Bright Sword: Starting from the Improved Grenade

Chapter 126 Rocket launcher?

Two days later.

In the training ground in the back mountain, Zhao Tianyang poured the liquid fuel he had just made into the 107mm steel gun barrel that Li Yuncai was holding.

Then, before the liquid solidifies, insert a wooden stick in the middle.

Pay attention, apply oil on the wooden stick to prevent the fuel and the stick from sticking together.

While the liquid fuel solidifies, the stick should be rotated from time to time.

After the fuel solidifies, take out the wooden stick, find a basin, add epoxy resin (this thing was mentioned before) and curing agent (made of primary amine and carbon disulfide) into it and mix them.

Then gradually add cement powder, stirring the contents of the basin constantly until the mixture becomes a thick paste.

Finally, insert the wooden stick again into the hole in the middle of the solid fuel.

Pour the epoxy cement mixture just made into the head of the barrel. After the epoxy cement solidifies, take out the wooden stick. The nozzle of the rocket is now ready.

Then use epoxy cement to plug the other end of the barrel.

In this way, after the rocket engine is ignited, the flame will burn in a circular shape, generating the kinetic energy of a high jet, thereby generating more powerful thrust.

"Bring the launcher over here!"

Zhao Tianyang said excitedly as he patted the completed rocket engine.

"I'm coming!"

Li Yuncai brought two workers and carried over a single-barrel rocket launcher with a tripod.

Zhao Tianyang placed the rocket engine into the launch tube, took out a match and lit the fuse at the tail.

“Shh….”

When the fuse burned out, there was only a short and sharp "whoosh" sound.

The rocket engine burst into huge flames and flew out of the launch tube, heading towards the target one thousand meters away.

With a slight "bang" sound, the target shook twice but still stood firmly in the training ground.

"Missed?"

Li Yuncai, who was observing through a telescope, said in surprise.

"Go check quickly to see how big the error is!"

Zhao Tianyang disagreed. Rocket launchers are not famous for their accuracy.

Li Yun quickly ran to the location of the rocket engine, measured the distance to the target with his footsteps, and ran back to say to Zhao Tianyang.

"Chief, the error is quite large! It's a full 10 meters off!"

"10 meters?"

Zhao Tianyang smiled and said, "Very good, that means it is a success!"

"what!"

Li Yuncai scratched his head and said, "Is this successful? Is a 10-meter error okay?"

"Why not? This is a rocket launcher with a grenade as its warhead. The killing radius should be at least 12 meters. A mere 10-meter error is nothing!"

Zhao Tianyang waved his hand: "Hurry up, continue the test."

"Oh!"

Li Yuncai nodded, reloaded a rocket engine, and lit the fuse.

With a "hiss" sound, the rocket engine made a "whoosh" sound and flew towards the target two thousand meters away.

After testing, the rocket engine was found to have an error of less than 4 meters at altitudes between one thousand and four thousand meters.

With a maximum range of 60 meters, the error can only be maintained at meters.

But it’s not a big problem. As I said, rocket launchers have never been a type of artillery that relies on accuracy to win.

"Go back to the factory and get the grenade heads out."

Zhao Tianyang patted Li Yuncai's shoulder happily.

...............

"Chief Zhao, Yan'an has replied."

As soon as I returned to the factory, the deputy chief of staff came to me with a smile on his face.

"So fast?"

Zhao Tianyang was a little surprised. It’s only been a few days?

"Fast?"

The deputy chief of staff was puzzled and said, "This is already slow enough. If it weren't for the meeting in Yan'an, we would have received the results a day ago."

"Don't you know that with the delta-wing glider, the time we have to communicate with Yan'an has been greatly shortened?"

"Blame me!"

Zhao Tianyang slapped his forehead, thinking only about how far this place was from Yan'an, and forgot that they had already developed an air route.

"What did the chief say?"

"What else can I say? Of course I agree with everything!"

The deputy chief of staff pointed to a pile of oil drums that had been placed in the corner of the engine factory and began to preach.

"Yan'an also sent you a lot of gasoline, diesel, lubricants and other items."

"I also ask you to send someone to Yan'an to instruct them on how to build a factory. The leader said that you have the final say on what kind of factory to build and how big it should be."

"Great!"

Zhao Tianyang said happily: "I will go back and write a plan later, and then choose the right person to go to Yan'an."

"it is good!"

The deputy chief of staff nodded and was about to leave, but he was a little surprised when he saw the rocket engines and launch tubes held by Li Yuncai and others.

"Is that a cannonball? Why is it so big?"

"Oh, that! It's a rocket engine. I'm going to use it to make a rocket launcher."

Zhao Tianyang responded casually while thinking about what kind of factory to build.

"Rocket launcher?"

The deputy chief of staff widened his eyes. He was not Li Yuncai and didn't know what a rocket launcher was.

He was very clear about the difficulty of making and the power of this thing.

In the minds of various countries, rocket launchers are artillery with fast firing speed, fierce firepower and good mobility.

Unfortunately, up to now, he has not seen a country that can produce a rocket launcher that can be used normally!

Can our Eighth Route Army make this thing?

Shouldn't this thing be a weapon with high technological content?

"Wait a week and I'll show you what the finished product looks like!"

Looking at the dazed deputy chief of staff, Zhao Tianyang grinned.

"Then I'll wait and see!"

The deputy chief of staff left the arsenal with mixed feelings.

If he wasn't afraid of disturbing Zhao Tianyang's work, he really didn't want to leave. He had to see on the spot how this rocket launcher was made!

"Go and call Comrade Liu Ding and Liu Guifu over!"

As soon as the deputy chief of staff left, Zhao Tianyang immediately gave instructions to Li Yuncai.

Zhao Tianyang decided to let someone else research the warheads needed for rocket launchers.

He was going to go back to the tent and think carefully about what kind of factory he should build so that he could cooperate with Huangya Cave.