The long night...

Nervous...

…

high altitude.

Quiet.

Keep flying.

Getting closer and closer to Shanghai.

20 kilometers…

10 kilometers…

"Unplug the safety pin."

"good."

Tong Yanbo and McCoy operated at the same time.

Unplug all the 25kg aerial bombs in the cabin and prepare to release the bombs.

The 25 kilogram aerial bomb prepared by Zhang Yong is actually very average in power. The advantage is that it has double insurance to ensure that it will not explode in the cabin.

Its detonation method is not touch-type. It detonates with weak current.

There is a small propeller at the tail of the bomb, about the size of a palm. When the bomb falls, it will be driven by the wind to rotate at high speed, and then generate an electric current.

After some conversions in the bomb, the electric current will start the explosion process.

When the bomb hits the ground, the small propeller stops rotating. No more current is generated. The bomb will explode immediately.

Very safe.

But it requires a certain height.

It cannot be lower than 1200 meters. Otherwise, the current generated by the small propeller will be insufficient.

Keep flying.

Close to Longhua Airport.

The aerial map showed densely packed aircraft marks.

Check.

There are Japanese Army Red Deer Type 97 fighter jets.

There are also Type 96 land-based bombers of the Japanese Navy's Red Deer.

Huh?

The airport is actually shared?

I wonder if there will be a fight between the Army Red Deer and Navy Red Deer inside?

Outside Longhua Airport, other Japanese aircraft were also discovered.

It was over there at the racecourse. There was a temporary airport and Japanese aircraft were stationed there.

Adjust course.

Adjust height.

Because the bomb cannot be dropped below 1,200 meters, so keep the altitude at 1,500 meters.

The speed must be reduced to the minimum to gain more time for bombing. After all, it is a manual operation. It is very time-consuming.

The course was adjusted from west to east, running through the entire Longhua Airport, in order to increase the operating time as much as possible and drop more bombs.

"Prepare."

"good."

Tong Yanbo and McCoy are each responsible for a group of bombs.

There are six bombs in each group. They are clamped with a temporary wooden frame. The wooden frame is beveled and has a baffle in the front.

Once the baffle is removed, the six aerial bombs will roll down the wooden frame. Then they will fall from the airdrop port and fall freely.

Don’t worry about the rest of the matter. Leave it all to the bombs themselves.

This Martin 139WC bomber has two airdrop openings in the cabin. When necessary, simple airdrops can be carried out.

When initially designing, we tried to add as many functions as possible to expand sales.

In the 1930s, the economy was depressed and all aircraft manufacturing companies were having a hard time, so they came up with such a design.

After the start of the world war, this kind of airdrop port was cancelled. There is no need. They are all professional aircraft doing professional things.

There are various professional large transport aircraft.

5000 meters…

3000 meters…

Getting closer to the goal.

The radar map shows a dotted oval gradually entering the airport.

Aircraft parking on the ground is also divided into areas.

Type 96 land-based attack aircraft was selected.

2000 meters…

1500 meters…

Almost there.

"bomb!"

"yes!"

Tong Yanbo agreed loudly.

Pull off the baffle in front of the wooden frame.

Under the influence of gravity, the bombs on the wooden frame began to roll down.

"Clang..."

"Clang..."

Fall down one by one from the airdrop port.

Gululu...

Gululu...

Soon, they all rolled down.

The same was true on McCoy's side. All six bombs fell.

The two men hurriedly approached the porthole, raised their telescopes, and carefully observed the ground to determine the results of the bombing.

Zhang Yong pulled the joystick and quickly turned right and flew towards Hangzhou.

Balls of fire began to erupt from the ground.

Oh, the bomb exploded.

How many seconds does it take to free fall from an altitude of 1500 meters?

Think about it...

It seems like it takes 17 seconds?

This is what middle school physics says. The premise is that air resistance is not considered.

If air resistance is considered, it may take more than twenty seconds?

No wonder it took a while to explode.

Compared to a 225-kilogram aerial bomb, this 25-kilogram little guy doesn’t make much noise when it explodes.

At high altitude, there was no sound of the explosion at all. There was only the firelight of the explosion, which could not light up the night sky.

"It's blowing up!"

"It's blowing up!"

Tong Yanbo shouted excitedly.

When dropping bombs in Jinling, he was so nervous that he forgot to observe.

This time, he saw it very clearly.

At the moment when the fire broke out, a Japanese aircraft was destroyed. It was directly broken in the fire.

I don't know the specific model. In short, it was destroyed.
To be continued...