Back to the Republic of China to be a editor

Two sets of parameters with vectors are input into the computer to let the computer calculate how the missile should turn, and then translate the calculated results into rudder steering instructions and send them to the air defense missile in flight.The missile will be able to chase the enemy plane until the other two vertices of the triangle overlap, boom.

The fire control computer and command instrument were jointly developed by the Beijing Computer Institute and the Communication Electronics Institute.

The missile body and warhead were developed by Dalian Jianxin Company.

Missile proximity fuze, developed by Shanghai Radio Instrument Factory.

The missile engine, which asked the Soviet Union to ask for technology, was imitated by Dalian Jianxin Company.

The radio transceiver and launch control system were developed by Hon Hai Electronics.

Radar, ask the Soviet Union to ask for it, and come back and modify it yourself.

Rotary launcher, Dalian Jianxin Company.

For launch vehicles, ammunition transportation and supply vehicles, trucks equipped with radar and fire control instruments, I still ask the big brother of the Soviet Union to ask for them.

Although the completion date of the project is April 1951, 4, and there are still more than eight months to go, the progress seems to be quite tight.

……

In addition to reaching out to ask the Soviet Union for things, you have to go to the Soviet Union to borrow things.

At Nanyuan Airport, Tang Hua specially bid farewell to Lu Xiaopeng, an engineer of Nanyuan Aircraft Repair Plant who was about to fly to Moscow.

"Lu Gong, I know your ideal is to design China's own aircraft, but the first task given to you is these two things, I'm sorry." Tang Hua said looking at the two large wooden boxes behind Lu Gong.

"I'm very satisfied to take this opportunity to visit the Mikoyan Design Bureau," Lu Gong said, "Besides, I also know that these two things are very important."

The Mikoyan Design Bureau ordered 2 T50 computers and requested direct air transportation with deep pockets.Taking advantage of this opportunity, Tang Hua made wooden models of the two types of missiles and sent them to the Mikoyan Design Bureau to ask them to do a round of testing in the wind tunnel.

The computer can figure out how the missile should turn, but how many degrees should the missile's front rudder deflect?How much should the rear rudder be deflected?Which direction to turn in order to make the missile turn according to the predetermined trajectory?It is best to blow it in the wind tunnel first to find out the aerodynamic performance and various parameters of the missile.It would take too long to calculate purely on paper and then use missiles to try it blindly.

The problem is that China's first wind tunnel was built in 1952, in the Kazakh military industry.The second wind tunnel was built in Shenfei in 1954.

Now I can only go to the Soviet Union and go to the Mikoyan Design Bureau for a wind tunnel.Fortunately, Mikoyan ordered two T50 computers, and agreed to Tang Hua's request as soon as he was happy.

"You worked as an engineer at McDonnell and participated in the design of the F7U, and this time you can go to Mikoyan," Tang Hua said, "You can learn all the essence of the aviation industry of the United States and the Soviet Union."

"Minister Tang," Lu Gong said, "I'll get a vaccination first. I might not be the chief designer of their next-generation aircraft when I go to Mikoyan. I'm not like you..."

Both Tang Hua and Lu Gong laughed.

"Remember, as soon as the wind tunnel test results for the model of box 1 come out, it will be sent back to China by telegram no matter how long the test report is," Tang Hua said. The test results are particularly bad, you have the right to modify the model on the fly, and you don’t need to report to me for approval.”

A master-level figure in Chinese aircraft design, he worked as an engineer at Macdonald in 1944, and later designed the Qiang-5, a generation of magical machine Lu Gong. Tang Hua entrusted him with the work of model testing, so I can't rest assured. .

Lu Gong nodded.

Two large boxes were loaded onto the plane, and the two T50s and accessories had already been moved into the cargo hold.Tang Hua and Lu Gong shook hands and said goodbye. The plane closed the hatch and slid slowly to the take-off point.

Chapter 52, Dalian military industry is advancing

"Xuanxuan, in the next one or two months, I may have to go on a business trip for a while. Do you want to stay in Beijing or go back to Shanghai?"

Beijing, the courtyard of Tang Hua and Zhou Xuan.Since Zhou Xuan came to Beijing on June 6th, in the past month, Tang Hua miraculously did not have any business trips. Despite the changes in the world, Tang Hua stayed in Beijing, going to work, after work, and occasionally holding meetings at night. A trip to Tianjin is still a weekend, which is almost equivalent to taking Zhou Xuan to Tianjin to play.

"Where are you going on business trip?"

"Go to Dalian first, stay there for about a month, then return to Beijing, and then go to Shanghai soon, stay in Shanghai for about a week, and then return to Beijing." Tang Hua said.

"I don't have any movies to make in the second half of the year," Zhou Xuan said, "I'll just stay in Beijing."

……

South Korea.

The US 24th Infantry Division, which was thrown to Daejeon for a while, had completed its task.

史密斯特遣队拖了人民军24小时。34团拖了人民军48小时。然后，第24步兵师主力以伤亡7300多人、师长溃散时迷路最后被俘作为代价，在大田拖住了人民军整整12天。

On July 7, the People's Army finally got rid of the entanglement of the 22th Infantry Division, crossed Daejeon, and pointed at Busan.At this time, the 24th Division of the U.S. Army and the 25st Cavalry Division had already landed as a whole, and built fortifications to wait for the arrival of the People's Army.In addition, the 1st Brigade of the Marine Corps and the 2nd Meibu Division began to go ashore in whole regiments, and the remnants of the 24th Division that retreated were quickly replenishing troops, re-arming, and preparing for another battle.There are already 4 divisions and 55000 U.S. troops entering North Korea, plus 83000 newly recruited South Korean troops, bringing the total strength to nearly 14.At the same time, the strength of the People's Army on the front line is less than 70000, which is only half of the enemy's army, and more than half of the tank troops have been lost.But Kim Il Sung could no longer back down. After adding 3 recruits as reserve soldiers to the front line, the People's Army bit the bullet and launched a new attack.

