Zhang Yao understands that time is the most precious, and a minute can be delayed! As long as you hold on for fifteen hours, as soon as the fleet arrives, you will be able to form an encirclement of the **, and then you will be able to turn defeat into victory!

So Zhang Yao gave the order to blow up the bridge, and the demolition platoon had already been prepared by the bridge, according to the plan, as soon as the bridgehead position started, they would lay explosives on the bridge and be ready to blow up the bridge at any time.

Machine guns rang out on the north bank of the river, which was to cover Zhang Yao and their crossing of the bridge, and they threw off the four grenades they were carrying in one go, turned around and ran to the north bank.

The smoke obscured the sight of the Russian troops, and the shrenchnel knocked out dozens of people in the forward troops, and the surprised Russian troops did not realize until Zhang Yao returned to the north bank, and they rushed through the bridgehead position and rushed towards the bridge.

The demolition platoon was waiting for the Russian army, and as soon as the Russian army rushed halfway, a violent explosion sounded under his feet! The huge gas rang exploded the bridge, and the Russian soldiers were thrown into the air like pieces of paper.

As soon as the bridge was broken, the impact momentum of the Russian army was suddenly beaten down, and they retreated to the south bank helplessly! Zhang Yao thought to himself: "You can't live now!" When our fleet arrives, you will wait until all of them are destroyed! ”

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!" ”

When Lin Yuan heard Zhang Yao's report, he thought: "Great, if the Russian army is blocked for one more minute, the fleet will be less dangerous!" He then said, "Great, the fleet has departed, and it will be there for you in twelve hours!" ”

Zhang Yao's voice changed in the communicator and said: "It's not good, the Russian army has boats, and they have started to cross the river!" ”

Lin Yuan hurriedly asked, "How much time can they cross the river?" ”

Zhang Yao said: "The upstream river overflows, so the current here is not very fast, fortunately, the Russian boats are all sampans, and they can only rely on oars to cross the river, which will definitely take more than two hours!" After Zhang Yao finished speaking, he turned off the communicator.

Lin Yuan knew that Zhang Yao must have gone to command the battle, Lin Yuan contacted Yu Ming of the fleet, and Yu Ming reported: "Lang on the river is very urgent now, but we can overcome it, there is still an hour away, and we are about to enter the flood area." ”

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

Under the command of Yu Ming, sixteen gunboats lined up in two columns and marched towards the flood area, due to the increase in the flow of the river, so the wave Lang also became turbulent, the river channel before the flood area was very narrow, so the wave Lang was even bigger, and the inclination angle caused by the wave Lang on the hull of the ship instantly increased to ten degrees! Ten degrees doesn't sound like much, but the hull of the ship is swaying from side to side at this angle, and if a sudden rush hits at this time, the ship is likely to capsize!

More dangerous things are still to come, if the Songhua River at this time is cut, a person standing on the side to observe the wave Lang, he will find that the wave Lang is like a sinusoidal curve, the boat will follow this curve, from the crest of the wave to the trough, and then to the crest, if the energy of the wave Lang is very strong, the boat will be thrown into the sky at the crest of the wave, and then fall back to the water, this distance will not be very large, and it does not need to be very large, when the hull leaves the water surface dozens of centimeters, the impact force falling on the water surface is enough to break the keel!

These gunboats are propelled by steam engine propellers, the propellers are to push the water, the driving torque transmitted to it by the engine is equal to the resistance torque of the water to it, when the hull leaves the water, the propeller will be in a state of nothing pushing, so there is nothing to provide it with resistance torque, at this time the propeller will rotate rapidly under the huge driving torque. This state is called "flying car", which is very dangerous, because the speed is fast, the first thing is the bearing, the bearing is designed according to the rated working condition, and can only withstand the friction of a certain speed, when the speed is accelerated, the huge heat generated will burn out the bearing.

Next, the drive shaft suffers, after the shaft is manufactured and installed, the center of mass is absolutely impossible to be on the geometric center, so that there is an extra eccentric moment when rotating, so that the shaft rotates around the center of the bearing, and from the outside it seems that the shaft is constantly vibrating, when the speed is very high, the vibration of the shaft will also increase, and the shaft will hit the parts connected to it, thus causing great damage. When sailing in the waves, it is necessary to add ballast, so that it is not easy for the waves to push the hull, but the fleet does not have time to load ballast! The only magic weapon for the soldiers to fight against Bo Lang is superb skill and firm will!

When the boat is pushed up by Bo Lang, if you can press down the bow of the boat and let the bow and Bo Lang at a certain angle, you can effectively reduce the harm, but this timing and angle is not something that ordinary people can grasp, so the people at the helm are the most experienced masters, they are all newly recruited by Lin Yuanxin, and the boat has been running on the river for decades.

The masters were engrossed in steering the ship, not letting the ship go wrong, and the big Lang hit the bow of the ship, splashing a crystal splash, and the hull shook violently, and the gunners in the cabin stared at the shell racks for fear that the shells would fall from above, and the soldiers grabbed the handles in the cabins......

Suddenly, the shaking of the hull of the boat has been reduced a lot, Yu Mingzhi has entered the flood area, because the river overflows out of the river, it is equivalent to the area of the water flow has increased, and the flow of the upper stream is unchanged, so the speed of the water flow has become smaller, and the Lang Tao on the river has become much more stable, but Yu Ming's hanging heart does not dare to relax in the slightest!

The banks became an ocean, and there was no reference to determine where the river was, but once the gunboats were on land, the water was relatively shallow and there was a good chance of running aground!

We can only rely on the experience of the masters, and 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 not a good point, just as the fleet was preoccupied with sailing through the flood zone, the sky began to rain heavily, and the raindrops hit the river, splashing misty water, and shrouded the sky and the earth in a miserable white!

Modern ships use special rubber as sealing materials, no matter how big the rain is the cabin will not leak, the sealing of the cabin in this era is mixed with tung oil and firewood ash, the effect is very different, under the heavy rain, the cabin will soon enter the water, 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 in this era!

Yu Ming had to order the soldiers to pick up pots and pots, everything that could hold water, and drain the water out of the hull, suddenly, Yu Ming felt a shock to the hull, as if he had hit something, and he involuntarily fell forward......

Just as 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 blocking the Russians from crossing the river, and now the whole city has been mobilized, there are too many Russians, we are ready to abandon the riverbank position, retreat back, and stick to the city defense!" ”

Lin Yuan said: "If you hold on for another ten hours, our fleet will be able to arrive!" ”

Lin Yuan turned off the communicator and contacted Yu Ming of the fleet, and to his surprise: he couldn't contact Yu Ming, and the fleet was missing!