Open an aircraft carrier to fight against Japan

Zhang Yao understands that time is the most precious thing, and one minute that can be delayed counts as one minute!As long as you stick to it for fifteen hours, once the fleet arrives, they will be able to encircle Lao Maozi, and then they will be able to turn defeat into victory!

So Zhang Yao gave the order to blow up the bridge. The blasting platoon had already prepared by the bridge. According to the plan, as soon as the bridgehead was opened, they would lay explosives on the bridge and be ready to blow it up at any time.

Machine guns rang out from the north bank of the river, covering Zhang Yao and the others from crossing the bridge. They threw off the four grenades they were carrying in one go, turned around and ran towards the north bank.

Thick smoke obscured the sight of the Russian army, and the shrapnel knocked out dozens of people in the vanguard. The surprised Russian army didn't realize until Zhang Yao and the others returned to the north bank. They rushed across the bridgehead position and rushed towards the bridge.

The blasting platoon was waiting for the Russian army. The Russian army had just rushed halfway, and the violent explosion sounded under their feet!The huge air wave broke the bridge, and the Russian soldiers were thrown into the air like pieces of paper.

As soon as the bridge was broken, the momentum of the Russian army's attack was immediately severely beaten, and they retreated back to the south bank helplessly!Zhang Yao thought to himself: "Now you can't make it through! When our fleet arrives, you can wait until the entire army is wiped out!"

At this moment, Lin Yuan's call came from Zhang Yao's communicator: "How is the battle going?"

Zhang Yao said: "Report to the captain, we blew up the bridge, and the Russian army is now blocked on the south bank!"

Hearing Zhang Yao's report, Lin Yuan thought: "Great, if the Russian army is blocked for one more minute, the fleet will be less dangerous!" Then he said: "Great, the fleet has already set off, twelve It will be at your place in an hour!"

Zhang Yao's voice changed in the communicator, and he said, "No, the Russian army has boats, and they are starting to cross the river!"

Lin Yuan quickly asked, "How long will it take them to cross the river?"

Zhang Yao said: "The upper reaches of the river overflowed the river, so the current here is not very urgent. Fortunately, the Russian army's ships are all sampans, and they can only rely on paddles to cross the river. It will definitely take more than two hours!" Zhang Yao said When finished, close the communicator.

Lin Yuan knew that Zhang Yao must go to command the battle. Lin Yuan contacted Yu Ming of the fleet, and Yu Minghui reported: "The waves on the river are very fast now, but we can overcome it. There is still an hour's journey, and we will enter Flood zone."

Lin Yuan's heart tightened, he didn't know what to say, now, he could only rely on the abilities of the soldiers, and it was a race against time!

Under the command of Yu Ming, the sixteen gunboats lined up in two columns and headed towards the flood area. Due to the increase in the flow of the river, the waves also became turbulent. The river channel before the flood area was very narrow, so the waves became even bigger. The angle of inclination caused by the waves on the hull instantly increased to ten degrees!Ten degrees doesn't sound like much, but the ship's body is shaking left and right at this angle. If there is a sudden strong wave at this time, the ship is likely to capsize!

More dangerous things are yet to come. If you cut the Songhua River at this time and observe the waves alone, you will find that the waves are like sinusoidal curves, and the boat follows this curve from the crest to the trough. , and then to the wave crest, if the energy of the wave is strong, the boat will be thrown heavily into the sky at the wave crest, and then fall back to the water surface. This distance will not be very large, and it does not need to be very large. When it is less than one centimeter, the impact force of falling on the water surface is enough to break the keel!

These gunboats are propelled by steam engine propellers. The propellers push the water. The driving torque transmitted by the engine is equal to the resistance torque of the water to it. When the hull leaves the water, the propellers will be in a state of not pushing anything. , so there is nothing to provide it with resistance torque, and the propeller will rotate under the huge driving torque at this time.This state is called "speeding", which is very dangerous, because when the speed is fast, the bearings are the first to bear the brunt. The bearings are designed according to the rated working conditions and can only withstand friction at a certain speed. When the speed increases, The enormous heat generated can burn out the bearings.

Next, the suffering drive shaft, after the shaft is manufactured and installed, it is absolutely impossible for the center of mass to be on the geometric center, so that an extra eccentric moment will be generated when the shaft rotates around the center line of the bearing, which looks like it from the outside. The shaft is constantly vibrating, and when the speed is high, the vibration of the shaft will also increase, and the shaft will hit the parts connected to it, causing a lot of damage.When sailing in waves, ballast must be installed, so that the waves will not easily push the hull, but the fleet has no time to install ballast!The only magic weapon for the soldiers to fight against the waves is their superb skills and firm will!

When the boat is pushed up by the waves, if the bow of the boat can be lowered so that the bow and the waves form a certain angle, the damage can be effectively mitigated. However, this timing and angle are not grasped by ordinary people, so those who are at the helm are the most capable. Experienced masters, they are all newly recruited by Lin Yuan, and they have been sailing on the river for decades. At the beginning, Yu Ming thought they were too old, but now he saw the benefits.

The master craftsmen concentrated their attention on steering the boat, not letting the boat make any mistakes. Big waves hit the bow of the boat, splashing a piece of crystal water, the hull shook violently, and the gunners in the cabin were staring at the shell rack. For fear that the shells would fall from above, the soldiers grabbed the handles in the cabin...

Suddenly, the degree of shaking of the ship's hull was reduced a lot. Yu Ming knew that he had entered the flood zone. Since the river overflowed the river, the area of ​​the water flow increased, and the flow of the upper stream remained the same, so the speed of the water flow changed. It's getting younger, and the waves on the river have become much calmer, but Yu Ming's hanging heart dare not relax in the slightest!

The two sides of the strait became a piece of land, lacking reference objects, and it was impossible to determine where the river course was. Once the gunboat sailed on land, the water there was relatively shallow, and it was very likely to run aground!

We can only rely on the experience of the masters, their feelings will be the magic weapon to guide the fleet out of the flood zone!

The house leak happened to rain overnight, which is quite true. Just as the fleet was concentrating on sailing through the flood area, there was a heavy rain in the sky. The raindrops hit the river surface, splashing misty water, covering the sky and the earth. It was pale!

Modern ships use special rubber as the sealing material, and the cabin will not leak no matter how heavy the rain is. In this era, the cabin is sealed with tung oil mixed with firewood ash. The effect is far different. Under heavy rain, the cabin will soon enter The water was gone, and Yu Ming hurriedly organized manual drainage. Drainage is an important part of the damage control of modern warships. There is a special drainage pump in the cabin, but there is no such thing in this era!

Yu Ming had no choice but to order the soldiers to pick up pots, pots, and everything that can hold water, and drain the water out of the hull. Suddenly, Yu Ming felt the hull shake, as if he had hit something, and he fell forward involuntarily. go……

While the fleet was struggling with the heavy rain and rapids, Lin Yuan contacted Zhang Yao and asked, "How is the situation now?"

Zhang Yao said: "We are preventing the Russians from crossing the river. Now the whole city has been mobilized. There are too many Russians. We are ready to abandon the riverside position, retreat backwards, and stick to the city defense!"

Lin Yuan said: "If you stick to it for another ten hours, our fleet will arrive!"

Lin Yuan turned off the communicator and contacted Yu Ming of the fleet. What surprised him was: he couldn't contact Yu Ming, the fleet was missing!