Chapter 404: A Thousand Miles to Rescue
"Report!"
"Read!"
"The maritime department urgently notified that there is a fishing boat in distress in the southeast sea and requests rescue. Order your ministry to go to the rescue as appropriate. Be aware of the weather changes ......"
"Directions. ”
"Southeast, 370 nautical miles in a straight line. ”
"Meteorology. ”
"The wave is four meters high. Gust of eight. ”
The command is very simple. It's to save people. Get as many people back as you can before a tropical cyclone rages.
370 nautical miles to the southeast, which is still relatively far away. It belongs to the Philippine Sea.
Note that it's just called the Philippine Sea. It is not the exclusive sea area of the Philippines. It is the high seas.
Chinese fishing boats often come to this place to fish. From time to time, there will be some disputes with Philippine fishing boats. This time too.
According to subsequent reports, it is clear that a dispute of interest arose between the fishing vessels of the two sides on the high seas, and a subsequent collision occurred.
The fishing boats of the Philippines relied on their large tonnage and horsepower, so they were the first to act.
The fishing boats in China are not vegetarian either. Fight back decisively.
The result is a lose-lose situation.
Now both fishing boats have lost power. You can only wait where you are.
Judging from the satellite surveillance, the Philippine warships also rushed to the sea area where the accident occurred. The straight-line distance is about 250 nautical miles.
The Jianzhou ship is 370 nautical miles away from the sea area where the accident occurred. The difference between the two is about 120 nautical miles.
It is necessary to arrive at the scene before the other party.
This kind of thing has always been beneficial to whoever moves quickly.
If it was taken away by a Philippine warship. After that, it will take a lot of effort to bring my own people back.
If Huaxia arrives first and takes away the fishermen from the Philippines, the initiative in the future will be in our hands.
At a distance of 370 nautical miles, at a speed of 50 knots, it can be reached in 8 hours.
The opposing warship arrived at a distance of 250 nautical miles, at a speed of 30 knots per hour, in about 8 hours.
Every second counts.
Every second counts.
Even if you arrive at the scene a minute early, you can grab a good position.
All the staff officers were woken up and immediately went to nautical chart operations and planned the shortest route. Be sure to rush to the area of the accident in the shortest possible time.
The route of a warship on the sea, many times, is not in a straight line. A lot of times it will be specifically around the bend.
Why? Mainly due to the current state of the sea.
For example, ocean currents, trade winds, reefs, etc.
Reefs and the like, probably everyone understands it well. What the hell is Ocean Current?
In fact, the impact of ocean currents is still very large.
The sea also flows. This is the ocean current.
Ocean currents have a direction. Drive downstream, fast and fuel saving. Driving against the current, the speed is slow and the consumption is increased.
And the trade winds.
Above the sea, there is a constant flow of air.
When the air flow is strong enough to a certain extent, wind is formed.
The wind above the sea has a certain pattern. At different times, there are different directions. This is the trade wind.
If you drive downwind, you can undoubtedly speed up and save fuel.
If you drive against the wind, the result will naturally be slow and wasted fuel.
Combining various conditions such as ocean currents and trade winds, the most economical route can be depicted. At the same time, it is also necessary to avoid dangerous sea areas. Avoid reefs or something.
The area near the target sea area is all deep sea. There are no reefs or anything like that. Mainly the trade winds and ocean currents are affected.
If you drive in a straight line, you will be most negatively affected, but the distance will be the shortest.
If you are traveling a long distance, fuel is the most economical.
"How far is the economic route?"
"450 nautical miles. ”
"That's just a straight line. ”
"What about Philippine warships?"
"The economic route is estimated at 380 nautical miles. ”
"Good. ”
Obviously, taking the economic route is too far and takes too long.
The Jianzhou ship is equipped with a Panshi 600 engine, which does not need to consider fuel economy.
After a short discussion, Gan Haoyan decided:
Headwind.
Driving against the current.
