Chapter 462: Hover time

The hover of the helicopter is not simple.
It is no ordinary parking. A few actions can be completed.
When the helicopter is hovering, there is no support at the front, back, left, or right, and it is completely supported by the airflow. The requirements for engines and rotors are very high.
The fact that you can fly to an altitude of six kilometers does not mean that you can hover at an altitude of six kilometers.
Generally speaking, the hovering height of a helicopter is about three to four kilometers. We have to distinguish between ground-effective and non-ground-effective.
Hovering with ground effect means that it is relatively close to the ground, and can increase the lift of the helicopter with the help of airflow reflection on the ground. This hover generally does not require much effort. The engine load is not heavy.
And hovering without ground effect refers to high altitude, far from the ground, no airflow reflection from the ground, and it completely depends on the power of the engine.
The engine at this time will often reach its maximum load. It is the most test of engine performance.
If it is to mount heavy objects, hovering is even more difficult.
For helicopters, hovering is the most critical link.
If you can't hover smoothly, it's not a helicopter. You can just throw it away.
One of the most important training subjects for the Army Aviation Corps is hovering.
Normally, Cheng Shan himself hovered at an altitude of three or four kilometers, rarely more than four kilometers.
After all, hovering at high altitude can cause great damage to the engine.
In addition, the fuel consumption is also very large.
Now, being able to hover at an altitude of 7,000 meters is simply incredible.
"Record the data!"
"Be sure to record the data!"
Cheng Xiaoshan said excitedly.
Of course someone filmed all of this.
Various data are also quickly uploaded to the General Staff Department of Army Aviation.
The instructions from the superiors also came quickly: to ensure safety, test the performance of the engine as much as possible.
Wang Bu'an will make the final decision on on-site testing.
When necessary, part of the airspace can be cleared. This matter has been applied to the Air Force.
"Master Wang, how long is the maximum hovering time?" Cheng Xiaoshan asked cautiously.
"You can stop as long as you want." Wang Bu'an replied casually.
"Will the engine overheat?"
"will not."
Wang Bu'an responded lightly.
overheat?
nonexistent!
The highest temperature is four to five thousand degrees.
However, the 100 turboshaft engine he manufactured can withstand high temperatures of 30,000 degrees.
Seriously, the current raw materials are a bit wasteful!
Such high-end raw materials should not be used on the earth.
With a high temperature of 30,000 degrees, it is almost possible to establish a safe military base on Mars. Not afraid of cosmic rays at all.
Used as an engine, it is definitely an overkill.
Fortunately, no money is needed.
No need for nothing.
The hill continued to hover.
He wants to test the maximum hover time of the engine.
30 minutes
60 minutes
90 minutes
Gradually it was evening.
It's almost time for dinner. Du Yande arranged for everyone to eat.
The air force’s food has always been good. A group of people are all eating with relish. It's just being pitiful and becoming a leader. He continued to hover in the air. Have to hold back urine.
120 minutes
180 minutes
240 minutes
5 hours passed
6 hours passed
The helicopter is still stable and there are no problems at all.
The engine is obviously not overheating. There is no problem with stability and reliability.
However, Cheng Xiaoshan himself couldn't support it. After all, it is a body of flesh and blood, and it has persisted for six hours. Hungry and cold. Have to hold back urine. It feels like the bladder is bursting.
At an altitude of seven kilometers, it was still very cold. Especially at night. The temperature is almost close to zero!
Even wearing a flight suit, it feels very uncomfortable.
After all, the flight suit of the Army Aviation Regiment is different from that of the Air Force fighter.
Luhang is known as the fifth space. The general activity area is less than 300 meters. Yes, you read that right, it is below 300 meters.
This space is called ultra-low altitude. It is a blind spot detected by many radars. It is also an ultra-low altitude area that many fighter jets cannot reach. Only helicopters can occupy this space. Whether it is a low-altitude surprise attack or a lurking standby, the ultra-low altitude gives the helicopter very good stealth conditions. The armed helicopter is the overlord of the fifth space.
For the most part of Army Aviation, they are training for ultra-low-altitude raids. There are not many real high-altitude flights.
That is the sky of fighters and bombers. The helicopter is cannon fodder.
Naturally, the flight suits of Army Aviation do not have to resist the cold.
Seven hours passed
Eight hours passed
Cheng Shan finally couldn't bear it and had to return.
Landed safely.
The doctor is on standby.
Fortunately, there is nothing serious. It is extremely tired. Dehydration.
After some treatment, Chengshan was alive again. He quickly reported to his superiors, and at the same time discussed with Wang Bu'an to test more projects.
"What do you want to do?" Wang Bu'an said casually.
"Get a tank up there?" Cheng Shan was whimsical.
"No way?"
"Should the Type 59 tank be okay?"
