Siheyuan: I eat melons while doing scientific research

Chapter 1121 Today in History
HTPB is also a kind of high-energy propellant, but the way it achieves high energy is different. Although it is not as good as GAP and NEPE, resulting in lower performance, it is low in price and can be used even if its performance is lower.

Especially for tactical missiles with large production volumes, this thing is much more suitable than GAP at this stage. It's not that GAP cannot be used for air defense missiles, but it is a bit of a waste to use it on ordinary air defense missiles.

"Really?"

"Really? And this thing is much cheaper and can be used on all kinds of missiles." Gao Zhendong said with a smile.

What else can be used? The leadership of the Defense Work Committee is more spirited.

Countless facts have proved that what Gao Zhendong said can be used is really useful.

"Okay! I'll send someone to get you the materials later."

The leader is not worried at all about this thing, at least its possibility of success is very high!
Thinking of the possibility that countless tactical missiles could further increase their range or reduce their weight, the leader almost wanted to hum a song.

The next morning, Gao Zhendong carried his luggage and looked at the familiar planes at the airport.

"You are familiar with this thing, right? Haha, it may shake a little, but it is safe, very safe." The leader laughed.

The group got on the plane. Gao Zhendong didn't ask where they were going. It was a good thing to make the old kid happy.

He suppressed his curiosity, but his leader couldn't help showing off.

"Aren't you curious about what it is?" People are like this. If you ask, they may not tell you. But if you don't ask, well, they will get excited and you can't help it.

"You'll find out when you get there. Besides, there are rules and regulations, I understand."

Gao Zhendong smiled cunningly, knowing that his leader couldn't help himself.

The leader laughed and said, hey, he even knows how to use discipline to shut himself up.

However, he was the one who sold the secret, so he had to suppress the urge to show off, and he endured it even more painfully than Gao Zhendong along the way.

Gao Zhendong laughed in his heart, come on, let’s hurt each other.

The plane flew in the air for many hours. For safety reasons, it stopped at an airport to refuel and the comrades on the plane also took a rest. However, Gao Zhendong couldn't tell which airport it was. It was a military airport, and it didn't look like a civilian airport with a big sign.

However, Gao Zhendong could still see the terrain: the Loess Plateau, with yellow sand all over the sky. There was no Three North Shelterbelt Project back then. The Loess Plateau was really yellow, and you could tell that kind of terrain at a glance.

In the afternoon, the plane finally landed at an airport. Considering the approximate range he calculated based on the flight time and direction, Gao Zhendong felt a little excited.

Although there is no GPS, Gao Zhendong can still distinguish these general things.

No way? No way? No way? Could it be that place?

It was said that they flew for a long time, but this side was very far to the west and there was still some time before the sun set. The leader took Gao Zhendong into a car and drove to the destination.

As the GAZ-69 sped across the Gobi Desert, a cloud of yellow smoke rose up. Gao Zhendong became more and more excited. For him these days, the most special places were in the Gobi Desert.

On the distant horizon, a small black dot gradually appeared in his eyes. Even though there is a saying in the Gobi Desert that a horse will die if it runs high on the mountain, as time passed and the distance got closer, the small dot became clearer and taller.

"Beautiful! So beautiful!" Gao Zhendong couldn't help but shout.

The leader of the Fire Prevention Committee who was in the same car also laughed and said with a smug tone: "Haha, isn't it beautiful? Is it a good thing?"

"Great! Great! What great news!" Gao Zhendong was extremely happy. To be honest, he really didn't expect that his leader would ask him to go on a business trip just to see this thing.

The leader smiled and said, "You have played a great role in this guy being able to stand here. There are other rules that make it inconvenient for you to watch them live, but this is fine. I would feel bad if I didn't let you watch it."

What appeared in front of them was a tall iron tower, like a standing rectangular block. The dark green tower body looked thick and solid. In front of the tower, many pairs of iron frames stretched out, holding a long white shuttle in the middle.

It's a rocket!
The rocket is white all over, with a few black squares in the middle to facilitate observation and positioning, and the tip of the fairing on top is burning red.

On the arrow body are four big red characters, among which the word "Aerospace" is particularly conspicuous.

There are a few small black words below, "YZ-1", which is the model of this rocket.

There are many pipes connected to the arrow, and some white smoke can be seen in some places.

"Look, our Expedition One is about to go on an expedition!"

The leader of the Defense Work Committee looked at the arrow body glittering in the setting sun and the teams of busy soldiers under the rocket, and said proudly to Gao Zhendong.

What a familiar name! Gao Zhendong looked at the towering rocket and tears fell from his eyes.

He has done many things to change history, but this was his first time to witness history in person, and the surging feeling in his chest left him speechless.

"Expedition...what a good name...Expedition..."

