A one-ton bomb, falling from the sky, with tremendous speed, was incomparably sharp.

"Boom!" The bomb smashed on the roof of the building, and in an instant, the entire building trembled violently, and the force of the impact was so huge that the prefabricated concrete floor slab was directly smashed through.

Several people on the roof of the building were hit by flying concrete fragments and fell down screaming, and a soldier was hit by the fragments, took two steps back, and then stepped into the air and fell directly from the roof, screaming in mid-air.

The bomb smashed from the roof to the top floor, and continued to smash through the floor, and on the next floor, the time-delay fuse detonated.

"Boom!" The explosion was extremely loud, and there were hundreds of kilograms of high explosives in a one-ton bomb, which could blow up a giant battleship, and now, in the huge explosion, the top of this building was shattered in an instant.

Just like the explosion when a building is demolished, the upper floors collapsed in the explosion, and countless pieces were lifted into the air, and then fell, hundreds of meters away.

The German soldiers who were surrounded outside hid in armored vehicles, looking at the scene in front of them and discussing it with a sigh.

It's too powerful.

However, one was not enough for all the buildings, and just after the explosion on this side was over, the second HS129 attack aircraft entered a state of dive.

When the bomb of the third attack plane was blown up, the entire building had disappeared, and even the ground was blasted into a large crater, and fragments of concrete filled the surrounding area.

There's no living mouth in it anymore.

Those who are not killed by the bombing at the moment will be stoned to death, and those who are not stoned will also be shocked to death, and if they do not surrender to Germany, this is the end!

Without any resistance, Germany will not consume its precious soldiers here in vain, and crush them with absolute strength against stubborn guys!

Now it was just a matter of calling bombers, and it would be easier to wait until later, when other new German weapons, such as individual air incendiary bombs, were installed.

With the bombing of the Kalinin headquarters, the battle of Kalinin, even if it came to an end, the German army had knocked on the northern gate of Moscow.

"Comrade Stalin, Kalinin is lost." In the basement of the Kremlin, Stalin's face became even more gloomy as he listened to the words of his men.

Kalinin, the northern gate of Moscow, is now in the hands of the Germans, who can drive all the way to Moscow.

Come on, Moscow is waiting for the German troops, and if they dare to come, they will be met head-on!

"We have to strengthen our defense, put up a tight line in Klin, and wait for the Germans to attack." Zhukov said.

With Zhukov returning to Moscow, he continued to gain Stalin's trust, and because of the correctness of his previous foresight, Zhukov had a great say.

He was strategizing and directing the defense of Moscow.

They had no more troops, so they could only sit back and watch the loss of Kalinin, and at the same time, this was also in line with Zhukov's thinking, defending layer by layer, constantly depleting the strength of the Germans, and finally fighting a difficult offensive and defensive battle with the Germans under the city of Moscow.

They did not have a surplus army to send to Kalinin, and in their plan, all the cities on the periphery would eventually be lost, and the troops sent there would already be doomed.

"At the last moment, the Kalinin Front did not surrender either, they fought until the last moment." Stalin said: "They are all good, the commander of the Kalinin Front, Konev, the chief of staff Kurasov and others, awarded them the title of Hero of the Soviet Union." ”

In the Soviets, this was one of the most glorious titles, not even for senior commanders, but now Stalin gave them to the martyrs for their bravery and tenacity in the battle, and called on the whole army to learn from them.

"The failure of the Kalinin Military District this time, the absence of air support is a big reason." Zhukov continued: "We have been able to see that without air power, our ground forces will be very passive, and now we have to think of ways to increase our air power. ”

The situation was quite unfavorable for the Soviets, they still had enough tanks, planes, but, however, they were all short of fuel! Several actions by the Germans left the Soviets suffering from oil shortages.

Originally, it was still pinned on the United States, but the sea passage has been blocked for the time being, and Moscow has reached the most dangerous time.

"The Gromov Test Flight Institute is using alcohol instead of aviation gasoline for our fighters, and I don't know how the experiment went." Said an Air Force officer.

The Soviets will not compromise, the Soviets, they must fight, and now, since there is a shortage of fuel, it is necessary to think of other ways, for example, the use of alcohol instead of gasoline, which is an idea.

However, this thing is not easy to operate.

South of Moscow, 40 km, near the banks of the Moscow River, a small city, Stakhannovo.

The city is very young, it was founded in 1935, the name of the city was in honor of the famous miner Alexei Stakhanov, if only this is mentioned, few people know about it, and in later generations it was famous, but with a different name.

Zhukovsky, in memory of Nikolai Zhukovsky, a pioneer of Soviet aerodynamics and hydrodynamics, changed its name in 1947 and became the center of Soviet aviation.

It is home to three institutions of higher learning, the Gromov Flight Institute, the Central Research Institute of Aerohydrodynamics and the Cyprus International School of Management, which is the "city of science and technology" and the "center of the aviation industry" of the Soviet Union.

Among them, the Gromov Test Flight Academy was born on the eve of the outbreak of the Great Patriotic War. At the beginning of the year, the Academy was established by order of the Central Committee of the CPSU and the Council of People's Commissars of the USSR.

The design of the aircraft, there is already a unified process, in which flight tests are the most important, and test flights are not suitable for individual design bureaus, but preferably in a place of a unified specialty, and this is the original purpose of the test flight academy, to develop and test new aircraft for the booming Soviet aviation industry, and to train sufficient senior flight personnel.

Hero of the Soviet Union, legendary test pilot, Air Force Lieutenant General Mikhail Mikhailovich Gromov was appointed the first director of the test flight academy.

However, as soon as the academy was founded, the Soviets faced the German invasion, so almost as soon as the test flight institute was founded, most of the specialists and equipment had to be transferred to Kazan and Siberia, east of the Urals. The test flight site of the Academy became the station of the 45th long-range aviation division of the USSR.

And now, at the test flight site, the latest test flight project is still underway, replacing gasoline with alcohol.