"It's okay."
Wang Bu'an answered in the affirmative.
If it is a Type 59 tank, it must be fine! Only more than 30 tons.
The modified Bell 407 has an ultimate take-off weight of more than 60 tons. For this, Wang Bu'an is very sure.
When necessary, 99 tanks can be hoisted. What's more, the Type 59 tank?
The key now is that Chengshan can no longer fly.
He was already tired and got down.
I feel uremia is about to be suppressed. Really a man of iron.
The pilot must be changed.
Enter the deputy head.
The deputy commander is also a flying master.
He is fully prepared.
He changed into the air force flight suit. Prepare to test for a long time.
Just do it. After obtaining the consent of the superior, a heavy Type 59 tank was really transferred.
The ground crew used oversized steel cables to suspend the tank.
The deputy commander controlled the helicopter to take off.
The cable is tightened.
Adjust the balance.
Start to climb.
The Type 59 tank was easily lifted off the ground.
This big guy, known as the King of Land, is bigger than Bell 407. But it was still easily pulled up.
Soon after, the tank was hoisted to an altitude of 7,000 meters. Then hover.
The main test item is hover time.
The indirect is to test the stability of the engine.
Hovering for a long time poses a great challenge to the stability and reliability of the engine.
In daily flight, the engine requirements are not very high.
Long hovering is the fatal test.
If there is a problem with the engine, when hovering, there will be surging, swaying, bumping, and howling.
"Let's go to sleep."
"Ok."
Du Yande personally took Wang Bu'an to the guest room and arranged for him to live in.
Wang Bu'an is definitely one of the VIP guests! It is a national treasure even more than a national treasure.
"You have the approval of Chengshan."
"You get 80 million faith points."
"You have the approval of Du Yande."
"You get 80 million faith points."
This is the best proof.
In addition to the two of them, there are others.
The continuous income of belief value soon exceeded one billion in the balance of belief value.
This time, Wang Bu'an didn't use it.
When he plans to accumulate to 10 billion, he will apply for another marine industrial park.
We must continue to add something to the world.
Let other countries take action.
Otherwise, how can the arms produced by China be sold?
The barracks are particularly quiet, and sleeping is naturally very comfortable.
Secretly manipulated two marine industrial parks, and wanted to continue to make trouble, but did not find a chance, so he had to hide in the depths of the ocean obediently.
Yu Meilan seemed to give up too. I don't want to talk to Wang Bu'an. A person sat in a daze.
Waking up in the morning, it was already past seven.
get up. Wash.
Come out for breakfast.
By the way, I asked about the high altitude situation.
The deputy commander has been hovering for six hours. Continue to test. There are no special circumstances for the time being.
Cheng Xiaoshan also transferred people from the Army Aviation Corps overnight, preparing to continue testing.
This is exactly the rhythm of restlessness.
"Chief Engineer Wang, I also specially calculated the flight cost last night." Cheng Xiaoshan said excitedly.
"Does fuel cost?" Wang Buan asked absently.
"Yes."
"How many?"
"Just the time I was flying, it cost more than two hundred thousand."
"is it?"
Wang Bu'an was uncomfortable.
If it is to burn oil, it must be expensive.
To hit an altitude of 11,000 meters by itself requires very high fuel costs. It may be several times that of low-altitude flight.
Later, when hovering at high altitude and suspending 30 tons of heavy objects, the fuel consumption was even greater.
If it is burning aviation kerosene, it is all money!
"Our regiment's fuel expenditure is only a few million a month," Cheng Xiaoshan said emotionally, "but I can't stand such a toss."
"Now, you can fully enjoy yourself." Du Yande said, "Hurry up and practice."
"Of course."
"You kid!"
"Chief Engineer Wang, someone from the Army Aviation Department of the General Staff is coming today."
"Who?"
"Vice Minister Nie Chuan."
"Oh."
Wang Bu'an nodded.
In fact, he didn't know who the other party was.
However, since it is from the Army Aviation Department, it should be an authority figure.
It is estimated that 100 is to accelerate the development process.
The people of Luhang clearly couldn't wait.
They can't wait to switch to the 100 engine immediately.
Cheng Xiaoshan was right, it was all heavy silver! If you change clothes one day earlier, you can save a lot of money one day earlier.
The 100 engine can fly uninterrupted 24 hours a day.
Other engines can't do it.
"By the way, Chief Engineer Wang, how long is the life of the new engine?"
"A hundred years~EbookFREE.me~how much?"
"Anyway, it's a very big number. You can't use it up."
"No way?"
"Anyway, you can use it with confidence."
"That's good."
Cheng Shan is finally relieved.
I was worried about the life of the engine before. Unexpectedly, it has an infinite life span.
Unlimited range
Unlimited life
This is completely against the rhythm!
7
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