Xu Jun's database does not have any drawings of this howitzer, but NATO also bought a lot of American weapons back then, how could there be no such thing in the museum, to be honest, the technical content of the whole system is not very high, of course, this is only for some developed industrial countries, and it is really difficult to reverse copy it for countries with relatively backward materials and processing technology.

Its biggest difficulty is actually in the special ammunition, the requirements for processing accuracy are very high, there is no large-scale precision manufacturing technology, it is difficult to control the quality of the product, if the defective rate is high, it will seriously affect its production cost, when the cost-effectiveness ratio exceeds a certain psychological value, then this weapon loses the value of equipping it, because there will be a bunch of cheaper solutions to replace its existence, such as gun grenades and recoilless guns, or a variety of grenade projectiles.

Germany's precision machining technology was at the forefront of Europe at that time, and of course there would be no problem of not being able to manufacture such ammunition. The 40x43mm low-speed grenade equipped by the US military has developed a family, and more than a dozen types of ammunition with different performance and functions have been developed in the past half century, even the most basic shells are enough for five or six models, not to mention the various charges and various special fuses inside.

Xu Jun didn't have the idea of copying them all, he only needed the most basic models now, and the German army was not fighting a special security war, but a traditional regular war.

The Germans would face the enemy face to face, not against the rabble of the jungles of Southeast Asia, but against regular soldiers with systematic military training.

Therefore, the weapons and ammunition of the German army must be adapted to this mode of warfare, and the two sides compete not only in the number of weapons and the firepower delivered, but also in the quality of the soldiers, the command ability of the officers, and the most critical logistical supply ability.

The type of ammunition must be harmonized, otherwise it will inevitably lead to a catastrophe for the logistics system. Xu Jun prepared four types of ammunition, the first is a conventional high-explosive anti-personnel grenade, which is used to deal with unarmored targets, loaded with a formed fragmentation warhead, which can produce more than 200 pieces of shrapnel after exploding, and the lethal zone is five meters in diameter, but shrapnel still has a lot of lethality within ten meters.

The second is an anti-armor grenade, which uses a hollow charge warhead that can penetrate fifty mm thick armor, which is used against lightly armored vehicles and steel plate infantry bunkers, and it is a bit difficult to attack medium tanks, so it is best to use professional anti-tank weapons against tanks.

The third type is the white phosphorus smoke bomb, which is filled with white phosphorus as a smoke and incendiary agent, and after the explosion, the white phosphorus inside will spread around, burning and releasing a large amount of white smoke, instantly creating a smoke belt with a diameter of about seven meters, and can be maintained for about two minutes under weak wind. This kind of smoke grenade is mainly used to attack enemy positions and fortified areas, block the view of the opponent's fire points, and can also set fire to enemy positions, killing and injuring enemy personnel while creating panic and chaos.

The fourth type of ammunition is an flare, which is detonated in the air at a distance of about 150 meters after launch, and a small parachute with an illuminator is ejected, which can provide half a minute of illumination time, not to be too short, in a fully alerted position, half a minute is enough time for the soldier to see the situation in the target area, and be ready for all responses.

Xu Jun expected that the installation of howitzers would even change the mode of urban warfare of the German army. In regular combat, important targets on enemy positions would be repeatedly named by the Germans with various types of artillery and rapid-fire weapons, leaving little room for gun grenades. However, when it comes to street fighting in towns and in densely fortified areas of enemy troops, the value of the howitzer is revealed, it is the best weapon against the stubborn enemy in the houses and barricades, and it is a matter of clearing a hidden fire point in the house, that is, a grenade or two.

If the war in Europe continues now, then Xu Jun will not come up with this equipment anyway, because the shells of this ammunition are all stamped and cast from aluminum alloy, and if the British naval blockade is not broken, then Germany simply cannot afford to consume the materials for making this ammunition.

There was a shortage of bauxite in Europe, and the only countries with large-scale bauxite mines at that time were Hungary and France, but in the 40s the combined production of bauxite in both countries did not exceed one million tons, which could not meet the needs of the whole of Europe. Therefore, Europe needs to import large quantities of aluminum from South America and Southeast Asian colonies every year, and the main production areas are Dutch Suriname and Dutch Indochina.

