The most obvious feature of the 59 tank is the five pairs of road wheels. No matter how the upper turret is changed, the chassis will not be greatly changed. After the change, it is no different from simply making a brand new tank.

Those models that have been modified to 120 mm main gun and 125 mm main gun are naturally not Qin Guan’s dishes. What Qin Guan needs to find is the most common and classic tank.

59D.

The round half-egg-shaped turret inserting tube, coupled with the configuration of five pairs of road wheels, is the most obvious feature of the 59 tank.

In the 1950s, the integrally cast half-egg turret was the best design. Not only can it perfectly form a variety of ricochetes, it also has enough larger artillery in the car.

At the same time, the 100 mm caliber D10 tank rifled gun is the main firepower of the Type 59. The V54 water-cooled diesel engine with a power output of more than 500 horses provides the Type 59 tank with a maximum speed of up to 50 kilometers per hour and a maximum range of 440 kilometers.

It can be said that in the era when it was just born, the Type 59 tank had a trans-epochal significance. However, with the passage of time, the 59 tank gradually got older and all its indicators fell behind. Therefore, for its improvement, The most urgent.

At the beginning, the first improved model was 59A, which was equipped with a laser rangefinder and light spot injection simple fire control system, which initially possessed the ability to strike statically against motion.

However, its improvements did not meet the needs of the tank troops, so, then, the improvement of the 59D tank finally became a master.

The 83A 105mm rifled tank gun with a long barrel. When the Type 86 armor-piercing projectile is launched at a distance of 2000 meters, the armor-piercing ability is 440 mm; when the Type 93 long-wing stabilized projectile is launched, the armor-piercing ability is close to 500 mm. The gun can also launch a 105mm-caliber artillery-launched missile developed by my country. The missile has a maximum range of 4 kilometers and a maximum depth of 700 mm.

Regardless of whether the data is watery or not, in short, after the use of this 105mm rifled gun, it is already possible to disregard all the tanks in the entire north. Whoever refuses, let the horse come, and one shot can penetrate your main armor!

The fire control system matched with the tank gun has carried forward the characteristics of the Han country. It adopts a light spot injection fire control system and an integrated two-way stabilized gun sight system, a second-generation light spot and hydraulic/electric stabilization system to improve the fire The ballistic control computer is simple, effective, low cost, and capable of shooting while on the move.

At the same time, in order to increase protection, additional armor was added.

Therefore, from the outside, the tall and long 105mm tank gun, coupled with the additional brick-like armor on the front of the tank, is the most obvious feature, and it is easy to find.

In later generations, the 59D is still in service, but because it is improved from the previous tanks, a considerable part of the tanks have reached the end of their life. These tanks have been sealed in the tank cemetery until the motherland needs it. Then re-open the seal and fight for the motherland.

Such 59D tanks are quietly arranged in a corner of the cemetery, there are hundreds of them!

System exchange, start!

After the familiar spatial fluctuation, Qin Guan returned to reality after the exchange was completed.

The old 59 tank in front of me has disappeared. What I showed in front of me was a brand new 59D tank with a fresh smell of green paint on it.

The expensive 105mm barrel is longer than the standard 105mm gun provided by Niuguo.

The longer the barrel, the more work the gunpowder gas can do inside. The greater the kinetic energy of the cannon, the higher the initial velocity when the cannonball exits the muzzle.

This also means that the power of the shells is greater.

Therefore, how to improve the power of artillery, some countries use the caliber, and some countries use the length of the barrel.

At the same time, there is another advantage. When the contract was signed with Niu Country, this 105 gun could be used by itself, but it could not be exported to a third party, and the extended 105 gun was not restricted.

As a former military fan, as a worker and director of a tank factory in this life, Qin Guan found that his most important thing was still tanks.

Now, 59D appeared in front of him arrogantly, and the joy in his heart was also spontaneous.

"Crunch." The outside door opened, and Major Yang walked in: "Another tank has already been arranged. Hey, why is this tank so strange?"

As a military representative, Major Yang was very clear about the 59 tank, and he could see that the gun barrels were different at a glance.

On the outside of the barrel, there is a layer of thin alloy thermal sleeve. This is to prevent the barrel from expanding and contracting under the sun, resulting in slight bending and lowering the accuracy of shooting.

And in the middle of the barrel, there is a smoking device. When the tank gun fires, it is accompanied by huge smoke. A small amount of thick smoke comes out of the muzzle, and a large amount of black smoke passes through the tail of the tank gun. The door is left in the turret, and the people inside are inhaling poison gas, which is not good for health.

The smoking device in the middle can effectively remove the smoke from the barrel. From the appearance, it is a bit thicker than the barrel.

After just one glance, Major Yang knew that the gun barrels were different. When he turned around, he saw the closely-arranged bricks in front of the turret.

"Additional armor?" Major Yang asked.

"Yes, this is the most suitable improved model of our 59 tank. Now, our technical conditions have been reached. As long as we modify it according to this standard, the performance of the 59 tank can be greatly improved." Qin Guan said : "This is the prototype I modified first."

Speaking of this now, Qin Guan was not ashamed. He was remodeled and put it outside without using anything. Of course no one believed it.

However, Major Yang believed it. He knew that Qin Guan's superpower was so powerful.

"This tank, facing the tanks of the bear country, can be carried down frontally. Before our new tanks are put into service, a large number of our old tanks can be improved according to this model." Qin Guan continued.

The improvement of the old tank is more meaningful than the research and development of the new tank. The progress will be faster and the cost will be lower. Now, as long as this tank is improved, there is no need to fear the threat of the bear country for the time being.

Major Yang nodded: "I will report to my superiors immediately and ask them to test the performance of this tank. However, Qin Guan, if this tank is improved, it may not fall into the 4447 factory."

Major Yang took a shot in advance. Although the improvement of the project was promoted by Qin Guan, it may not benefit them from the 4447 factory.

In Prairie City, there are two tank factories. Plant 4447 is the second machinery manufacturing plant in Prairie City.