Bright Sword Military System

Chapter 723 Preparation
Wang Xuexin understood what Major Doug said.

Perhaps it is not difficult to fly a fighter plane at low altitude, it is not difficult to fly along Luliang Mountain, and it is not difficult even to launch rockets towards Linfen Airport.

but……

It is very difficult to do this in the dark and to hit Linfen Airport, especially if it is required to fly along Luliang Mountain at low altitude. If one is not careful, the plane will crash and people will die.

And everything must be completed without test flight or test firing, that is, in one step... Major Doug is very clear that this is almost a fairy tale.

But Wang Xuexin was already prepared for this, he said: "So I lowered the difficulty!"

"What do you mean?" Major Doug asked puzzledly. It should be up to the pilots to decide whether to reduce the difficulty. What can Wang Xuexin do?
But Wang Xuexin really has a way, he replied: "At that time, you will see the fires burning on the ground, and there will be one of these fires every few miles. You just need to keep moving along the fire... that is a safe road route!"

Major Doug said "Oh" and nodded. This is indeed a solution. He almost forgot that the west of Luliang Mountain is the territory of the Eighth Route Army. The Eighth Route Army can survey a route in advance and guide it with fire.

And because these fires are on the west side of the Luliang Mountains, even if the fires are lit, they will not attract the attention of the devils on the east side of the mountains.

however……

"What about the rocket?" Major Doug said. "We don't even know how far it goes without a test fire!"

"I will solve this problem!" Wang Xuexin replied: "Although we can't test-fire on the plane, it doesn't mean we can't test-fire on the ground!"

"But this is completely different!" Major Doug looked at Wang Xuexin with incredible eyes: "The plane has altitude and speed..."

But before he finished speaking, Major Doug came to his senses: "Oh, you mean, transport the rockets to the mountain for test firing?"

"Yes!" Wang Xuexin stroked the Luliang Mountain range on the map, and said, "The highest peak of Luliang Mountain is more than 2000 meters. We can test-fire at any height within 2000 meters. This is probably not much like launching an aircraft at a high altitude. Difference?"

"Very smart idea!" Major Doug glanced at Wang Xuexin unexpectedly, and replied: "The difference is that the plane has speed, but the test firing on the mountain does not. But we can calculate the distance of this part!"

This is a simple physics problem, one is an object thrown with initial velocity, and the other is without initial velocity.

These can be calculated to a pretty definite number and do not require test firings.

What is not accurate is the thrust, wind resistance, shape influence, etc. of the rocket itself. If these are in modern times, it may be possible to use computer input data to obtain results, but at this time without computers, you can only rely on test firing to get a result. Approximate number.

Don't think this is just an approximate number. If you don't know the approximate number, you will not even know where it will fly if you fire those two hundred rockets out in a daze during the battle.

Major Doug wondered how, as an Eighth Route Army soldier, Wang Xuexin knew such physics knowledge, even if the physics knowledge was very basic.

But thinking about it, Major Doug is relieved... This is the knowledge that artillery should master, and the Eighth Route Army has artillery.

Therefore, Major Doug thinks that he still underestimates these seemingly backward Eighth Route Army.

Li Yueying asked another question: "Commander Wang, but that's not enough, is it? We also have to know the altitude difference from Linfen Airport. I mean, if we're firing rockets a few kilometers away!"

Wang Xuexin couldn't help but secretly praised, Li Yueying's mind and wisdom seemed to be higher than Major Doug's, for example, Major Doug didn't expect this.

The test firing of rockets can indeed solve the problem of rocket data, but if you are not sure about the altitude difference between the fighter plane and Linfen Airport, it is also a blind man who is blind.

But this problem is also solved.

Wang Xuexin replied: "At that time, everything will be surveyed. When you cross the Luliang Mountains, you will see a direction guided by a fire. What you have to do is to fly in the direction of the fire and keep a height of 500 meters. Just fire the rocket at the end!"

Major Doug and Li Yueying looked at each other, and they both saw shock in each other's eyes. They didn't expect that Wang Xuexin would consider the plan so carefully and had already made preparations.

Although these were Wang Xuexin's intentions, they were not done by Wang Xuexin, but the chief of staff was responsible for the arrangements.

This preparation is not difficult to say, and it is not easy to say simple.

It’s hard to say, it’s actually the set of artillery trigonometric functions, that is, the knowledge taught by Wang Xuexin to the artillery. Insert a pair of rods there, and then you can calculate the height, distance and other data.

The relative altitude with Linfen Airport is also calculated in this way.

To put it simply, it is Luliang Mountain, and the results need to be measured in a short time, and there can be no mistakes... This thing is the basis for launching rockets for fighter planes. The rocket itself has a high wind deflection rate. If the data is more A little mistake, that is, a thousand miles away, is the key to the success or failure of the entire plan.

Therefore, the chief of staff organized people to measure repeatedly over and over again overnight, and fired more than [-] rounds of rockets... The Eighth Route Army didn't have many rockets in the first place. Long thought it was worth it.

Then a set of data is obtained, how far can be hit at any height, how far can be hit with speed, and so on.

In the end, after repeated discussions between the chief of staff and the artillerymen including Laojiu, the altitude was set at 500 meters.

Lao Jiu reported to Wang Xuexin in this way: "It's too high, the offset is too big, and the result is that two hundred rounds may not hit the airport!"

Wang Xuexin knew the meaning of this. Although the airport was huge, the wind deflection rate of the rocket could be deflected by a few miles at will. In addition, it was shot from a high-speed flying plane, so no one could guarantee where it would hit. .

"It doesn't work if it's too low!" Laojiu continued, "If it's too low, the shooting range will be close. After flying and firing the rockets, it's too dangerous to break into the enemy's anti-aircraft guns before turning around!"

"500 meters is just right?" Wang Xuexin asked.

"It's about 500 meters!" Laojiu replied: "Turn around immediately after shooting. Although it is possible to enter a dangerous area, the Devil's anti-aircraft guns have no time to react! After all, we only have ten planes..."

Lao Jiu is an experienced artilleryman and has knowledge of anti-aircraft guns, so he knows that the fewer aircraft there are, the less likely it is to be hit by anti-aircraft guns.

(End of this chapter)