"I was going to go to the workshop, but I saw the situation here......" Liu Yue said this, paused, and saw Xu Minghui's disapproving face, knowing that he wouldn't listen to anything he said, "Mr. Xu, I really need to think about this matter, so as not to get a problem......

Liu Yue was worried, but he couldn't help it.

"Don't worry, there will be no problem, everyone wants to get it out as soon as possible, with results, there can be a future, and we have to recover the lost time......"

Seeing that Liu Yue no longer said this, Xu Minghui breathed a sigh of relief.

He was afraid that Liu Yue would be dissatisfied.

When the people from Factory 2109 came here, they didn't have any good intentions.

On the surface, he didn't do anything, he didn't show any dissatisfaction, he worked hard, except for drinking water, eating and going to the toilet, he never left the design room, even if there was any problem, he just whispered to the personnel of their unit, as if the people of the 2186 factory did not exist.

As a result, the technicians of the 2186 factory were even more angry.

The project originally belonged to Factory 2186, but if it weren't for Liu Yue's request that it must be solved as soon as possible, there would be nothing to do with Factory 2109.

It's good now, I'm actually here to dismount the people of 2186.

Who can stand such a result?

Liu Yue also knew that the contradiction between Factory 2109 and Factory 2186 could not be solved by him in a few words.

Fortunately, it is only a small project cooperation at present, and it is also a good thing that the technical personnel of both sides have passed the run-in at this stage.

Otherwise, if he engages in large-scale projects in the future, such as the 273 multiple rocket launchers, or really engages in ship-to-air missiles such as the Hongqi-61, the contradictions between the two sides will erupt again, and he will not want to do any work.

"Liu Yue, why did you have time to come here?"

Zhao Deming knew that Liu Yue was very busy these days, and he didn't even go back to the data room, let alone the single dormitory where he didn't live for a few days in Factory 2186.

Seeing Liu Yue appear in the workshop, I was a little surprised.

"Director Zhao, the tail flame spin engine has been assembled, right?"

"Last night, I rushed to work overnight, and the samples of the three engines were assembled and debugged. You can start the experiment on the test bench today......" Zhao Deming walked to the inside of the workshop with Liu Yue and introduced the situation to Liu Yue. "You have to thank you Wang Jinde and them, they have been working overtime overnight for the past few days, and they have hardly returned home, there are many tasks in this workshop, and all the equipment is running non-stop, which is all your credit......"

Zhao Deming was grateful to Liu Yue.

Without Liu Yue's design, there was basically no work to be done in the workshop.

"It's natural, without their efforts, they wouldn't have done it so quickly. Many parts on this engine are special-shaped parts, using stamping, relying on molds is easy to achieve precision, and the technical requirements for machining are indeed too high......"

Liu Yue naturally knows how high the requirements for machining are in his design.

Many designs were originally designed to be mass-produced, and the use of molds will reduce the difficulty and cost of processing a lot.

Special-shaped structural parts, forging and extrusion through dies, are relatively easy.

The use of metal cutting and processing, in the era when there is no CNC machine tool, the difficulty will be many times.

When Wang Jinde saw Liu Yue coming in, he directly twisted his head to the side.

Du Chengguo and others lost their enthusiasm before, but they were not as direct as Wang Jinde behaved.

"Vice President Liu, how can you be a busy person to come to the workshop?" Wang Mingming, a workshop technician, greeted him.

There was a joke in the words.

"Xiao Wang, what are you doing with yin and yang!" Zhao Deming glared at Wang Mingming, Wang Mingliang was still smiling and not angry.

"Brother Wang, the level of your ridicule hasn't increased!"

Wang Mingliang heard Liu Yue say this, and the smile on his face was even bigger, "Aren't you the vice president of our factory?

There's really nothing wrong with it, it's just that there's a distance.

Liu Yue knew why, but he couldn't explain it.

"Three samples of the tail flame spin engine have been produced, when will the experiment be?"

For the experiment of the tail flame spin engine, the workshop line is naturally not clear about the experimental method.

