Qin Guan's proposal has opened up a new idea for them. If they can perfectly solve the problem of melting the deck and greatly improve the range, what are the shortcomings of their VTOL aircraft?

Thanks to the Han people, their research on VTOL aircraft is so thorough, even better than their own! Shuqikov looked at Gu Zong and others around him and praised them with a thumbs up. It's really powerful.

The attainments of the Han people are very deep.

Now, let's go to the test workshop together. At this time, dongdukov has begun to make a brief introduction.

"Now, our two teams have worked together to build a new power system and are conducting the final experiment. If there is no problem in the experiment, we will install the aircraft for flight test." dongdukov's voice was soon drowned in the roar of the engine.

If there is no change, the Jacques 141 aircraft has already carried out the test flight of the prototype, but the improvement of the whole power system has delayed its test flight.

Now, when he walked into the test workshop, Qin Guan immediately brightened his eyes. This thing is very similar to the power chain of F-35!

Behind it is the main engine, the r79 engine developed by Xiong Guo. The thrust weight ratio of this engine is not very high, but its power is very strong. After all, it is 150 kn!

Later, Xiong Guo disintegrated and found that there was no suitable engine when developing a new aircraft. At that time, some people wondered why the r79 engine was not used!

Its thrust is close to al41, but al41 has not been successfully developed at all. It can only develop an engine such as 117s that uses al41 technology to improve al31. Why not use r79 directly?

Of course, there are many reasons. Although this engine has strong thrust and large self weight, it is said that the thrust to weight ratio is less than 7, not even the third generation engine, let alone the power of the fourth generation engine. The fourth generation engine needs an engine with a thrust to weight ratio of 10.

On the other hand, the engine design bureau competed. In the end, only Saturn won. After all, people have the export of Su-27 as the foundation. The al31 engine is in short supply, and other engine design bureaus can only eat soil. Later, they were merged into a consortium. According to their plan, of course, they first take care of their own Saturn projects, others, Useless items should be thrown away.

As for the Han country's use of r79 technology to develop the turbofan-15, it is echoing others. No matter what new projects the Han country studies, someone always wants to find them a imitation object, just like the J-10 is a lion fighter imitating the David people. This statement is impossible as long as you understand the military aircraft R & D process.

Now, behind is the r79 engine with vectoring nozzle. In front is a vertical fan connected through a rotating shaft. At this time, the rotating shaft is rotating at high speed and transmitting huge power.

"It has been running continuously for more than 50 hours, which proves that there is no problem in the processing of the transmission shaft." President Gu said aside, "we have used the equipment of the North heavy truck factory and processed with the materials provided by Xiong Guo, which has perfectly met the design requirements."

At the beginning, everyone was worried about the processing of this transmission shaft. After all, this thing needs to transmit tens of thousands of horsepower. It needs to be thin and high precision. Xiong Guoren can't do it by themselves.

However, Xiong Guo has made such high-strength materials, coupled with the high-precision processing capacity of Han country.

"Under the high thrust test, the rear can provide 14.5 tons of thrust, and the front can provide about 7.5 tons of thrust." shuchkov then introduced: "in this way, it is completely enough for our Jacques 141 test. As long as the current power system is verified, we can install our aircraft."

They also have to catch up with the progress. When the new aircraft carrier is built, they will fly up several times. What if they are favored by the Navy?

After all, the Navy now has a group of pilots flying Jacques 38. It will be familiar to fly Jacques 141 instead.

According to the original scheme, the rear engine provides 15 tons of thrust, and the front two lift engines provide 8 tons of thrust. Now, this engine directly drives the front lift fan, resulting in the power loss of the main engine, which is reduced to 14.5 tons, plus 7.5 tons of the front lift fan, which seems to lose one ton of thrust compared with the original design, But at the same time, after adopting this design, the self weight is greatly reduced. By replacing two lift engines with a lift fan, the weight is reduced by half a ton. In addition, it can save a lot of fuel, which is absolutely affordable.

Originally, two rd-41 lift engines were used, with a single thrust of eight tons. At the same time, the self weight of this thing is only 290kg, which is the dry mass. In this way, the thrust to weight ratio of this engine reaches 14 against the sky. It's black technology. Even the F22 engine is not so high.

Of course, this is in exchange for sacrificing the service life. The service life of this engine is only dozens of hours. Of course, the lift engine is only used when taking off and landing, only a few minutes at a time. Therefore, the service life of these dozens of hours is enough to fly for several years.

The weight is not saved too much. What is saved is mainly the structural weight, fuel weight, etc. Moreover, the problem of burning the deck can be solved perfectly, which is the most critical.

"Separation test." dongdukov shouted. This continuous operation does not make much sense. It will change once in three minutes. Separation or combination is more important and is also the focus of another test.

"Wow." just then, I heard a shaking in the gearbox, and then someone shouted, "no, separation failed!"

The previous dozens of experiments have been carried out smoothly, but now, when Qin Guan came here to inspect, the power chain here has failed.

In addition to the transmission shaft, the gearbox and clutch are also a key point. If they can not be separated or combined normally, it is definitely a tragedy!

The roar of the engine disappeared. The r79 engine seemed exhausted after a long time of operation and finally stopped. Some people couldn't wait to take tools and start disassembling the hot gearbox.

President Gu and others are also embarrassed. It's not easy for president Qin to come once to see the results. Now why are there problems again!

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