Super military empire

Liao Zhuojing's words caused Liu Yijiu's heartache for no reason.

The equipment is gone. As long as the people are there, they can be remanufactured. If the people are gone, what is the use of these equipment?The reason why Liu Yijiu could not go was not to show that he was not afraid of death. He knew that Li Rui would do everything possible to keep him safe under any circumstances.Li Rui put on and landed, also for him.

Therefore, he did not say anything.

But he hopes to take Huang Pingyang to jump with him, if he can't control it.

Huang Pingyang is a super pilot comparable to a pile of gold.In recent years, among the helicopter pilots of the Republic, there are very few special-grade helicopter pilots, especially those who have served in the full test flight of the Zhi-8. He also flew the Zhi-91 for such a long time. No one in China can compare his experience.

From the very beginning, when there was only one prototype, he was in charge. The test pilots for the next few planes were selected from other units, not the top helicopter pilots.

"Old Huang, don't mention the pitch, keep the helicopter flying smoothly, don't mention the pitch, keep the flight steady! Increase the output power of the engine, the remaining engine will also stop due to overload..." Liu Yijiu was helpless. In the end, only a few security personnel were arranged to be ready. Once the plane was completely out of control, it was necessary to hold Liao Zhuojing and Zhanlik to jump down.

Fortunately, returning to the middle channel of the cab in front of the cabin, I saw that Huang Pingyang, who was sweating heavily, was desperately raising the pitch, hoping to increase the output power of the remaining engine of the helicopter that did not stop working.

Suddenly he was shocked.

In such a scenario, continuing to increase the output power of the engine is likely to overload the engine and then stop.

Once this happens, there is no chance at all.

Hearing this, Huang Pingyang's nervous mood suddenly became relaxed.No longer care about whether the engine power is sufficient, but strive to control the helicopter to maintain a stable flight attitude.In this way, the descent speed of the helicopter is effectively controlled.

"Director Liu, control it!" Although the helicopter was still descending rapidly, it was not uncontrollable.

"Don't worry, I have confidence in my design, and I am also confident in your operation. Try to keep the flying attitude as stable as possible and find an open space to land. Before landing, we are still very dangerous." Although the design The point is that even if a single engine is parked, the helicopter can fly a very long distance and even fly back to the airport when the load is not exceeded. However, this is a plateau, and anything can happen.

At an altitude of 6,000 meters, the air movement is not too strong, but on the hills above the ground, the wind is very strong.

In the case of an engine, the output power is insufficient. It is not easy to control the flying attitude, and it is even possible to be blown over by the wind!It ended up in a plane crash.

The Republic also introduced helicopters of the Mi series and French helicopters. In the end, these helicopters were not deployed on the Qinghai-Tibet Plateau because these helicopters were not very stable in flight under harsh and complex and changeable weather conditions.

Not to mention, even the Mi-24 cannot go to the Qinghai-Tibet Plateau.

For a long time, the only helicopter rescued on the plateau was the civilian version of the Black Hawk exported to China by the US.Even many border outposts sent supplies only in sufficient quantities before the heavy snow closed the mountains.

The helicopter did not descend as quickly as before, but slowly descended while flying forward on a trajectory of a thirty-degree oblique line.Even so, Liu Yijiu's nervous heart couldn't relax. Huang Pingyang did the same.From the stop of one engine to the present, in less than seven minutes, the helicopter dropped directly from an altitude of more than six thousand meters to an altitude of less than two kilometers!

On average, the helicopter drops ten meters down every second!

Once the remaining engine stops, the consequences are absolutely unimaginable.

Zhi-91, without a weapon system, has an empty weight of 7,200 kg, which is 2.4 tons heavier than the U.S. Black Hawk. This is because a large amount of titanium alloy is used to make the air so light. .More than a dozen researchers, two drivers, and more than two hundred kilograms of monitoring equipment, together weigh nearly ten tons.

A ten-ton object is moving in free fall from an altitude of six kilometers...

"Keep it up, don't think about increasing the propeller pitch to increase the engine output, find a place to make an emergency landing. Pay attention to the mountain in front, if you can't fly over, just take a detour!" Liu Yijiu is now Huang Pingyang’s navigator. On the top of the mountain, it is impossible to make a direct landing.

The other four helicopters also accompanied the flight.

"Don't worry that we can't take it anymore. We haven't reached the level where oxygen is needed. Let's jump! We are not afraid..." Said that they were not afraid. After jumping from such a high altitude, the legs of both Zhanlik and Liao Zhuojing were trembling.

