February 2, 1942, was a day of victory for the Japanese. Pen, fun, pavilion www. biquge。 info

The Japanese army took the Indonesian island of Ambon from the Dutch at a very slight cost (55 killed and 135 wounded).

On this day, the Japanese army, which was in full swing, began to attack Port Moresby, an important port on the island of Papua New Guinea, and the Southeast Asian battlefield could be said to be the world of the Japanese and the Axis powers.

In the European theater, however, the Axis powers began to find themselves at a disadvantage.

It was on this day that prototypes of new Soviet tanks and self-propelled guns began to be tested in Kubinka. After passing the tests, these new monsters will be put into production and will pose an even greater threat to Germany.

Located 63 kilometers west of Moscow, Kubinka is a small town with a population of only a few thousand.

Although the town was small in size and small in population, its status was extremely important for the Moscow Region, and indeed for the entire Soviet Union.

It is in this town that the country's famous 22nd Armored Research Test Site (22-й_научно-испытательный_автобронетанковый_полигон) is located.

This armored test site is one of the most important armored test sites in the country, and a lot of data on Soviet tanks was collected in this place, so the latest SU-152, SU-122, SU-100 self-propelled guns, as well as IS-100, IS-122, T-44 tanks were sent there for testing.

A ZIS-101M sports car drove up to the door of the armored test site No. 22, and a Red Army soldier in a warm military uniform in winter walked up to the car and demanded that the occupants of the car show their documents.

The occupants of the car opened the window, smiled kindly, and "obediently" handed his documents to the young soldier.

The soldier also smiled, respectfully took the document from the young man in the car, he glanced at it, confirmed the identity of the other party, and respectfully handed the document back, and then saluted a standard Soviet military salute and said: "Good morning, Comrade General!" ”

"Good morning, comrade. Has the test started? ”

The soldier stood up straight and said in a sonorous and powerful tone: "Comrade General, the test has not yet begun, everyone is waiting for your order. ”

Manturov looked at his watch and thought to himself: "Waiting for my order?" Shouldn't they have started 15 minutes ago? This test was postponed because of my tardiness? ”

He drove the car in, found a place to park it, and then hurried to the test site as fast as he could.

"I'm sorry, I'm 15 minutes late, so let's get started." Manturov's words were both an apology and an order. As soon as he gave the order, the test was announced.

The first to begin testing was the IS heavy tank named after Stalin. At that time, the IS tank was divided into two types, one was the IS-100 tank with the D-100 tank gun (100 mm caliber) and the other was the IS-25 tank with the D-122 tank gun (122 mm caliber).

Both tanks were brought to Kubinka for testing, and both had their own advantages and disadvantages, complementing each other's advantages, so the Kirov factory decided to develop two models.

The armor-piercing ability of the D-10 tank gun of the IS-100 tank is stronger than that of the D-25 tank gun of the IS-122, and the tank can carry more shells than the IS-122, and can be loaded with more than 60 shells (the T-54 can also hold 50 rounds, why can't the IS be loaded with 60 rounds).

In terms of armor-piercing ability, the D-10 tank gun with a caliber of 100 mm is indeed stronger than the D-25 with a caliber of 122 mm, but the so-called "caliber is the truth", the destructive ability of the D-25 tank gun is much stronger than that of the D-10 tank gun.

The shells of the D-25 tank gun can cause a violent vibration of the enemy tank without penetrating the armor, causing the armor to fall off, causing the destruction of equipment and parts in the vehicle, and the casualties of the crew, so as to achieve the effect of destroying the tank.

However, the D-10 tank gun must penetrate the armor of the opposing tank in order to inflict damage. So in terms of power, the IS-122 tank is stronger than the IS-100.

In addition to being more powerful, the IS-122 tank's D-25 tank gun can also be used to blow up enemy fortifications, but the IS-100 tank's D-10 tank gun is less capable of destroying fortifications.

The two IS tanks quickly passed the test, penetrating a number of armor plates of different thicknesses, and valuable experimental data was recorded, which is not much different from historical ones.

According to Soviet test standards, the IS-100 tank is capable of penetrating vertical armor up to 150 mm thick at a distance of 1 km with the newly developed hood high-explosive armor-piercing projectile (APHEBC). The IS-122 tank is capable of penetrating 145 mm thick vertical armor at the same distance and using the same type of shell, and is capable of causing armor to fall off without penetrating thicker armor.

(The Soviet test standard is the strictest among all countries, that is, complete penetration, and 15 or more shells out of 20 shells must completely penetrate the target to be considered passed; And the American standard of "penetration" is only to make a small hole that can transmit light, as long as 5 out of 10 shots can make such a small hole, it is considered to be passed. ）

After the completion of the tests of the IS series tanks, it was the turn of the T-44 medium tank.

Because Manturov explained the design direction and inspiration to the Kharkov 183 plant in advance, the T-44, a tank that was supposed to be interviewed in 1944, was built as a prototype in 1942.

This T-44, like the T-44 of the earlier model in history, uses an 85 mm caliber tank gun, and the armor is thicker than the T-34, and its frontal armor is effective against the attack of the main gun of the Tiger tank kwk36.

Due to the use of the same main gun as the T-34/85, the T-44 is almost identical to the T-34/85 in armor-piercing performance, and the performance in other aspects is relatively close, that is, the armor is a little thicker, which can effectively resist the killing of the Tiger tank.

After the completion of armor-piercing tests of the new tank, it was the turn of three self-propelled guns. In terms of firepower, the SU-100 self-propelled assault gun with the D-10 tank gun is no different from the Is-100, which also uses the D-10 tank gun, while the SU-122 is just a version of the M-30 howitzer that has long been used in the car, and the test results have long been expected.

And the SU-20, which uses the ML-152 howitzer (152mm caliber), is significantly inferior to the SU-100 and SU-122 in terms of penetrating capabilities, but its lethality is much greater than that of the rest of the self-propelled guns.

The ML-20 howitzer of the SU-152, like the D-25T of the IS-122, is capable of causing armor detachment and casualties to enemy tanks without penetrating the enemy's armor.

Although the ML-20 howitzer is not as powerful as the D-25T in armor-piercing, it is much more destructive than the D-25T. Historically, the SU-152's ML-20 howitzer was able to break up the German King Tiger tank with one shot, but neither the D-25T nor the D-10T could do such a lethal power, so the SU-152 had a clear advantage in firepower.

Of course, as a self-propelled howitzer, the SU-152 also has the ability to support infantry and attack enemy fortifications. Before monsters such as the King Tiger and the Rat Tank came out, the anti-tank mission could be handled by other tanks and tank destroyers.