Dominate South Asia

Surge vibration means the engine vibrates during breathing. There is also a more vivid way of saying it, which is that the engine coughs.

This has to start from the principle of the engine. In an aircraft engine, there is a compressor in front, which is equivalent to a large fan that blows air continuously. There is a combustion chamber in the back. The high-temperature and high-pressure gas after burning drives the turbine blades to rotate. It can be imagined as a windmill. At the same time, these gases go out and drive the aircraft to fly forward. The windmill drives the large fan in front to rotate.

There are more than one fan, but multiple fans installed on one shaft. The further back, the greater the pressure, and the smaller the diameter of the fan, so that the air can be compressed to a high enough pressure.

This is a normal situation, and the special situation is that the air blowing from the front does not blow to the blades at the back. The reason is that the blades at the back rotate faster, and the airflow on the surface of the blades is separated. As a result, it collides with the airflow blowing from the front. In this way, the blades further back cannot receive enough airflow, and the same phenomenon begins to occur. The result is that the airflow that should have blown backwards becomes forward, which is coughing.

The cough of the engine has very serious consequences. The airflow will vibrate with low frequency and high amplitude along the compressor axis. This vibration will drive the large fan to vibrate strongly, and the fan blades will be seriously damaged or even broken in a short time. What is more dangerous is that the cough is too severe and even affects the combustion chamber behind, where the temperature is at least 1,600 to 1,700 degrees. If the high-temperature gas inside, that is, the flame, flows back, even if it only lasts for a few tenths of a second, the high-temperature flame running around is enough to burn all the blades of the compressor, and the engine will be scrapped.

In order to prevent the engine from surging, the blade speed needs to be appropriate, so the advanced engine. It is already a double rotor, with the inner and outer shafts rotating in sleeves, and the speed is different. And this M53 engine is still a single rotor.

In addition to multiple rotors, general engines also need to set a vent valve in the middle, and the inlet blades are adjustable. Various measures to improve the engine's surging margin and imitate the engine into this state.

So. No matter how well the French promoted it, Muhammad didn't believe that this thing was really that amazing. The tactics practiced by the Pakistan Air Force were to let their engines enter a surge!

How to enter a surge? Of course, they were tortured. When the Mirage 4000 had been flying for too long with afterburners turned on, and then tossed up and down, the drastic airflow difference between high altitude and low altitude was enough to make the engine unable to breathe.

Sure enough, the two engines of the Mirage 4000. At the same time, it completely turned into an iron lump.

The Sidewinder air-to-air missile successfully hit the fighter. At this time, the pilot was still trying to restart the engine, but unfortunately it failed.

Watching the Mirage 4000 break into pieces in the air, Rick drove the fighter back to the sea to fight with the Sea Harrier.

The other two Mirage 4000s were shot down, leaving only the last one, accelerating desperately. Almost regardless of the life of the engine, it left the war zone.

Unfortunately, it didn't know that no matter how it escaped, it couldn't escape the range of the Phoenix. After escaping 50 kilometers, it was caught up by the Phoenix missile and turned into a beautiful flame in the sky.

And the battle with the Sea Harrier. It is over.

Of the more than 20 Sea Harriers that took off later, only one returned to the aircraft carrier, and the rest fell into the sea.

The wreckage of the warships was floating on the sea, and some warships. They did not sink for the time being and were struggling hard. The biggest task of the two aircraft carriers became to rescue their sailors who fell into the water.

Ravi-Rikeye stood on the bridge, looking at the scene around him. His heart was full of dead ashes, and the pistol in his hand was sweating.

He knew that his mission was not over yet. He had to take all the naval soldiers back, and after returning, he should commit suicide to take responsibility for his dereliction of duty.

In this battle, the Indian Navy was crippled. If the only lucky thing was that the two aircraft carriers were still there, it seemed that the Pakistan Air Force had consumed all its anti-ship missiles.

As long as the aircraft carrier is still there, the Indian Navy still has hope!

A few minutes later, a large number of fighters of the Indian Air Force rushed to the sea, Mirage 2000, MiG 29, hoping to protect their aircraft carrier formation, but unfortunately, it was too late.

The Pakistani Air Force had already retreated and left the sea, and these fighters that came from a long distance were short of fuel and did not catch up.

The Pakistani Air Force defeated the Indian aircraft carrier formation neatly, and this battle was soon spread all over the world.

