After Cao Qing left, there was the sound of a neck bell, and it was the donkey Xiaobao who came.

"Whew!"

Everything it says is these two notes, it is to report on the work of secret agents, and after each report, it can be exchanged for a glass of wine, which is a real luxury in Funing County.

Khan, if only Anton had spoken with its simplicity. What the donkey says is two words, and what Anton says is a tirade.

After listening to Xiaobao's report and finding that Cao Qing's actions in the machinery factory were logical, Da Yan was even more relieved, and was sure that Cao Qing was a good MM, and it would be good if he could turn this aunt into the demon gate.

Then, he also confirmed from Xiaobao's mouth that no one in the machinery factory was lazy.

"Woo woo!"

Donkey Xiaobao didn't see the wine brushed out, so this time it means "wine, wine, wine".

Wang Yan came out of the bunker at this time, and the wine was hidden under the bed, so he poured a glass for it, and scratched the donkey's head after feeding it to drink: "Come on, I'm optimistic about you." ”

"Whew." Donkey Xiaobao said that he wanted to drink another glass.

As a result, he was slapped on the brain, and Wang Yan said: "Get out, I still want 5,000 strategic bombers, I can have it if I want." ”

The donkey Xiaobao left. The biggest advantage of this donkey is that it is very docile and easy-going, and when Erya spit out what it ate, it didn't get angry......

Indeed, as Cao Qing said, under the leadership of Stalin and Hitler, the progress of the steam engine was gratifying, and the entire technical team was like a chicken blood, working around the clock in public relations, and now many core components have been manufactured.

However, it was still not combined for test run according to Wang Yan's requirements, and the bottleneck was in the welding process.

In the relatively high-precision unit, it is impossible to connect by riveting, but Lao Luo Dad uses molten iron powder to connect. But the effect is not good, there is no need to install ignition, just ordinary tensile strength and other aspects of the test, it can be disjointed. Therefore, this is still an immature way to test the run, otherwise it will definitely destroy other core components that are not suitable for use.

For example, the cylinder is made of sand, poured and molded, polished, and finally Lao Luo Dad took the three most skilled technicians to correct it with a knife, this project is very huge, if the unit is disjointed and scattered after the operation, those iron slag fragments can easily damage this hard-won cylinder.

These are all difficulties, which require the relevant teams to keep their brains open their minds and make mistakes, and finally solve them. These Wang Yan knew that they couldn't hurry, so they didn't urge.

What makes Da Yan happy this time is that Song Gang No. 4 has matured.

This makes it possible to machine the barrel.

It is not that Song Gang No. 4 is used for the barrel material, in fact, the material to ensure that it will not explode is already available, but it is the earlier Song Gang No. 2.

Song Gang No. 4 is a high-quality product, but it is only produced in small batches with high difficulty, and its biggest advantage is that it solves the tools needed to manufacture the barrel - a high-hardness drill bit.

It is still too far from the quality of the heavenly knife-level materials forged by Lao Luo Dad, but it just so happens that after testing according to Wang Yan's requirements, the drill bit made by Song Iron and Steel No. 4 with abrasives can basically achieve the lower limit of geometric accuracy requirements, and it happens to gnaw the standard iron rod cast by Song Iron and Steel No. 2, and the wear is within the acceptable range.

As long as it can be used, drill bits that cannot be forged by hand can now be put into trial production. This is because the drill bit for making the barrel has too high requirements for the completeness of the geometry, and manual forging can solve the accuracy but cannot ensure the integrity of the geometry, so this thing can only be cast with abrasives when there is no related machine tool. After molding, I polish it and make a slight correction by hand.

This is a milestone.

Song Gang No. 4 can make a crappy drill bit, which means that if you make adjustments in the next step, there will be many derivatives, including gears, bearings and other things that cannot be forged.

Of course, there are problems, and the life span will not be long for the time being. But as long as it can be used, solve the problem of whether there is or not first, and slowly make trial and error, as long as there is money to burn, it will definitely get better and better.

In the past, the barrel was not impossible to build, but it could only be a real top mechanic, repeatedly beating, correcting, and finally gluing with a lame "welding" method like a paper cigarette, so although it was a high-quality forging, the welding ministry was a short board, and there was a risk of exploding.

The accuracy is not high, on the contrary, it is not a disadvantage. Anyway, it is the firearms of the US imperialists in later generations, and Afghanistan and Iraq are calculated to be thousands of rounds of ammunition to eliminate an opponent, and the accuracy in this data is a hooligan. No matter how bad the accuracy is, it can't run away from those that should hit, for example, it can hit at a distance of three or five meters.

