Dragon Boat Festival estimates that with today's military technology, it will take at least half a year to imitate the Sden submachine gun mass production.

After all, with the British industrial level at that time, it took more than a year to go from the Great Retreat of Dunkirk to the mass production of Sden submachine guns.

The emergence of the Sden submachine gun can be said to be a helpless act by Lao Ying.

In May 1940, the British Expeditionary Force was defeated on the European battlefield. The British government dispatched a large number of ships to withdraw the British and some of the Allies from Dunkirk to the mainland in the face of German bombing.

However, after these expeditionary forces returned to China, the British government discovered a very serious problem, that is, they came back in a hurry and threw all the guys in their hands on the beach in Dunkirk, France.

If the Germans were chasing at this time, the problem would be serious, so the UK would need a batch of affordable weapons to equip its own troops at this time.

And when fighting with the Germans before, many front-line officers said that the guys in the hands of the Germans seemed to be very good, with a 32 rounds of bullets, and a large piece of them were swept. They could be used as machine guns at close range.

And with the low recoil of using a 9mm pistol bullet, even children can easily control it.

But the most important thing is that their submachine guns are not expensive, and they are suitable for large-scale equipment, which is much cheaper than the American Thompson.

So the British began to make their own submachine guns. The design idea was to use 9mm pistol bullets, and the magazine was directly imitated with the MP40 magazine. It was then simplified and designed with the advantages of the Royal Navy's Manchester submachine gun and the advantages of the MP40 submachine gun. Finally, with the efforts of two designers, Shepperd and Turpin and Enfield Arsenal, a generation of "famous guns" - the Siden submachine gun.

The Sden submachine gun has a total length of 895 mm and weighs 2.95 kg. It fires 9x19 mm pistol bullets, 32 rounds of magazines, a firing rate of 550 rounds per minute, and an effective range of 200 meters.

Overall, the data of the Sden submachine gun are good, and even if the Dragon Boat Festival is copied, it is enough.

But Dragon Boat Festival knows this gun very well, and the Sden submachine gun was also considered a famous gun in World War II.

His point is that it is low-cost, simple in structure, and is suitable for large-scale production.

But he also has many shortcomings. First of all, the gun is too ugly. When the gun was first designed, it was criticized by many people at that time because of its simplicity. It made people suspect that this thing was made by a dark workshop.

The second is that the structure is simple and very simple. The body of the Sden submachine gun is a steel pipe, the sleeve is also round, the buttstock is also round, and the bolt handle is also a small round tube. The spring inside can be seen through the bolt groove. Moreover, this simple design can easily cause sand or soil to get stuck in, which is quite fatal on the battlefield.

Then the insurance of this gun is very unreliable. The insurance of this gun is to pull the bolt onto the butt and then don't go up. It's a bit similar to some of the common snaps we nowadays, but the problem is that the insurance will be scraped off as soon as it is scraped. It's common to have a fire while walking or training. Often the gun falls to the ground and then all bullets are gone. It's like a double-edged sword, which hurts both the enemy and yourself.

Of course, this gun also has its advantages, otherwise the British would not have produced more than three million.

The advantage of this gun is that it has a simple structure and is quite cheap. It costs only $7, which is one-twentieth of the Toms submachine gun.

Moreover, because of the simple structure, there are only 47 parts in total and there is no need for too many assembly lines. As long as there are a few stamping equipment, mass production will not be a problem.

Dragon Boat Festival gave Jin Changxi a detailed explanation of the Sden submachine gun.

Of course, he skipped all the things that the British had spent a year producing, and just explained the advantages and disadvantages of this gun to Jin Changxi and five engineers.

After the engineer and Jin Changxi made preliminary proofreading of the basic data of the gun, they began to discuss with Dragon Boat Festival the issue of the frequent jams of Sden's submachine guns.

There are three main aspects of the trap of the Sden submachine gun. The first aspect is that the Sden submachine gun has a simple structure and is prone to sand entering the gun body during combat, causing the trap.

This point cannot be solved at all after studying Dragon Boat Festival and several engineers. Because it is related to the overall structure of the Sden submachine gun.

If this cannot be solved, it will not be solved. Otherwise, if you spend a lot of effort to solve the problem of sand entering, I am afraid that even in half a year, this submachine gun will not be mass-produced.

Moreover, the problem of getting into the sand can be avoided as long as the soldiers pay attention to it.

The second aspect is that the spring has insufficient elasticity in the last few bullets, resulting in a stuck shell due to the load of 32 rounds.

An engineer suggested that the spring elasticity could be strengthened. However, this was rejected by Dragon Boat Festival. It was because of the structure of the Sden submachine gun itself, and the spring elasticity might be stuck in the barrel of the first bullet.

So the solution is to install two fake bullets in the magazine, and reduce the bullet capacity from 32 rounds to 30 rounds.

The last aspect is that when a soldier shoots, his hands will habitually grab the magazine as a grip.

But this will greatly reduce the stability of the gun body.

Because the structure of the Sden submachine gun is too simple, the stability of the gun body itself is not strong. If you hold the magazine and shoot, your bullet will be 100% stuck as the recoil shakes.

Therefore, Dragon Boat Festival recommends adding a grip on the front end of the gun body, so that soldiers can hold this grip when shooting, which can greatly reduce the risk of getting stuck.

In addition, the Sden submachine gun has a fatal flaw, which is that its insurance is useless and is very easy to get out of fire. During World War II, many soldiers who used this submachine gun sneered at it, and even threw it away without using it.

This chapter is not over, please click on the next page to continue reading! For example, in September 1943, a special forces composed of 28 soldiers landed in Cherbourg area in northern France, preparing to perform infiltration missions while the night was shining. As a result, something unexpected happened. Perhaps because the gun was hit, a soldier's Sten submachine gun suddenly fired during the march, and the bullet without eyes directly knocked down three teammates.

Being knocked over by his own bullets is a very embarrassing thing.

When a group of people were busy bandaging the injured soldiers, their actions were exposed by the gunfire just now. The German troops patrolling nearby surrounded them at the sound of gunfire. After a brief exchange of fire between the two sides, the British soldiers who knew they were outnumbered had to choose to surrender.

Later, when the Germans interrogated these "unfortunate" British soldiers, they learned about this hilarious surprise.

Therefore, the matter that the Sden submachine gun is prone to fire must be solved. The Dragon Boat Festival does not want the battle to start, and some soldiers died under their own guns.

But at this time, several engineers thought about it for a long time but had no countermeasures.

Because the time is too short, in theory, the design of a submachine gun, even if there are already drawings, can't even think about it in a few months if you want to completely improve it.

But it is almost impossible for Dragon Boat Festival to complete it overnight.

However, after a little rest, Dragon Boat Festival had an idea. Without changing the main structure of the Sden submachine gun, Dragon Boat Festival asked the engineer to install a twisting puller handle on the Sden submachine gun to completely solve the problem of fire.

Of course, Dragon Boat Festival is just a suggestion, because if any mature gun is upgraded again, it will require a lot of experimental data.

Therefore, what the Dragon Boat Festival has set is just a prototype, and what is given is only a suggestion to assist the engineers of the arsenal to complete this Chinese submachine gun.

In other words, making firearms is not professional. He can only tell these engineers what he knows, and they still need to figure out what these engineers want to do.

However, even so, this was a significant impact on China's military industry at that time. Because at that time, weapons manufacturing technology was blocked against China. Therefore, there was a reason why China's military manufacturing industry was so backward.
Chapter completed!