Chapter 120

Almost all the tanks in the Han Dynasty inherited from the Xiong Kingdom and took the route of medium-sized tanks. One of the great views is the restriction of bridges.

In the south of the Han Dynasty, water networks are everywhere, and bridges are needed everywhere. If the bearing capacity of the bridge is not enough, the tank will crush the bridge at any time.

Therefore, under such circumstances, Han did not dare to develop heavy tanks.

Now, once large caliber artillery, high-power engines and heavy armor are assembled, the self weight must exceed 50 tons. Can the country accept this situation? Can the army accept it?

After all, the formal indicators of the new tank have not been issued yet. Everything is pre research, and it is only pre research for each subsystem. In this case, what standard should we design according to?

You can discuss it with Qin Guan.

Thinking of this, Zhu Lao said, "Qin Guan, do you think the weight of our new generation of tanks is the most appropriate?"

"More than 50 tons." Qin Guan said, "if you want to achieve a compromise between firepower, protection and mobility, 50 tons is the most basic number. With the continuous development of armor, this weight will increase, even to 58 tons and 68 tons. If it is lower, what is the difference between it and 59 on the battlefield?"

Qin Guanhua's words brought a great hint to Zhu Lao.

Yes, if your side is only limited to 59 tanks with more than 30 tons, it will never make progress. If you want to develop, you must improve the weight index. When it is expanded to 50 tons, everything will be easy.

A 1500 horsepower engine to drive a 50 ton tank should be more than enough.

"However, our war in the South will be greatly affected." Zhu Lao continued. It seems that there is no solution to this problem.

"Our tanks were not originally prepared for the south." Qin Guan said, "what are there in the south? Now in the border war, light tanks are enough. Do you need our main battle tanks?"

It's impossible to fit all terrain. If a conflict breaks out in the south, you won't be able to get your own main battle tanks.

"If we want to develop new tanks, we should aim at an enemy, that is, the bear country in the North!" Qin Guan continued: "our combat area will be on the grassland. The endless grassland is the stage for our tanks. In this case, what harm is there for the tanks to have more weight?"

On the issue of combat objectives, our new tanks are not prepared for the south at all, but for the north. Now, the bear country in the North has been eyeing for many years. In times of crisis, even the capital is ready to move.

In a few words, Qin Guan solved Zhu Lao's worry. Yes, he will explain this point at the superior meeting again.

It is impossible to satisfy both the South and the north. The current situation is like this. We must aim at the biggest threat, the bear country in the North!

Now even the introduction of a 105mm gun production line has to be sneaky, for fear of stimulating the people of Xiong Guo. The new tanks developed are against Xiong Guo.

"Besides, our country has begun to enter a new era. With the development of time, the construction of our South will change with each passing day. Buildings rise up and bridges cross rivers. Therefore, in a few years, the bridges in the South will be enough to bear the passage of our tanks. We don't have to worry about it."

Qin Guan has more confidence in the construction of the motherland. The title of infrastructure crazy devil is not in vain.

Nothing can be developed without increasing the self weight of the tank. We must not let a simple self weight limit ourselves.

"What about our tank guns?" Zhu Lao continued: "now, the tanks in Hans and other countries have a caliber of 120mm, while those in Xiong are 125mm. Which caliber do you think is better?"

"The bigger the better." Qin Guan was almost without thinking. In his mind, he was still thinking about the majesty of 99 tanks in the future.

"Strange, how can this shell be separated?"

Just then, a technician moved the shells out of the tank.

The shell is divided into two parts, cylindrical propellant and pointed warhead. These two parts look strange.

When he saw the ammunition, Qin Guan's mind suddenly reflected that he had forgotten something.

Now, relying on the knowledge of previous lives and the system in your brain, it seems that you are omnipotent, but you still have a lot of negligence.

For example, the difference between full packaging and sub packaging.

Hans' 120mm tank gun uses fully loaded ammunition, warheads and propellants are together, while bear's 125mm gun is divided into two parts.

When loading, Hans only needs to install it once, and bear needs to install it twice.

Of course, this one is no big deal, because Xiong Guo's tank is an automatic loader and does not need people to operate it.

However, there will be a big problem, that is, the efficiency of armor piercing bullets!

Tanks are the king of land warfare and want to destroy enemy tanks. Therefore, for tanks, most of the tank guns with high bore pressure are armor piercing bullets.

Thin and long kinetic energy pits to destroy enemy tanks, in addition to their own materials, another more important thing is the aspect ratio!

The greater the ratio of the length and diameter of the core, the better the armor piercing performance of the warhead.

Because the full loaded ammunition is together, the core can extend to the end of the propellant, which is equivalent to the length of the whole shell, that is, the length of the core.

The warhead of the sub packed ammunition is only half its length.

Therefore, no matter how developed, sub loaded warheads will not have the high armor piercing ability of fully loaded warheads!

At the thought of this, Qin Guan had a big head for a while. For armor piercing shells, it has a lot to do with the caliber of artillery and its structure. This congenital defect is almost the death hole of 125mm artillery!

Why not design an integrated ammunition? Because the automatic loader doesn't have that ability, it can only be loaded separately.

Manual loading? For tall Westerners, loading 120 mm shells is the limit. If the 125 mm shells are integrated and loaded by the Han people who are not tall, it is definitely a tragedy.

Qin Guan thought for a long time, but he was no longer as smooth as he had just been. Zhu Lao also saw the difference of Qin Guan and asked, "what's the matter?"

"I suggest that we get a leopard-2 sample car and compare it with the T-72 sample car. Through the comparison, we can choose the most suitable tank for us." Qin Guan said: "the selection of tanks is very important. We must not be hasty."