They had never been on a helicopter at all during the straight -7 test flight.

This time Liu Yijiu did not ask them to fly randomly, but observed with a telescope below. They saw deep contempt in the eyes of the young Director Liu.

Before, they had never boarded these helicopters of their own design.

"No need to argue, it's no longer necessary to jump the plane now! Don't you feel that the plane is flying very smoothly now?" Above the Qinghai-Tibet Plateau, tense up, no one noticed that the plane's descent speed has changed. It's very slow.

The original equipment used to monitor data during the flight is still in operation, but no one pays attention to the data.

Whether to protect their lives or equipment, they have a very clear answer in their hearts.Therefore, as long as they said, let’s jump without a parachute, they would open the hatch and jump out without hesitation, let alone a parachute.

"Sure enough! Now the descending speed is 4.5 meters per second, and the level flying speed is 155 kilometers per hour..." Liao Zhuojing hurriedly jumped toward the monitor beside him when he heard Li Rui's words.

Liu Yijiu didn't bother to the back. Now for an engine, it was already a bit overloaded.

The total power of the two turboshaft-4 engines is 2860kw, and the single power is only 1430. Although the power is nearly 300kw higher than the 1160kw of the t-700-ge-701 engine produced by General Electric used by the Black Hawk, The thrust-to-weight ratio is much smaller than the 0.959 thrust-to-weight ratio of the 701 engine used by the Black Hawk, only 0.832.

Moreover, the turboshaft-4 engine is a brand-new engine. It is the engine that Director Liu opened the golden finger to get. It has not gone through a long and large-scale flight test. Is it as reliable and durable as a General Electric engine? Long-term large-scale experiments in the engine development process are not enough!

Therefore, Liu Yijiu was still worried that the remaining engine stalled.

The height here is not high, and once it falls, it is basically completely abolished.

"Director Liu, thanks to you! Phew..." Huang Pingyang let out a long breath after the plane made a successful landing.

Until now, he had the intention of wiping the big beads of sweat on his forehead.

Under such circumstances, it really scared him a bit.

Also, the plane did not fall, nor did the equipment behind it dropped.

"Xiao Liu, when will you fly the helicopter?" When the plane stopped, Liao Zhuojing almost collapsed on the chair with his legs weak.After hearing that Liu Yijiu was commanding well, he couldn't help being a little surprised.

Director Liu can always give them such a sense of surprise.

Liu Yijiu smiled wryly, "It's not that I can drive a helicopter, but that I know how to operate it in theory. As a chief designer of a helicopter, various structures and operations must be remembered. In that case, Although the power of a single engine is somewhat reluctant, and the output power is somewhat insufficient, the lift generated will not make the helicopter completely out of control. In the state of level flight, the command will descend at an angle with the ground at a uniform speed..."

For the Zhi-91 this helicopter that Liu Yijiu has spent too much thought on, he is familiar with every place and every system.

He has a brain that is no less than a supercomputer.

"It's true!" Gianrico is in charge of production, and he is not familiar with these, but he turned out to be the deputy chief designer of Zhi-7 and is also unfamiliar with these technical issues.

"Okay, let's rest for a while and get ready to find the problem. In this case, if we can't get it done as soon as possible, we have to spend the night on this snow-capped mountain." Liu Yijiu didn't want to talk about it anymore.Under such circumstances, even the chief designer may not know how to deal with it and how to deal with it.

I have never eaten pork, at least I have seen pigs run.

The experience accumulated in the entire national military industry system over the past century is definitely not for nothing.

"Director Liu, let's fly this plane slowly to the temporary base. The car can't get up here on the mountain..." Huang Pingyang asked for orders.

"No, there are tools in the other helicopters..." Liu Yijiu shook his head and refused.

The problem here should not be very big.

At the beginning, he had seen all the electronic instruments on the console. Although the indicator lights were flashing constantly, it was all caused by the lack of engine output.

He had already guessed the reason for the engine stop, but he didn't say it.

On this cold plateau, Liu Yijiu and Liao Zhuojing personally inspected the entire helicopter. Instead of checking next to him, Liu Yijiu opened the engine room on the top of the helicopter, and finally checked the compressor carefully.

"As expected, it was caused by a compressor malfunction!" Liu Yijiu said with a wry smile looking at the compressor.

Others never thought that Liu Yijiu would discover the problem so quickly...