Li Yunlong took Xiao Qiao's information, looked at it carefully, and muttered to himself: "Unit 1688 of the Northern Branch, it turned out to be this unit!" ”

The 1688 unit of the North Branch is a branch of the 731 unit, and its headquarters is located in the Kagura Department on the south side of the west gate of the Temple of Heaven Park in Beijing, where the former Central Epidemic Prevention Department is located. There are three departments: the first department is located in Peking Union Medical College, which is engaged in the research of ** (biological) warfare agents; The second section is located on the south side of the west gate of the Temple of Heaven Park, engaged in ** production; The third section is located in the Beihai Beihai Library, Xiyuan Beiping Biological Investigation Institute and Beiping Social Investigation Institute, which is the first weapons research institute.

This time, the 1688 troops of the North Branch were mobilized from Beiping, and it is estimated that they are using a weapon that is more powerful than the * air bomb.

It can be said that the threat of ** weapons is greater and stronger than * air bombs, and it is impossible to prevent them.

"It's really dehumanizing!" Li Yunlong said coldly: "It seems that it is imperative to attack the Japanese air force and enemy bases this time!" ”

According to the intelligence of the dark web, this time the 1688 unit of the North Branch used the airdrop method to spread ** bombs, so it was necessary to attack their air power, so that they had no ability to airdrop at all.

"Shangguan, you notify the Shanghai Dark Web Branch and the Nanjing Distribution, pay close attention to the dynamics of the 1688 unit of the North Branch, and collect intelligence information about them!"

"Yes, I see!" Little Joe answered and went down.

This time, he obtained information about the 1688 unit of the Northern Branch, but it made Li Yunlong's air raid this time inevitable, and there could be no mistakes.

Immediately, Li Yunlong began to go down to rest and prepare for the next air battle at 12 o'clock in the morning.

The air battles during World War II, because of the backward equipment, almost all the air battles in World War II were conducted under clear skies during the day. So whether it is a single-engine propeller fighter in the air entangled with each other in various maneuvers? Or is it a battle between a group of bombers and interceptor fighters? Either way, the background is nothing more than a clear sky or a cloudy daytime.

There is no way, because of the backward technology during World War II, you can only use your eyes to fight.

Air raids at night are very demanding for pilots, only the moon provides weak illumination in the night sky, and it is even darker on moonless nights, and you can't see your fingers. Moreover, warplanes in the night sky cannot use lights, and even have to turn off navigation lights due to mission needs. The reason is that the lights of the planes in the dark night sky will be so obvious that they can be easily detected by the searchlights on the ground, which is tantamount to saying to the enemy's anti-aircraft guns and fighters: "Fire here"

If it was in the later stage, with the advent of radar, it would have been a great assistance for air combat, but now there is no radar, everything depends on the pilot's technology.

However, the flight time of the pilots of the Iron Brigade is very short, which is a big shortcoming compared with the experienced pilots of the Japanese army, and it cannot be made up for in a short time.

However, now Li Yunlong is leading the flying team to carry out ground bombing, not air-to-air combat, which is much less dangerous.

At 11 o'clock in the night, all the Predators involved in this operation woke up and began a series of preparations.

Because the county is mainly plains, it is not difficult to build a simple airport, and now in the defense area of the Iron Brigade, there is already a simple airport, and many simple runs have been built, which can be used for the rapid take-off and landing of Whirlwind fighters.

At half past eleven, Yu Fei and other pilots gathered at this improvised airport in full gear.

In this simple airport, ten Whirlwind fighters were parked on the airport in a row, and Li Yunlong's special plane ride Iron Blood also participated in this air raid and became the leading aircraft.

Li Yunlong came to the ** airport, saw that everyone was ready, glanced at the time in the pocket watch, and then looked at everyone and said: "This time is the first air battle of our iron-blooded brigade, and the target of the attack will be the Japanese Nanjing Airport, tank artillery positions!" ”

"According to the situation of the Japanese army, in the event of an emergency, they may immediately take to the air to fight us, and conduct an air battle in the night sky, relying on their ears!"

In the night sky, no matter how bright the moon is, because of the cover of night and the obscuration of clouds, it is definitely impossible to spot enemy planes with your eyes!

“．． In the night sky, we need to use our ears to distinguish the difference between our fighters and enemy fighters, and then use binaural positioning to determine the location of enemy planes, and then launch an attack! ”

"You should have learned these things in the military academy, right?"

"Yes!"

Yu Fei and others all responded loudly.

"Very good, get ready, take off in five minutes!" Li Yunlong said solemnly: "Although we have a small number of fighters, do we have the confidence to fight the majesty of our iron-blooded brigade?" ”

"Yes!"

The crowd responded.

23:35 minutes!

All the pilots got into their fighter jets and began to wait for liftoff.

"Buzz ......"

The first to take to the skies was Li Yunlong's Iron Blood!

After a short taxi, the propeller rotated rapidly, and the entire F35 fighter jet quickly lifted off into the air and flew into the night sky.

The whirlwind fighters of Yu Fei and other air force flying teams also began to slowly rise into the air.

"Buzz...... Whew......huhu"

The whole improvised airfield was constantly resounding with the roar of engines and the sound of propellers constantly turning.

One fighter plane after another continued to rise into the air and began to fly in the direction of Nanjing.

This was the first large-scale air battle of the Iron Brigade, and it was the most test of the hard power of the Iron Brigade.

(End of chapter)