Extracting aluminium requires a lot of electricity, which is not something that non-industrial countries can afford, and Germany's Ruhr industrial region has a strong smelting capacity, and because several large hydroelectric and thermal power stations in the vicinity provide sufficient energy, so as long as Germany has access to raw materials, production is not a problem at all.

Now that Germany has gotten rid of the historical predicament and is no longer plagued by a lack of materials, as long as it is willing to spend money, aluminum is a material that can be said to have as much as it wants. (Xu Jun: We're pure Europeans, if you don't believe me, I'll build an H39 for you to see.) Weierle: Don't be impulsive, Führer! ∑(っ°Д°; )っ）

And the Führer was not satisfied with imports, he had long set his greedy eyes on the rich land of Africa, Guinea is still a French colony, and this country has the world's largest bauxite deposits, 7.4 billion tons alone, which occupies a quarter of the world's bauxite reserves.

How could Xu Jun put a bunch of treasures and not develop them, at present, almost all of Africa is a European colony, at this time, there are no black civil rights organizations, black Americans are still sitting in the quarantine area of the bus, any plundering of Africa is in line with the values of the time, oppressing colored labor, and it is regarded as a natural power in the entire European and American culture.

Germany had already gained the right to explore and exploit minerals in the colonies of Britain, France, Italy, Belgium and Portugal in Africa, and of course it did not take it for free, and Germany would also give shares in the other company's enterprises to offset the funds for the purchase of land.

Xu Jun has a number of valuable mineral information in his hands, which greatly saves the time and money of exploration, some only need machinery to enter the field to mine, and the biggest cost is consumed in the transportation of ores, but for Europeans with advanced road construction technology, building a road or railway is not a difficult thing to do, and it takes nothing more than manpower and money.

The war in Europe has damaged the vitality of the major capitalist countries, and the beasts are all hungry, maybe in the civilized world they can still pretend to be a group of gentlemen, but in the reckless Africa, they will unscrupulously expose their true colors, behind the prosperous market scene of Europe, I don't know how many African bones are buried.

Xu Jun is called an apostle of God, not a virgin, he will not jump out to say anything about freedom and human rights, as a fascist dictator, saying that kind of thing will make people think that he is playing irony.

If he can't cross the current threshold, his own survival will be difficult to guarantee, where can he take care of the rights and interests of the African people, of course, he will restrict certain behaviors in the process of plundering, and invest in some local infrastructure as much as possible, which can be regarded as a small return.

Turning back to the topic, at present, Germany is not short of raw materials at all, steel, aluminum and oil bombs are readily available, and the only thing missing is the time to convert these resources into actual combat effectiveness.

The 40mm grenade is still on the drawings, and Krupp technicians have already carried out a series of related tests, such as a safety fuse with a complex structure. In fact, the safety fuze used by the Americans in history is not a newly developed technology, and the inertia safety technology has long been used in the fuze of various anti-aircraft guns, and even the grenade designed by Italy also uses the inertia insurance.

To put it simply, because of the effect of rifling, the warhead begins to rotate continuously after leaving the muzzle, and the inertia generated during rotation causes the internal structure of the fuse to rotate accordingly, until the warhead turns to a predetermined number of turns, the guide hole between the firing pin and the fire cap is finally connected into a line, and the movement of the firing pin is no longer blocked, and then the fuse is considered to have entered the combat state.

Speaking of the whole process, it seems to take a long time, in fact, it is only a fraction of a second, at this time, the grenade flies out about three meters away, and hitting an obstacle at this distance will not detonate the grenade, avoiding the accident of injuring one's own people.

Xu Jun made up his mind to arm his soldiers to the teeth, whether figuratively or literally, in his opinion, if consuming a ton of steel could save a soldier's life, then consumption would be, and then he would be able to obtain a veteran with actual combat experience, which at some point would be worth more than a hundred tons of steel.

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