Liu Yue knows it in his own heart.

"Didn't you produce a few model bombs? Directly use that to fill the inside with fuel, and then put the model bomb on the test bench to determine the various data when the engine is working......

The experimental method is simple.

The engine experiment does not require the entire model projectile, as long as it can detect various data of the rocket's progress and rotation during the flight in the air.

The efficiency of the engine and the thrust generated must be tested first.

In this way, it is also possible to verify whether there is any difference in the flight speed and trajectory of the rocket designed in theory.

After the verification of these technologies is completed, and the experiments on the aerodynamic layout of the projectile are completed, the telemetry bombs of each system will be produced with telemetry equipment that collects the working data of each system.

The study of rockets is really no different from that of missiles.

After the tail flame spin engine was produced, Liu Yue naturally wanted to express his gratitude to several masters in the factory.

But Wang Jinde still didn't give him a good face.

Liu Yue didn't bring an engine, so he explained to Wang Mingliang and others, and asked Zheng Jianguo and the two to go to the headquarters to find Jiang Zhihe and others, and asked to start the experiment immediately.

"It came out so quickly. Your efficiency is high enough!" Jiang Zhihe was a little surprised.

There was no joy on his face, afraid that something would go wrong.

The headquarters organs have been holding meetings in the past few days to discuss whether they should really continue to demonstrate the design plan of the 273 mm multiple rocket launcher provided by Liu Yue.

"Leader, after so many days, it's time to figure it out, isn't it? If the engine is not verified to be reliable, the 273 rocket artillery project will not be able to continue. Liu Yue said with a smile: "I don't know when the leader has time, go to our side to see the effect of the experiment......

The technical department of the base was originally opposed to this project, but after theoretical analysis, there was indeed no big problem, which confirmed the feasibility of this theoretical plan, and it would not exceed the technical level of the base too much, and it would not cost too much to get it out.

Jiang Zhihe, who was looking forward to this project, called Du Feng and Li Xingnong, and even asked Ye Jianfeng, the deputy chief engineer of the flight control room, to call them to see the experimental results of the tail flame spin engine.

They are also very interested in tail flame spin engines.

In this way, the group marched towards the base engine test station.

They want to see with their own eyes whether the tail flame spin engine can achieve the effect that Liu Yue said.

When everyone arrived, the engine was already on the ground test bench.

On the test bench, a rocket shell more than 6 meters long has been placed on the shelf of the ground test bench.

"This doesn't seem to be anything special, except for the addition of a few oblique nozzles at the tail......" The group looked at the engine on the test bench and was a little puzzled.

Just look at the engine, you can't see anything.

"Leader, don't underestimate these oblique nozzles, each angle of the oblique nozzles is different. According to the involute arrangement, the air flow from the oblique nozzle is in different directions, which drives the rocket to rotate...... The thrust generated by the tail main nozzle is the main thrust, propelling the rocket ......"

Liu Yue pointed to a circle of nozzles arranged along the tail along the involute line of the engine.

The angle of the nozzle arrangement is the key to the spin of the rocket.

Of course, the efficiency of the engine determines the speed of the entire rocket, take-off weight, etc.

"This circle of oblique nozzles, the cost of the entire engine is not low, right?" Du Feng felt a little painful.

The cost is too high, the troops can't afford it, and no matter how good the performance is, it's in vain.

It's not a strategic thing like the big east wind in the base.

"The price is not high, and it is good to use stainless steel pipes to process oblique nozzles...... In order to ensure stability and ensure the dynamic balance during flight, the threads are machined to the top of the engine instead of welding...... When the engine is working inside, part of the backward air jet will impact on the inside of the nozzle and spray along the inclined sprinkler, allowing part of the thrust generated by the engine to enter the nozzle, thereby driving the entire rocket to spin slowly in the air......"

Liu Yue introduced the working principle again.

He then instructed the staff next to him and began to refuel the inside of the rocket model.

Once the fuel is loaded, the engine is ready for experimental work.