke rose from the ground.

"Here it comes!" said the observer happily.

This means that regardless of whether it is accurate or not, at least the problem of whether it is far away has been solved.

Under the guidance of the observer, the helicopter flew towards the impact point. At this time, the sound of the missile breaking through the air caught up and reached their ears.

As the plane flew, the observer on the helicopter reported the news of the missile landing to the command post.

After many forwardings, the message reached the launch base.

After listening to this, General Jin loudly announced to his comrades: "Comrades! Our War Drum No. 1700 test bomb has successfully flown a distance of kilometers and hit the target area!"

"Oh...Oh..." After more than 100 seconds of torture, the comrades finally breathed a sigh of relief and cheered.

Hats were flying everywhere at once, and this was the only thing that could be thrown without causing any problems.

There were also cheers coming from a few lonely little houses in the vast Gobi Desert.

President Cai was very proud: "Lao Zhang, I have successfully completed the task that was not far away. Now it is up to you."

The missile splashing down in the predetermined target area only proves that the range is sufficient, but the target area is very large and it is still unknown whether it is accurate or not.

Mr. Zhang didn't take it seriously. He was also very happy. No matter whether the error was met or not, at least there was no problem with the general direction of the guidance system, otherwise the missile might have been lost halfway.

Zang San: Eh? Who's calling me?
He was very confident: "Just wait and see, haha."

The comrades all laughed. At this point, the mission of this test bomb had actually been accomplished - War Drum No. 2 could really hit that far!
As for whether it is accurate or not, even if it is a little off, just change it, it's no big deal.

Just as everyone was rejoicing, the V-5 had already flown above the impact point, but was not in a hurry to land.

The pilot hovered the plane above the side of the impact point, and the observer operated a laser rangefinder and other surveying equipment to measure his position and angle with the impact point and center point respectively.

After entering some data into the computer, a number immediately popped up on the computer screen.

"920.8"!
The observer excitedly patted the plane's cabin wall and shouted loudly: "921! 921!"

The pilot barely heard the number amid the huge roar and laughed happily.

As the plane was descending, comrades from far away on the ground were driving towards us.

The news was quickly passed back to the command post.

In the command post, the only person who was suffering the most was General Zhang, because his system had not been fully verified.

President Jin received the report from the front, looked at President Zhang and laughed.

"920.8 meters! 920.8 meters from the bull's eye!"

"Wow..." All the comrades applauded and congratulated the designers who had put in countless efforts.

Amid the relieved laughter of Mr. Zhang, an encrypted telegram was sent to the Defense Work Committee.

"The first test launch of the War Drum II was a complete success, with a range of 1700 kilometers and an error of 920.8 meters."

The range of 1700 kilometers, or at least 1500 kilometers, is very specific and is not something we decide on a whim.

As we all know, our map is a big rooster. If we draw a circle with a radius of 1500 kilometers on the rooster's chin, or draw one on the rooster's foot in the west, or draw one on the snowy plateau, we can know which places can be covered.

Our research team was very restrained and did not conclude that the circular error probability of War Drum-1000 was less than meters. That could only be determined through a series of test firings and statistics of multiple missiles.

(End of this chapter)