Bright Sword starts with the grenade flat.

Chapter 196: Fighting Black Hawk on top and fighting Abrams on the bottom RPG
Liu Xiu was relieved after seeing through the map of enemies and friends that Wu Qianli's interspersed seventh company did not cause much damage.

At the same time, Liu Xiu also began to think about the structure and production methods of RPG.

RPG is just an abbreviation, which means portable anti-tank grenade launcher in Crocodile language.

Of course, RPG was not born out of thin air. It was born under the influence of the Tekken recoilless rifle that won the country in World War II.

Although RPG has a series of models, when it comes to RPG, what is basically mentioned is RPG7, which is the seventh model of RPG, because this model is the best, and it is also the model that is canonized.

The first to appear in the RPG series is naturally the RPG-1. Its launcher is 100 cm long, weighs 2 kg, 3.6 kg after loading, and has a caliber of 30 mm. The PG1 warhead is used. The maximum diameter of the warhead is 70 mm, so the warhead was also called PG70 at first. There is a hoop at the end of the PG-1 warhead that also serves as a stabilizer. The hoop is placed outside the launch tube when launched. PG1 can penetrate 140 mm of homogeneous armor and has a maximum effective range of 75 meters.

The main body of the RPG1 launcher is a one-meter-long steel pipe, and the rear is covered with a wooden cylinder to insulate and protect the shooter. During the test, RPG1 exposed problems such as insufficient quality of propellant and insufficient warhead penetration depth and range. This is terrible. On the battlefield, soldiers risk their lives to attack enemy tanks, but they rarely hit and fail to destroy them. Isn't this inviting firepower to themselves? Therefore, RPG1 has not been able to mass-produce equipment. After RPG2 appeared, development stopped in .

RPG-2 was developed by GSKB-30 Design Bureau in 1. It performed better in comparative tests with RPG-2 and became the pioneer of the RPG family. The RPG7 began to be produced by the "Bazart" company in . The company later also produced various models in the RPG family, including the famous RPG-.

The RPG2 has a total length of 120 cm and a diameter of 40 mm. The rear part is also wrapped in wood. It weighs 2.9 kg empty and 4.7 kg loaded. It uses PG2 grenades. The PG2 grenade has a maximum diameter of 82 mm, a range of 180 to 2 meters, and can penetrate mm of homogeneous armor. The PG warhead is similar to the "Iron Fist" warhead. The tail is inserted into the launch tube as a whole, and six stabilizing fins unfold after launch.

Then in 4, Bazart developed two rocket launchers, RPG7 and RPG4. RPG2 is an improvement of RPG45. The launcher caliber is increased to 82 mm, and the warhead diameter is also 7 mm. It failed in the comparative test with RPG and was abandoned in .

Compared with other anti-tank rocket heads or recoilless guns, the RPG7 has always topped the list due to its extremely cheap price and easy portability.

And the most important thing is the application of super-caliber ammunition, which allows the RPG to have a 100-mm effect even if its caliber is only 40 mm.

Of course, the most important thing is its low price. Compared with other individual anti-tank weapons, the price of RPG is only a few hundred meters, while other tank weapons easily cost tens of thousands, such as Tekken 3 and Gustav Unlimited. Recoil rifles, etc.

Secondly, the simplicity of RPG manufacturing is the basis for its cheapness. The main part of the RPG launcher is a smooth-bore steel pipe with a diameter of only 40 mm and a length of less than one meter. Naturally, it is cheaper than those steel pipes with a caliber of 70 or 80 caliber.

Because of this, in the sixty years before Liu Xiu's time travel, the production quantity of RPG7 has exceeded nine million. Of course, the largest producers are naturally the imitations of those industrially backward countries.

This kind of low-cost and simple anti-tank weapon has been used by those countries with backward industries. In order to deal with a certain unreasonable and unreasonable strongman, a large number of guerrillas equipped with RPG not only destroyed the M1 Abrams , and even shot down a Black Hawk, which caused a certain headache and was helpless.

Of course, the main reason why RPG7 is called a god is its excellent performance and high cost performance.

The RPG7 was produced from the 7s until the s before Liu Xiu's time travel. It has not been replaced by other models after sixty years. This shows the excellence of the RPG.

The RPG7 is also a launch mode that combines two launch modes: a rocket launcher and a recoilless gun.

First, the RPG will ignite the powder in the launch tube in the firing mode of a recoilless gun, allowing it to generate thrust to push the rocket ammunition out of the launch tube, and then ignite the rocket booster on the rocket at a distance of more than ten meters.

At this time, the rocket will increase from the original initial velocity of 170 meters per second to an initial velocity of 300 meters per second. Of course, RPG ammunition also includes anti-personnel ammunition that is fired directly without recoil, without adding rocket boost, and looks like a stick.

This kind of ammunition is cheaper than serious rockets. If the price of a serious anti-tank rocket-assisted shaped armor-piercing ammunition is 200 meters per round, then this kind of anti-personnel ammunition The price may only cost 20 meters per shot.

As Liu Xiu used Thinking Explosion again, Liu Xiu recalled the RPG schematic diagram he had seen before traveling and analyzed it. Then Liu Xiu began to draw the RPG production method on paper.

First of all, the most difficult part of RPG is the launch tube with a diameter of 40 mm.

Unlike ammunition, which can be manufactured using the pouring method, since the RPG uses recoilless launch, the 40mm launch tube must be able to withstand a certain pressure like a gun barrel.

If the RPG is just a simple rocket barrel launcher, then the launch tube can be made of plastic or even wood. After all, the launchers of this kind of rocket barrel are disposable and thrown away after being fired.

However, the RPG launch barrel is not disposable, so it naturally needs to be forged like a gun barrel.

Fortunately, there is a steel rolling mill here in Liu Xiu, so forging a 40 mm seamless steel pipe is not a problem.

After the drawings were obtained, Liu Xiu thought that if he could produce the RPG earlier, he would be able to use the enemy's Pershing tanks earlier.

So he flew back in the Peregrine Falcon overnight.

Of course, because it took some time to draw the drawing unit, it was already morning when Liu Xiufei regained his temper.

After all, Liu Xiu also worked part-time as the director of the steel rolling mill, so at Liu Xiu's request, an RPG rocket barrel and matching rockets were produced in less than half a day.

Due to time constraints, Liu Xiu also designed only two types of ammunition.

One is the super-caliber ammunition for tanks, the kind with rocket boosters, shaped armor-piercing ammunition.

There is also a type of anti-personnel bomb that is purely used to deal with personnel. It has no rocket boost and only relies on recoilless rifles to shoot anti-personnel bombs. Because this kind of ammunition is relatively light, easy to carry and simple to produce, it is naturally the best choice to deal with machine guns and other firepower points. Direct fire The firepower makes it more accurate than a mortar.

After confirming that there was no problem with his design and that it could be produced according to the drawings he drew, Liu Xiu was thinking about how to report the RPG to his superiors. After all, although Liu Xiu was the director of the steel rolling mill, don't forget about the steel rolling mill. The factory that Liu Xiu was asked to use to produce fighter planes was not to produce RPGs. It would be fine to produce one or two as an experiment, but not for mass production.

Just when Liu Xiu was thinking about how to talk to the superiors, the superiors actually found Liu Xiu and asked Liu Xiu if he had any more powerful anti-tank weapons.

Yes, the soldiers aiding North Korea also brought shaped armor-piercing grenades fired from grenades that could deal with Japanese tanks.

(End of this chapter)