As the saying goes, "The Tao is as high as the devil."
The two opposing armies, out of concern for their own lives and safety, often deliberately consider how to defend themselves against each other.
The Eighth Route Army used rocket launchers to deal with the Japanese artillery towers. Of course, the Japanese would not sit still and wait for death, but would try their best to find ways to deal with the rocket launchers.
Now they have found it, they just added a bunker in front of the gun tower.
This is indeed a good method.
The reason is that bunkers are different from gun towers.
The turret needs a certain height so that searchlights and rifles can be used to control the distance from a high place.
The disadvantage is that it is impossible to make the wall thick, otherwise the cost will be too high.
At the same time, this kind of turret with a considerable height has a large surface area and can easily become the target of ghost cannons and rocket launchers.
Bunkers are just the opposite.
It does not require height, which reduces the area to be bombed, and because it is low and requires less work, the walls can be made very thick. Some strong bunkers are even several meters thick, to the point where they can withstand aerial bombs.
The Japanese's bunkers did not reach this level. They only built a bunker with a wall of about 50 centimeters using stones and cement.
But this bunker is enough to protect against rocket launchers... The rocket launchers are filled with black powder, which can be used against the brick and earth walls of the gun towers, but is powerless against the bunkers made of stone and cement.
Wu Jin continued: "The Japanese also used the turrets to coordinate with the bunkers. The turrets were responsible for observation, that is, the roofs were illuminated with searchlights, and the... snipers were used above. In addition, they also connected telephone lines to the bunkers to tell them what was going on.
!”
Listening to Wang Xuexin, he understood that this was a combination of height, shortness, and distance. Of course, it would be difficult for the Eighth Route Army rocket launcher to break through this line of defense.
The issue of this blockade is no small matter.
The Eighth Route Army has always penetrated enemy-occupied areas by attacking the enemy on the blockade... Today, one blockhouse will be destroyed here, and tomorrow there will be two blockhouses, and then the guerrillas and intelligence personnel can enter and exit normally.
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The "Central Reserve Coupons" printed by the Eighth Route Army were transported to enemy-occupied areas by truckloads, and then truckloads of grain and strategic materials were transported back or directly distributed to guerrillas in enemy-occupied areas.
Because of this, the strength of the guerrillas in enemy-occupied areas has increased a lot.
The reason is very simple, you have money!
What can’t you buy if you have money?
Even arms are trivial... You may not be able to buy arms from the Japanese, so buying them from the puppet army is a matter of price.
If 10,000 doesn't work, then 20,000, if 20,000 doesn't work, then 100,000. There is always a price that will tempt the puppet army.
As far as the Eighth Route Army is concerned, this money is just printed paper. Using it to exchange for food and equipment is a real gain.
But now, as soon as the bunker is placed in front of the gun tower, the gap in the blockade is closed again. No matter how many "China Reserve Coupons" are printed, it will be a piece of waste paper if it cannot be transported.
Wang Xuexin was silent for a while and then said: "In this case, we should use incendiary bombs!"
"Incendiary bombs?" Wu Jin looked at Wang Xuexin doubtfully: "But the Japanese bunkers are made of stone and cement, can incendiary bombs be useful?"
Zhang Wanhe understood after listening, and said: "It's not that the incendiary bomb can burn through the bunker, but that the fire of the incendiary bomb will extend!"
Zhang Wanhe is a veteran military engineer. He has seen the power of Japanese incendiary bombs, so he knows what is going on.
"That's right!" Su Xin nodded: "The Japanese used incendiary bombs in Chongqing. Even if the incendiary bomb exploded outside the air-raid shelter, the fire would splash dozens of meters into the cave and even ignite many combustible materials.
The serious problem is that it will cause a lack of oxygen in the cave. If it is used for a bunker..."
After a pause, Su Xin continued: "In order to increase the shooting surface, most of the perforations in the Japanese bunkers are small on the inside and large on the outside. With such perforations, it is indeed difficult for rockets to penetrate the bunker, but if it is liquid
Gasoline can easily be sprayed into the bunker and burned inside!"
The Japanese usually use incendiary bombs in Chongqing because there are a large number of houses with wooden structures in Chongqing. Incendiary bombings will cause fires and cause as much damage as possible.
Su Xin's eyes still flashed with fear when she talked about this, as if she had experienced it herself.
Wang Xuexin nodded, these are exactly what he wanted to say.
Not to mention anything else, even if the gasoline does not splash into the bunker and cause a fire, this thing will continue to burn in the perforation until it burns out.
When the flames are burning, it is difficult for enemy shooters to observe targets outside the perforations, and the Eighth Route Army can take advantage of this moment to approach the bunker and throw grenades.
But what Wang Xuexin had in mind was not just a simple petrol bomb.
Petrol bombs might work, the devils were using simple petrol bombs at this time.
But Wang Xuexin feels that it is not cruel enough... Ordinary gasoline is in liquid form, and the spray stroke is too short and it is difficult to stick to the target and burn. Moreover, the burning time is short, the temperature is low, and the lethality is insufficient.
We are modern people, why not change it to sticky napalm?
Although this thing is banned in modern times, it was not banned in this period!
Be as cruel as you want to the devils!
Producing napalm is actually not difficult.
When the Americans first invented it, they added natural rubber, the so-called "viscosity agent" to gasoline.
But rubber is an important strategic material and very expensive during wartime.
Rubber is needed to manufacture aircraft, warships, tanks, cars, etc... A tank requires about half a ton of rubber, a heavy bomber requires one ton, and each warship requires more than 20,000 rubber parts, as well as tires.
Wires, etc.
The Eighth Route Army was short of rubber, so it was certainly impossible to use natural rubber to produce napalm bombs.
As for the replacement...
Wang Xuexin was worried at this time. Damn it, he didn’t know what the substitute was or how to deal with it!
At this time, the system jumped out, and it made a "ding" sound: "It has been detected that the host needs napalm formula. Do you want to purchase it?"
When I looked at the price tag, it was two million.
During this period of time, Wang Xuexin was inventing things and bombing airplanes. This is more than 20 million. What does 2 million mean?
So I bought it without even frowning.
Then the recipe came to mind, which was a naphthenic hydrocarbon and palmitic acid.
Then there are detailed instructions:
Naphthenes exist in high-boiling petroleum fractions, which can be produced from petroleum... The Eighth Route Army has petroleum and has no place to use it, so of course it is not a problem.
This thing is mainly used to increase the temperature of fuel. It contains very high heat and will release a lot of heat when burned. It is no wonder that napalm can burn through a person as long as it splashes on it.
The real viscosity agent is palmitic acid, its other name is "palmitic acid", which can be hydrolyzed and separated from beef and mutton fat, lard, etc., and can also be generated by oxidative decomposition of sugar.
Damn, this is a bit troublesome.
Although animal fat is available, where can we find so many cows, sheep and pigs in these difficult times? Sugar is easier.