Pakistan only used ten Tomcat fighters to complete the task of attacking the aircraft carrier formation, shooting down the Sea Harrier fighter, and shooting down the Mirage 4000 fighter. The powerful combat capability of the Tomcat fighter once again subverted everyone's cognition, even including the US Navy.

The only pity is that due to the limited number of Tomcat fighters dispatched, the Indian aircraft carrier was retained. The Indians learned this lesson and will definitely be equipped with more powerful carrier-based aircraft!

All the experts were regretting that they did not sink the Indian aircraft carrier. They did not know that this was actually left by the Pakistani Air Force so that India could continue to invest a lot of money in the two broken aircraft carriers.

The Indians were completely frightened at sea, and the battle on the ground also entered the final stage.

The Indians sent out a surprise attack from the Kutch swamps, intending to sneak attack the Pakistani Karachi military port, and then march northward with unstoppable force.

Unfortunately, the Indians' wishful thinking was blocked by the narrow Indus River.

After obtaining enough fuel, the 31st Armored Division also came up, hoping to cross the Indus River. Unfortunately, the infantry division on the opposite side continued to contain them.

However, the Indian army believes that as long as they work harder, they will be able to cross the Indus River! At the same time, following behind, two more armored divisions passed through the swamp.

Although India has a numerical advantage in terms of army numbers, the territory they have to defend is vaster. The mobilization of these armored divisions has created a defensive gap in the rear.

Almost all military observers turned their attention from the battlefield in Afghanistan to southern Pakistan. They were surprised to find that why did Pakistan not use their A-7 attack aircraft to strike from the air and quickly eliminate these ground troops?

Moreover, the Pakistan Army is crawling at a snail's pace. It has not come up with a perfect plan for such a long time. Why is there any hesitation? If we don't mobilize the troops to drive the Indians out, once these Indians gain a foothold, maybe the seaport here will be occupied by Indians! By then, Pakistan’s maritime comrades will be greatly affected!

What about those regiments in central Pakistan? Why are you still standing still? Military observers have made various assumptions about the marching route of the Pakistani army. Unfortunately, no one has made accurate guesses.

Could it be the same as Argentina in the Falklands War? The Air Force fought bravely, but the Army kept doing nothing!

United States, White House.

"Pakistan once again requested us for two billion U.S. dollars in military aid." Secretary of State Shultz said: "They asked us for a large amount of military material assistance, including various air-to-air missiles and various army weapons. Our ten Pakistan also hopes to lease Tomcat fighter jets and twenty A-7s free of charge.”

Another two billion dollars! That Mhammad really dares to open his mouth! Everyone is lowering their heads, listening to Schulz's words, this Pakistan is like a bottomless pit.

"Pakistan just won the battle today and sank more than 20 Indian ships." Defense Secretary Weinberg said: "On the battlefield in Afghanistan, there has not been much movement yet. I think Pakistan is showing off. It is clear that they must confront India first, and then ask for assistance from us. Our assistance was not used on the battlefield in Afghanistan, but was used on the Indians.”

This is the most depressing thing for the United States. The United States absolutely does not support Pakistan and India in war, but now, Pakistan and India are fighting to the death.

"This cannot be blamed on Pakistan." Bush said: "This time, Pakistan is under great pressure. The Soviet Union even used surface-to-surface missiles. The Peshawar Air Force Base has also been reduced to ruins. Pakistan has spent a lot of money on the war in Afghanistan. Very big.”

Vice President Bush said something fair. If Hamad half a world away heard it, he might be moved to tears.

"Yes, Indians are really like this, joining in the fun at times like this." National Security Assistant Poindexter said: "Every time they want to come and take advantage, can they calm down for a while? Every time It cost me a lot.”

India and Pakistan are mortal enemies, and they also have a good relationship with the Soviet Union. However, in the US strategy, India is also a very important chess piece, and the United States does not want the Indians to lose too much.

"It's really strange this time. We didn't export our Harpoon missiles to Pakistan. How did they attack Indian warships?" Weinberg continued to ask.

"Yes, we need to investigate this matter clearly." Bush also realized the seriousness of the problem.

"Everyone, what we are discussing now is the issue of military aid. Pakistan has once again proposed this military aid. Should we agree?" Reagan put down his cigar and looked at his think tanks.

Reagan also had a headache. Just an hour ago, President Mhamad once again summoned the US Ambassador to Pakistan. He was very anxious. It seemed that if the United States continued to provide no assistance, Pakistan would perish.

Ambassador Arnold, who has been deceived several times, will naturally not believe that President Hamad is already a god-like existence. How can he lead Pakistan to destruction? (To be continued ~^~)