From this concept, the gun is just a meaning, a symbol. At the same time, it is also a part of industrial accumulation, through which many meaningful things can be derived. It's not like making a flintlock pistol is an artifact.

If you want to talk about power, the flintlock pistol is really a grade worse than the current Song Dynasty version of the Divine Arm Crossbow, talking about the rate of fire, it is indeed difficult for the Divine Arm Crossbow to get on the arrow, but it will not be slower than the guns that can be made now.

Unless it is a street fight and sniper warfare, the role of long-range weapons must be measured, that is, cluster coverage, then it is not about accuracy, but it is important to emphasize well-trained crossbow troops and centralized coverage of a certain area at a unified pace.

In these senses, in addition to being much more powerful than the Fusiliers, the arrows have properties that allow them to perform farther parabolic attacks, but the Fusiliers cannot.

But the gun has one characteristic: it is cheap.

The thing under the sun is that you can't get around the problem of money. The cost of a shot of lead bullet will only be one percent of a qualified arrow, and then according to the process of the Great Song Dynasty, the divine arm crossbow cannot be mass-produced, only the top master of the Lu class can make it, and it will take two years to complete the process at the earliest.

The Great Song Dynasty has a million forbidden troops, but there are less than 10,000 crossbows, and this data is the stock of equipment accumulated over the years.

Speaking again.

Before Song Gang's No. 4 breakthrough, even if there was a brain hole, the manufacture of qualified barrels required technician-level people to slowly tinker with it in three months. But now, according to Wang Yan's plan, the apprentices who have been trained simply can use the two fixed vices on the workbench to fix the iron rod, and then follow the fixed track, swing the connecting rod with their arms, and slowly gnaw the drill bit made of Song Gang No. 4 into it like a screw gnawing wood.

This is a miraculous process, and Wang Yan's brain hole has once again been made a miracle by everyone.

For the time being, no one knows that these processes are used to make flintlock barrels, but there are so many fields where this technology can be used and so many things that can be derived.

Seeing that it used to take several months to build such a tube with the help of master-level people, now a random apprentice with preliminary training can make three tubes in one day with the data from trial production, which is amazing.

At Wang Yan's level, this will be a revolution in armaments in the future. There will still be the Divine Arm Crossbow, but it will be high-end armament, exclusive to special tactical forces. However, the basic combat structure of the ordinary big soldier will be subversively changed, and it will be very cheap.

Of course, as an obscene arms dealer, there is still a long way to go in the end how to publicize the bureaucrats in Bianjing, including Daddy, and how to promote this change. These are the interactions between politics, law change, and capital, and it is not a simple confrontation between two armies, which will seem very complicated.

The concept in the law is also simple, Wang Yan cannot build armaments, because he does not have this license qualification. Especially in terms of the Divine Arm Crossbow, in fact, after Lao Luo Dad joined, coupled with the cooperation of a strong team, Wang Yan can really make the Divine Arm Crossbow, the quality may not be as good as the military superintendent, but it will definitely be able to be used, and it will be cheaper.

It's a pity that the Great Song Dynasty's control of crossbow arrows and armor was more stringent than the attitude of the Turkish Communist Party towards firearms control in later generations, especially the divine arm crossbow, which could only be manufactured by the military and was a strategic-level control measure.

However, guns are not considered weapons in the Great Song Dynasty for the time being. So let's not talk about the plan to sell guns to the Privy Council, even as a technical verification and accumulation, Dayan also plans to create a batch of reserves in the hands of the reserve militia when the finances are more relaxed, and even the whole people are soldiers. This is the war potential reserve of Funing County.

After the first batch of earthen guns were built, it was completely certain that they were not as powerful as the Divine Arm Crossbow. Even ordinary archers who have not been trained are powerful, but the biggest advantage is that they are simple to manufacture, low cost, and relatively simple training, and the threshold for entry is very low.

Generally, people over the age of 12 who have no disabilities and no IQ defects can become a usable musketeer in just a week. There is no need to talk about accuracy and accuracy, that is a hooligan, in short, unless it is a professional sniper to play special tactics, even if it is a US military that does not lack bullets to practice, it is like that, if you swing three or four meters in front of him, you will be destroyed by a shot, this record is actually a woman in Funing County can also do it with a flintlock pistol.

As for farther places, or large-scale positional warfare, it is necessary to rely on continuous firepower clusters for big data coverage, which is commonly known as "relying on Mongolia".

The foreseeable potential for building guns can already be very obscene, and in the future when real mechanical power is put into use, it will be even more obscene......