“…… The 1st Division of Zhiqing City, with the main force of armored forces, quickly attacked Sreangbe, and in an hour captured the port city northeast of Kampong Son Bay, or rather, basically encountered no decent resistance......" The news quickly spread back to China.

Rao is in the depths of Daba Mountain, and Liu Yijiu and others also got the news for the first time.

"They've done a great job!" Even if Wang Shunyi didn't know how to march and fight, under such circumstances, it was clear that Yang Wei and others were still very well prepared for this battle.

"The battle lasted a long time, taking three days, three times the size of the defenders, and a fierce street battle with the Vietnamese. Now the two sides are facing each other at the Cardamom Pass on Highway 4, and at the same time, the troops of Zhiqing City are moving towards Sihanoukville, cutting off the railway line from Phnom Penh to Kampot to Sihanoukville, and the two sides are facing each other along the river, but the 171st Fleet of the Vietnamese Navy has a very large defense line against the sea at sea......"

"Didn't the armored forces of both sides go to war? The monkey's air force also did not make a sortie? Liu Yijiu asked with a frown.

Yang Wei's attack speed was indeed very fast, although the attack had been delayed for too long.

"There was no large-scale armored war between the two sides, and the city could not afford to lose, let alone the Vietnamese. Therefore, the troops of Zhiqing City started the raid with armored troops, and they formed a special anti-armor and air defense force, equipped with our bazookas, Houyi-2 anti-aircraft missiles, and Black Arrow-2 anti-armor missiles. Throughout the course of the operation. Vietnamese warplanes appeared only twice, one was destroyed and one was damaged. As for the armored forces, 7 tanks, 11 armored vehicles were lost, and all the rest were withdrawn to Sihanoukville......" The reporter explained in great detail the war between Zhiqing City and the Vietnamese.

In a war over there, it is basically difficult to have a large-scale confrontation of high-tech weapons as it did on the Iran-Iraq battlefield.

At least in the present time. It's not much of a possibility.

"Again, because of the 171 fleet, the troops of Zhiqing City can only surround Sihanoukville. And can't take it! ”

"Didn't the main armed transport ships HQ604 and HQ605 of the 171st fleet be killed by us in the Paracel Islands?" Liu Yijiu frowned, the Vietnamese Navy itself did not have a few warships, "Could it be that the Soviet Navy helped them attack?" ”

"It's not. The 171 flotilla although lost two main armed transport ships. But there are also frigates with larger caliber guns, all of which were sold by the Soviet Union to the Vietnamese government ......"

Hearing this, everyone in the base management committee knew that now it seemed that the naval construction on Nipudosan's side really had to speed up.

However, without the 532 ship, it will be difficult to quickly form combat effectiveness over there.

Over time. The Soviets will station more warships in Cam Ranh Bay in Vietnam.

"Notify the 701 Institute to speed up the pace of improvement, in addition. Our Z-91 weapons tests must also be accelerated! Liu Yijiu finally made such a decision.

The improvement of the 532 ship, followed by the installation of a helicopter platform, when there is no helicopter on the ship, you can put an additional triple installation of C801 anti-ship missile launcher, which can be launched manually or controlled by the ship's control computer.

Helicopters, the role of the attack is not too large, and it mainly takes on the responsibility of reconnaissance, as a way to compensate for the lack of radar.

The improvement of the 532 ship is still a test!

Therefore, in the war on the Nipudosan side, Liu Yijiu did not invest too much energy.

The Spring Festival of 1982 was spent in the busyness of everyone. Everything in the base is developing in an orderly manner. The other industries in the base have begun to make profits, and the profitability is still very optimistic.

This makes the subordinate units of the Ninth Academy have a fat year, and the year-end bonus or something, naturally makes other systems and other units red, and more importantly, the subordinate units of the Ninth Academy have more abundant New Year's goods this year, seafood from the South China Sea, apples from the north, oranges from the south, etc., as if they don't need money.

The year-end bonus of the Ninth Academy did not rise a lot all at once, or even did not rise, which made the opposition of other units a lot less.

Just after the Spring Festival, several leaders of the Ninth Academy Base began to follow the five helicopters to Qinghai by railway, went to the Qinghai-Tibet Plateau, and began to test the performance on the Qinghai-Tibet Plateau.

At this time, most of the area on the Qinghai-Tibet Plateau was covered with snow, but Liu Yijiu could not continue to wait.

These helicopters are needed in Zhiqing City.

Only by showing performance can Iran's Ministry of Defense change their minds.

Twin-rotor helicopters, at the moment, do not fit the aesthetics of these guys.

The test of the helicopter is not enough to fly around in the sky. Of course, there are times when even flying is extremely difficult......

