Historically, in April 1942, the German Army Weapons Bureau finally woke up from the dream of victory and began to solicit anti-tank weapons from the public.

The German Army Weapons Bureau asked for a grenade that could compete with the GePzGr61 (an anti-tank grenade developed by the SS out of its own pocket, piercing 100 to 125 mm deep and only attacking targets within 80 meters, and praying to God from 80 meters away). A single hand-held weapon of equal power has an effective range of only 30 meters. As for the weight, size, and firing method of this thing, it was not mentioned in the tender of the Weapons Bureau, and it was clear that the war situation at the front forced this group of bureaucrats to starve.

At this time, a weapons research and development expert, Einrich . Dr. Longweller, who took a year to develop, a hand-held jet anti-tank grenade.

The doctor had previously developed an anti-tank grenade, but because of its heavy weight, it was difficult for soldiers to throw it out of the safe zone, and the smaller ones turned into suicide attacks, and this design was certainly not favored by the army.

From then on, the doctor began to consider the development of an anti-tank weapon that relied on jet propulsion, because it would not require soldiers to throw it with great effort, which was very much in line with the German logic.

The design he came up with was named the FPatr42 jet anti-tank grenade, and the warhead was a hollow shaped charge warhead with a diameter of 80 millimeters, followed by a launch tube with a diameter of 29 millimeters, which was the prototype of the "Iron Fist".

At that time, the Army Weapons Bureau was very interested in this weapon, but there was an obvious flaw in the original design, that is, the length of the launch tube was too short, perhaps because the doctor's thinking had not yet departed from the anti-tank grenade, and the result was that the total length of the launch tube was only 35 centimeters, and it was like a drum urn and a golden hammer in the hand.

Because the launch tube is too short, it is difficult to control this thing when it is launched, and if you are not careful, you will be ignited by the tail flame from the launch tube, so the army is not ready to mass-produce this weapon until this problem is solved.

When the news came, Dr. Longwell was in a hurry, this thing had already cost a lot of research funds, and he was still waiting for the rice to be cooked at home. Since you think it's short, then make it longer, and if you think twenty centimeters is not enough, then extend it directly to one meter, and change the one-handed hammer to a two-handed hammer, so that the old man should be satisfied.

After improving the length of the launch tube, adding improvised sights, and attaching a wooden tail to the warhead, the famous "Iron Fist" anti-tank grenade was finally born.

This is the story of the birth of the "Iron Fist" in history, but now that Xu Jun is here, this weapon has become the "invention" of the Führer. Before the British Campaign, Xu Jun had already equipped his troops with the initial type of "Iron Fist". It is said that it is the initial model, but in fact, it is simply a copy of the historical "Iron Fist" 100 type.

Many people think that this is an anti-tank rocket, but in fact it should be classified as a hand-held recoilless gun, because the warhead of the Iron Fist is not a rocket engine, but a conventional gunpowder propulsion method, the propellant will be completely burned out in the launch tube, pushing the warhead to fly to the target, and at the same time, the flame gas will be sprayed out of the tube from the tail of the open launch tube, canceling out the recoil generated when launched.

As a result of this firing method, the Iron Fist has almost no recoil when used, and at most the nozzle jumps slightly upwards when the warhead leaves the launch tube. On the eve of the collapse of the Third Reich, the Nazis organized everyone from seven-year-old children to seventy-year-olds, and Germany's men, women, and children were forced to use their iron fists and rudimentary national rifles to stop the steel flood of the anti-fascist alliance.

However, firing the Iron Fist must first be trained by professionals, because for the layman, this weapon still presents a certain danger.

The main danger comes from the tail flame generated during launch, which is up to three meters long at the moment of launch, so if you launch in the wrong attitude, you can easily burn yourself.

When firing the iron fist, it must be ensured that there will be no ammunition and other flammable items within three meters behind you, and at the same time, there can be no wall blocking, otherwise the flames will roll back and burn the launcher, here it should be pointed out that some people mistakenly think that the iron fist cannot be fired in the room, in fact, if the room is large enough or there is no obstruction within three meters behind him, the iron fist can also shoot indoors.

When firing the iron fist in a lying position, you must pay attention to the position of your legs, do not enter the spray range of the tail flame, and pay attention to the elevation angle of the launch when launching in a kneeling position, so as to avoid the tail flame spraying to the ground and burning your calves. However, these tricks can be mastered with some simple training, and they are not very difficult to do.

Xu Jun was not satisfied with the current level of jet-propellant grenades at the end of World War II, he wanted an anti-tank weapon similar to an RPG. In the eyes of Xu Jun, who has mastered a lot of weapons knowledge, there is still a very large room for improvement in the initial type of the "Iron Fist" of the German army.

First of all, Xu Jun needs to choose between a one-time launch or a repeated reload and launch mode, the former has the advantage of not occupying the army's establishment, as long as the soldiers are willing, everyone can carry one or two, and the latter has the advantage of saving the material of the launch tube, but the corresponding must be divided into a soldier in the squad to carry and operate this weapon.