Gao Zhendong looked at the rocket in front of him greedily, as if he wanted to engrave it all firmly in his mind.

"Let's go, Comrade Zhendong, let's go to the launch command center. We still have a mission."

"Task?"

"Yes, mission! Our mission is to witness this moment!"

Gao Zhendong, who was still feeling a little dizzy, turned around and entered a building with his leader.

Gao Zhendong couldn't remember how far he had walked or what he had passed by. He only knew that after twists and turns, he finally entered a hall. In the hall, in front of rows of surveillance cameras, there were comrades in white coats sitting, both men and women. Most of them were very young and energetic.

Their faces were filled with happy smiles and a little bit of nervousness.

Gao Zhendong and his team were at the end and highest place of the hall. Directly in front of them was a large display area consisting of various large LED digital tubes and signboards.

In the display area, there are monitors showing the real-time situation at the rocket launch site, but the screen size is not very large. In front of Gao Zhendong and his team, there are also several such display screens. Seeing the leaders of the Defense Work Committee come in, many comrades in this place looked over here.

A comrade came forward and said, "Leader, the launch commander reports to you!"

The leader nodded: "Thank you for your hard work. How is it going?"

"17: this afternoon is the selected launch window," the commander-in-chief reported.

"What about the weather?"

"Meteorological observations show that the weather is fine, the wind speed is less than level 1, and the cloud cover is basically zero, which is very conducive to observation."

"Have you arranged the observations and tests?"

"It's arranged. There's still half an hour until the scheduled launch time."

"What's the status of the satellite?"

"Online monitoring data shows that the satellite and the rocket are in normal condition!"

"Are all the plans ready?"

"It's ready. The fuel of this rocket can be stored for a long time, and the execution of the plan is not complicated."

"Okay, now it's up to you. Get ready."

"Yes!"

Gao Zhendong said nothing, but just looked at everything in front of him carefully. Even a small detail, he hoped he could remember it in his heart forever.

"Star and arrow test!" The commander-in-chief picked up the microphone and began to give orders.

After the comrades in front of the rows of monitors below completed the procedures in an orderly manner, the results were displayed on the computer screen of the test group leader below. On the color monitor, each indicator was very clear.

"The test results are normal!"

"The cables are detached and the umbilical tower is separated!" The commander-in-chief began preparations for the launch.

At the launch site in the distance, except for the necessary cables, the remaining cables were detached from the rocket body under the operation of the comrades. As the last cable was detached and all personnel evacuated from the tower, the iron frame holding the rocket on the umbilical tower began to separate to both sides.

The rocket's fuel is a combination of UDMH/N2O4, which can be stored for a long time. This makes the preparation of the rocket a lot simpler. At least during the few days of waiting for the launch window, there is no need to worry about problems such as refueling.

Soldiers wearing gas masks and chemical protective suits gathered around the launch pad, looking at the rocket standing alone on the launch site.

"Evacuate personnel!" The commander-in-chief issued the final preparation instructions before launch.

In early rocket launches, a torch was lit directly below the rocket nozzle, and the fuel and oxidizer were sprayed upward to ignite during launch.

That torch is not a special torch, it is just a wooden torch. If I have to say something, it is probably because the oil on it is of better quality and burns longer. It is just that hardcore.

However, this rocket does not need that. Once UDMH and nitrogen tetroxide are mixed, they will spontaneously combust without the need for ignition.

The comrades began to evacuate in an orderly manner, filing into the shelter far away from the launch site.

At this time, the rocket, which had been completely separated from the umbilical tower, appeared extremely bright in the sun.

Gao Zhendong held his breath and watched every move in the command hall and on the monitor in front of him.

"Final test!"

This is the last test, and the moment is coming.

"The test is normal!" The female comrade who reported the result had an unusually clear voice with a slight tremor.

The launch commander and the leader of the Defense Work Committee looked at each other.

"Twenty seconds to prepare!"

The bugler opened the protective cover on the rocket launch control button.

"10!"

"9!"

"..."

"0"

"ignition!"

The Rocketeer pressed the red launch button and there was a vibration with a low humming sound.

At the launch site, a reddish-brown smoke emerged from the bottom of the rocket. Soon, the smoke turned into flames and sprayed out with a rumble. The rocket was shrouded in reddish-brown smoke, left the launch pad, and slowly rose upwards.

Gao Zhendong felt a fire in his chest, but he did not take deep breaths to ease the feeling. Instead, he held his breath completely, staring at the rocket on the monitor that was slowly and steadily leaving the launch pad.

Looking at the scene in front of him, Gao Zhendong was thinking about another time in his heart.

——"On April 1970, 4, the Dongfanghong-24 satellite was successfully launched!"

(End of this chapter)