"Increase the altitude by 200 meters, fly to 6400 meters!" On the Qinghai-Tibet Plateau, above the vast snow-capped mountains, five huge helicopters flew in formation.

As the pilot flight helicopter of the entire formation, in a helicopter cabin in front, Liu Yijiu held a walkie-talkie, looking at the blue sky outside, although it was very cold on it, and he felt difficult to speak, but he was still sweating profusely.

"Director Liu, the output power of this helicopter has begun to be insufficient at an altitude of 6,000 meters, and now it is only barely flying at 6,200 meters, if it climbs up again......" Liao Zhuojing, who is the chief engineer of the helicopter and the deputy chief designer, is also so nervous that he is sweating profusely.

The flight of the plane is already very unstable.

If you climb further up, the turboshaft engine of the helicopter will not have enough power output and cannot climb upward, and it will easily cause a greater disaster due to insufficient engine combustion efficiency.

"I knew we had to test the engine's extreme power! At higher altitudes, changes in the engine due to changes in oxygen levels must be documented in detail. "The reason why Liu Yijiu insisted on letting the Z-91 go to the plateau for testing was to prevent the introduction of Black Hawk in China.

Moreover, only a helicopter capable of going to the plateau can fly well in any complex environment.

The Republic copied a lot of helicopters back then, but not many helicopters could be used on the plateau, except for some civilian Black Hawks to carry out missions on them.

The environment on the plateau is harsh, and the problems on the border are also very serious, so helicopters are more capable of quickly dropping supplies to this side, or even patrolling the border line.

Now these helicopter engines are a little reluctant at an altitude of 6,000 meters, and the cruising speed is not satisfactory to him, mainly because the engines of this aircraft are not good.

Under Liu Yijiu's order, helicopter test pilot Huang Pingyang replied that after receiving it, he began to pull the control stick to the back, hoping to increase the flight altitude by raising the pitch of the propeller.

However, as the joystick fell backwards, the helicopter, which was originally flying and shaky, rotated more and more slowly on the two sets of rotors rotating in opposite directions, and the helicopter became heavier and heavier.

"Open the distance between the two planes, control the flight attitude, don't rush to climb quickly, take your time!" Liu Yijiu, who was in the cabin, was almost unstable by the violent shaking of the helicopter, and the flight status reported by the helicopter behind made his nervous palms sweat.

The few people next to him were even nervous and pale.

The test flight of the Z-7 was not completed at all, and there was no experience in participating in the plateau test, and Liao Zhuojing, Zhan Like and others were the first to personally experience the test of the aircraft in the helicopter cabin.

Although the Z-91 has shown good performance in the previous performance tests and various environmental tests, you must know that this is the Qinghai-Tibet Plateau in winter.

I've been preparing since before the Chinese New Year, and the regular performance test in the first few days is very good. After all, the highest altitude has not yet been reached here, and the practical ceiling of the Z-91 is designed to be at 5800 meters.

After a few days of testing, the practical ceiling exceeded 6000 meters, and at 6200 meters, although the flight attitude was not very stable, it could be maintained for a period of time.

Now that you haven't climbed many meters, the flight attitude of the plane has become very difficult.

The bumps are so bad that it's hard to control.

Liu Yijiu asked to continue to climb up, and once something happened, the plane fell.

"Director Liu, please put on the parachute!" As soon as Liu Yijiu finished speaking, a middle-aged soldier wearing a thick Air Force leather jacket came to Liu Yijiu with two parachutes in his hands, and said very respectfully to Liu Yijiu.

"All of these parachutes?" Liu Yijiu frowned.

Helicopter pilots do not have parachutes.

"No, we weren't fully prepared at first, there were only three parachutes on it, so ......," the soldier said distressedly to Liu Yijiu.

There are several people in this cabin, Liu Yijiu and his daughter-in-law, this is definitely necessary. Who called him the chief designer of the Z-91!

Deputy Chief Designer Liao Zhuojing and Deputy Chief Engineer Zhan Like are also must-haves!

"Xiao Liu, put it on, if something happens to you, the project of Zhijiuyi will be over. At the same time, many projects in the base cannot be carried out...... "Liao Zhuojing has not been in the Ninth Academy for a long time, but he knows the importance of Liu Yijiu.

Once the helicopter loses control and falls at an altitude of more than 6,000 meters, there is absolutely no chance of survival!

"We designed this helicopter, Mr. Liao, you have participated in more work than me, if we ourselves are not confident in our helicopter, can our customers still have confidence? When our troops use it, can they rest assured? Extreme testing, a must! If you are afraid of death, you put on a parachute, I don't wear it, I have faith in them! Liu Yijiu pointed to Huang Pingyang and his apprentice in the cockpit in front of him. (To be continued.) )