What the People's Army is now facing is not an isolated city of Busan, but the defensive circle of Busan.The two support points on the outer circle of the defense circle are Daegu in the northwest and Jinju in the west, and the defense depth is as high as 80 kilometers.In Daegu, the T-34-85 tanks of the People's Army encountered the M26 heavy tanks transported by the US military from Europe for the first time.On the Nakdong River, the U.S. military dispatched 98 B-29 bombers at one time to carry out carpet bombing on the assembly positions of the People's Army.In the next month and a half of the attack, although the People's Army beat the U.S. and South Korean troops into a mess in some battles, they never captured Daegu or Jinju, and they couldn't break through the Pusan ​​defense circle at all.

In fact, starting from the end of July, the turning point of the battle situation has gradually become visible to the naked eye.However, Stalin strictly ordered the Soviet military advisers he sent to North Korea not to cross the 7th parallel. Now most of these Soviets commanded from across the air in Pyongyang, or trained recruits, and could not bring back accurate battle reports to the Soviet high-level on the frontline battlefield.

……

Dalian, Jianxin Company.

After half a year, when he visited Dalian again, Tang Hua could feel with his naked eyes that the factory area of ​​Dalian Jianxin Company had expanded again.

In the past four years, with the continuous supplement of capital, technology, and industrial machines, this military factory, which has made outstanding achievements in its original history, has quietly developed into a huge heavy industry-military production complex, which has even surpassed Fengtian Arsenal in its heyday is now the largest arms manufacturer in Asia.

In the steel area, two medium-frequency induction furnaces and one electroslag remelting furnace are busy, smelting crude steel into high-strength alloy steel furnace by furnace.

在子弹区，唐华看见了至少8个车间。大连建新现在在同时生产12.7X99高射机枪子弹、7.62X54R步机弹、7.62X63步枪弹、7.62X33卡宾枪弹、7.62X39中间型步枪弹、日7.7步枪弹、日6.5步枪弹、7.92步枪弹……十几种口径制式。现在，非制式的杂旧武器弹药要逐渐停产，全军的统一换装差不多就要到了。

In the shell area, there is also a large workshop. There are seven or eight types of shells that need to be produced in Dalian, and the production line is also very complicated.

In the cannon area, Tang Hua asked the driver to stop and walked into the assembly workshop for inspection.According to the plan of the General Administration of Ordnance Industry, although the self-developed 105mm long howitzer has good performance, it takes up too much raw material and production capacity. In view of the fact that the Soviet Union decided to assist heavy artillery, production was temporarily suspended after the first batch of 18 guns were produced, and the main production 75mm light howitzer.This is the main body-barreled artillery of our army/division at present, and the demand is the highest.In the assembly workshop, 12 75mm light howitzers are lined up, and the final parts are being assembled.

Another workshop is undergoing technical transformation, and it can be seen that the transformation is coming to an end, the equipment has been placed in, and several workers are testing and debugging in the workshop.This used to be the production workshop of the 37mm anti-aircraft gun. In the past, this gun was very useful for attacking the light tanks of the national army, bunkers and artillery towers.

The mortar production area was skipped directly, and Tang Hua let the car drive into the firearms production area.

Here, two very important firearms have begun mass production.

"Minister Tang, this is the Type 50 semi-automatic rifle we produced," said the firearms district manager, "It was imitated according to the blueprint of the Soviet SKS semi-automatic rifle. The first batch of small batches was produced on April 4, and it passed the batch production test on June 15. , 6 pieces have been produced since June 15.”

Tang Hua took the Type 50 semi-automatic rifle from the manager's hand, and it really felt like the Type 56 semi-automatic rifle he had touched back then.Crash the gun bolt, pull the trigger, and clatter it again.It is a bit laborious to unfold and retract the fixed triangular thorns under the barrel, but the mechanism works smoothly.No, there seems to be something wrong.

Tang Hua felt that the barrel in front of the "50 and a half" air duct was a little longer than that of the 56 and a half back then, because the position of the bayonet blade was no longer stuck in a quarter of the barrel.Tang Hua looked around for a ruler, found a tape measure, pulled it out and measured the length of 50 and a half.

"Did you increase the barrel length?" Tang Hua asked.

"Yes, according to Director General Liu's opinion, the barrel of the 50mm is 20mm longer than that of the SKS. Now the full length of the gun is 1040mm. The length of the bayonet has also been lengthened by 20mm."

Hey, Liu Nai, the old Eighth Route Army, the last stubborn of the Bayonet Party.

The length of the bayonet has been increased by 40 mm, which is a slight advantage.The barrel is 20 mm longer, and the muzzle velocity has increased from 735 m/s to 740 m/s. In fact, there is no obvious change. Instead, it is necessary to recalculate the trajectory and re-read the shooting table, which is troublesome enough.

Wait, the first T50 from the General Administration of Ordnance Industry was shipped to Dalian. So that's what they used computers for?

"Bring me some bullets." After Tang Hua finished speaking, he picked up the 50 and a half and walked to the foot of the small mountain bag used as a shooting range outside the workshop.

After taking the bridge clip with 10 rounds of bullets, Tang Hua pressed the bullets into the magazine, "bang bang bang bang bang" at a target 100 meters away, and quickly shot out 10 bullets.Then he loaded another 10 bullets, and finished it in one breath.