After repeated consideration according to the characteristics of the Eastern Front of World War II, Xu Jun finally decided to produce an iron fist that was launched at one time. His reason is relatively good, compared with the reloading launcher, the disposable iron fist is more conducive to increasing the density of anti-tank fire on the defensive line, so that the Soviet armored forces will fall into a sea of individual anti-tank weapons.

As for the problem of saving materials, in fact, the seamless steel tube launch tube used by the Iron Fist can be used repeatedly, and theoretically as long as there is no obvious trauma to the tube body, then it can be fired repeatedly more than ten times, but because it needs to be recycled to the manufacturing plant to reload, many soldiers will abandon it on the position at will when it runs out.

At one point in history, the Germans also launched a prize recycling campaign for Iron Fist launch tubes, and for each used launch tube handed in, three cigarettes could be exchanged from the quartermaster.

Xu Jun feels that compared with the effect of this weapon, it is tolerable to produce some waste, after all, Germany is no longer troubled by the shortage of raw materials, and Nazi Germany, which has been deeply limited by raw materials in history, has produced more than 8.25 million iron fists of various types, and the number is more than 10 million at the moment.

Xu Jun also prepared a simple solution to deliver semi-finished warheads to the front line, set up assembly workshops directly on the front line, and load the launch tubes recovered from the troops.

The advantage of disposable launch tubes is also that even if they are captured by the Soviets, they can only be used once, and they cannot reload this weapon, and the repeated reloading type is likely to be equipped by the enemy and cause serious damage to the German armored forces.

At present, none of the main tanks equipped by Germany can withstand the initial type of iron fist, unless it is the No. 5 heavy tank that is being finalized, and of course the situation on the side of the Soviet Red Army is not much better.

The German army is now equipped with the first model of Iron Fist, which has the same armor-piercing ability as the historical prototype, and the metal jet produced by the shaped shaped warhead can penetrate the homogeneous steel armor two hundred millimeters thick, which is enough to pose a lethal threat to most tanks in the world, especially attacks from the side and back, and no tank can withstand the attack of such warheads.

But Xu Jun found that the power of this warhead can actually be enhanced, because Germany lacked all kinds of rare metals in history, so everything likes to be made of steel, and they use steel to make warhead shells and launch tubes, as well as the most important shaped shaped dome.

The medicine hood of the Iron Fist was stamped with a thin steel plate, and in fact, the shaped hood of the shaped charge weapons developed by most countries at that time was made of steel, and it was not until the late World War II that Britain and the United States began to use other more effective materials.

Xu Jun knew that the best material for the medicine mask was copper, which he was the only one in the world who knew about it, and at this time German researchers had never conducted similar research. The British were engaged in research activities on shaped charges, and their plan included the search for the most suitable materials for the manufacture of the drug-shaped shield, and the British armored forces were badly beaten by the British Campaign, so they very much wanted to be equipped with similar anti-tank armor-piercing grenades.

Germany's copper resources are not abundant, historically need to be imported from Sweden and other countries, but there are many sources to choose from, whether it is the Americas and Africa, there are rich reserves of large copper mines, such as British Northern Rhodesia (Zambia), Xu Jun knows that several giant open-pit copper mines have not been developed at this time, he has sent people to negotiate with the British, ready to work with the other party to develop together.

The reason for pulling the British together was that the local British gentlemen were very skilled in dealing with the local blacks, and without the help of these land snakes, it was difficult to develop the minerals in a short time.

Xu Jun also improved the shape of the warhead hood and the drug-shaped cover, narrowed the diameter of the warhead, so that it was closer to the RPG of later generations, the experimental department of the Ordnance Bureau has carried out several tests on the Führer's warhead improvement program, and the preliminary results are quite gratifying, after replacing the copper drug-shaped cover and the new charge, the penetration of the warhead has increased by more than 30 percent, and it can now penetrate 260 mm of homogeneous steel armor plates, which means that there is no tank that can block the blow of this thing.

At the same time, Xu Jun also improved the propellant of Iron Fist, and everyone may not believe that the propellant used by Iron Fist in history turned out to be ordinary black powder, which caused the gunpowder to fail to burn out in the tube when firing, causing a large amount of tail flame, and at the same time easy to hurt the shooter.

Xu Jun ordered the experts of the Ordnance Research Bureau to develop a new type of bistatic propellant that effectively increased the thrust of the warhead, increased the muzzle velocity and range of the warhead, and also replaced the bulky wooden tail with an automatically ejected razor-shaped tail, Xu Jun's goal was to increase the effective range to 200 meters, and required that at least at this distance there would be no serious deformation at the end of the trajectory.

Finally, Xu Jun also improved the shape of the launch tube, and equipped it with a simple pistol-style grip, which is more convenient for soldiers to hold and aim than the original push-button fire.

Hu Ge. Schneider, as in the past, has become the designated manufacturer of Iron Fist, and is currently fully engaged in the construction of new production lines, otherwise it may be difficult to achieve the production target set by the Führer.

PS: Thank you for your support, I know that some book friends don't like to read weapon introductions and want to see the plot,

However, the current popular science content of weapons, in addition to allowing some book friends to have a visual understanding of new weapons, is also to pave the way for the later plot.

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