After all, I just returned from polar bears.

Polar bear ammunition and the like should arrive soon.

There are also volunteers to assist the China Air Force.

No matter what the deal was behind the scenes, the polar bear did give the government a hand at the most critical moment.

The original German weapons will gradually be replaced by Su weapons. They will be supported until Mustache attacks the polar bear.

The 74th Army originally had German weapons. Later it was replaced by Soviet weapons. Later it was changed to American weapons.

This period of history is full of great twists and turns.

But the historical giant disintegrated internally and was gradually forgotten.

Put down the phone.

"Someone is coming!"

"arrive!"

"After the air raid, immediately organize manpower and clear the dock."

"yes."

"Try your best to send the people in the fortress to the north bank."

"clear."

Du Songyue agreed.

If it is simply sent to the North Shore, it won't be a big problem.

Just send it across the river.

The situation was urgent and there was no time to make any more plans.

If you stay in the fortress, you may be killed. But if you cross the river and go ashore, there is still a glimmer of hope.

"That's it!"

Zhang Yong didn't say much.

Arrive at the side of Huangshan Fort.

Two Oerlikon anti-aircraft gun groups were deployed here.

Single tube.

60 round drum magazine fed.

The biggest advantage is the continuous firepower.

The Sulotong machine gun next door can only use a 15-round magazine. After two bursts, the magazine is empty.

For high-speed moving targets, it is impossible without continuous firepower.

Therefore, Sulotong was gradually eliminated. Oerlikon gradually became the protagonist.

After the outbreak of World War II, this Oerlikon 20mm cannon was widely used by the Allies and the Axis Powers.

30 kilometers…

20 kilometers…

The Japanese planes were getting closer and closer.

Zhang Yong checked the radar map and found that most of the people in the fortress were hiding.

Including those ordinary people who came in to take refuge, they were also placed in the trenches outside. The trenches were in the shape of "Feng" or "M", which can effectively defend against air attacks.

Of course, bombing and strafing by Japanese aircraft will definitely cause casualties. The question is how many.

We still need to find ways to evacuate the people as soon as possible.

Since Jinling cannot receive it, then move it to the Jiangbei area. Go to Yangzhou, Taizhou, Nantong and other places. Then move it further to the rear.

Opposite Jiangyin Fortress are Jingjiang, Taixing and other places. As long as they are sent across the river, they will be safe for the time being.

As for the future, we will talk about it later. Zhang Yong has no better way.

10 kilometers…

Japanese aircraft appeared in the telescope.

"Coming!"

"Coming!"

The observation post immediately sounded the alarm.

All the machine guns were in readiness. The team leader was very nervous.

Zhang Yong is also silently studying the empty finger map.

It is unrealistic to expect other people to achieve results by playing blindly.

Planes are not ground targets. They cannot be hit casually. Otherwise, they would have been eliminated long ago.

Even at a speed of about 300 kilometers per hour, it is actually very fast. Ground firepower cannot catch up. Unless there is system help and preparations in advance.

In short, it is waiting for you in front. Lock your route, and then attack suddenly.

There are many variables that need to be calculated here.

The speed and altitude of the aircraft...

The muzzle velocity and angle of the machine gun...

It's simply not something you can handle mentally.

Mental arithmetic is just a rough estimate, the so-called lead time.

However, there seems to be no clear guidance on how far in advance. We can only rely on experience.

Or rely on guessing and hope that the blind cat will encounter a dead mouse.

5000 meters…

The Japanese aircraft began to disperse.

The radar map indicated that there were 150 kilograms of aerial bombs hanging from the aircraft.

They are all 150 kilograms. There seems to be no other with larger tonnage. I guess the Japanese invaders thought 150 kilograms was enough.

"Boom, boom, boom..."

"Boom, boom, boom..."

A Suratung machine gun started firing.

Their purpose was not to shoot down but to disrupt the formation of Japanese aircraft.

Let the Japanese aircraft realize that the fortress itself has air defense. They cannot be so carefree. If they are not careful, they will be shot down.

"Boom, boom, boom..."

"Boom, boom, boom..."

There was another Oerlikon cannon fire.

Sure enough, affected by the anti-aircraft firepower, the Japanese aircraft hurriedly dispersed to both sides.

"Rookie..."

Two words came to Zhang Yong's mind.

It seems a bit arrogant. However, this was indeed the case at the time.

The Japanese carrier-based aircraft pilots were undoubtedly trained very hard. However, they really did not have much actual combat experience.

For most of the Japanese pilots, the Songhu battlefield was their first experience in actual combat.

It's mainly a large-area bombing. It doesn't require high accuracy. It's probably just a matter of dropping aerial bombs.

However, facing the Jiangyin Fortress, precision bombing must be carried out.

It must be blown up to the gun emplacement.

The impact point needs to be at least ten meters away.

If an aerial bomb explodes ten meters away, it may not cause fatal damage.

After all, a fortress is a fortress. It is made of reinforced concrete. Especially the gun emplacements are quite strong and will not be easily blown to pieces.

This requirement is a bit high.

To accurately bomb each gun emplacement, both skill and luck are indispensable.

You may have to pay a considerable price.

Your bombing angle and the fortress are also pre-judged.

Normally, this bombing angle would be blocked by anti-aircraft guns.
To be continued...