Wang Bu watched quietly.
In other words, the Chinese soldiers have really a lot of tasks.
Defending the homeland and defending the country, emergency rescue and disaster relief, all of them are theirs.
No, the weather is so bad now, and when an order is given, you have to immediately rush hundreds of nautical miles away to bring people back.
The order says discretion. In fact, where is it possible to be discretionary? completely ignored.
Even Wang Buan felt that these two words were redundant.
It's not a lofty ideological character.
The main thing is to see that his own people are in danger and do not save him when he sees death, which is definitely not the act of a gentleman.
Even he has such an awareness, needless to say that the people's soldiers are soldiers.
They simply don't have anything to think about.
Save.
Save people as quickly as possible.
It's that simple. It's that straightforward. There is no need to think about it at all.
A few minutes later, a second command followed.
However, the superior reminded the Jianzhou ship formation to pay attention to the fact that after arriving at the sea area where the accident occurred, it might cause a certain diplomatic dispute, so please pay attention to the handling procedures.
The basic principle is to be reasonable, beneficial, and responsible. Neither humble nor arrogant.
Guan Hongru then arrived.
He wanted to discuss it with Gan Haoyan.
The climatic conditions are really bad. The gust of wind is eight and the wave is four meters high, which is in the danger range.
Not very fatal danger, of course.
If a frigate can't withstand even eighth-level winds, it's a weak chicken.
The problem now is that tropical cyclones are intensifying and have a tendency to turn into tropical storms. If it continues to intensify, it will be a typhoon. The Jianzhou frigate is no match for the Typhoon.
The straight-line distance is 370 nautical miles. At a high speed of 50 knots per hour, it would take eight hours to arrive.
For eight hours, the most feared thing is the formation of a typhoon.
With the continuous strengthening of the gusts, the current state of the frigate is not very good.
After all, it's a corvette with a displacement of only 2,100 tons. It would be nice if there were more than 3,000 tons. You don't need to think about it at all, just gallop over.
"Chief Engineer Wang, what do you suggest?" Guan Hongru asked cautiously.
"I recommend filling all eight pressurized water tanks to increase their own weight. Wang Buan was blunt.
Guan Hongru asked with an impassive expression, "Reason?"
Wang Buan replied calmly: "If all the eight pressurized water tanks are filled, it can increase the dead weight by about 1,100 tons. The deck level will be lowered by about 0.6 meters. It is in the effective range of fighting wind and waves. ”
Guan Hongru turned his head to look at Gan Haoyan, "What do you think?"
Gan Haoyan nodded, "You can consider it." ”
There were no objections.
Actually, when they opened the water ballast chamber, they also thought of it.
Of course, there are benefits. That is to increase the weight of oneself. Increased stability. It can effectively fight gusts of wind and high waves.
However, there are pros and cons. It is also a riskier practice.
After all, the weight of the corvette itself has increased, the side of the ship has also been lowered, and the waterline has been lowered.
In the event of a monstrous wave, the entire battleship may be pounced.
They had considered filling the four pressurized water tanks and adding about 550 tons of dead weight.
However, Wang Buan's suggestion is to directly increase the dead weight by 1,100 tons in one step.
There is no doubt that Wang Buan's suggestion is more risky.
However, from a driving point of view, it must be.
Otherwise, relying solely on the dead weight of 2100 tons, it will not be able to fight the increasingly strong Rafale.
If you just increase the dead weight by 550 tons, the effect will not be too obvious.
Fueling tactics is a taboo for soldiers, and it is better to do it in one step.
The key is that after increasing the dead weight of 1100 tons, the test of the power system will be more severe.
Wang Buan, as the second responsible person, must be responsible for the power system.
This long-distance sea trial, the key test, that is, the rock 600 power system!
"What's the situation with the power system?" asked Guan Hongru.
"It can meet the needs. I'm responsible. Wang Buan replied affirmatively.
"Execution. Gan Hongru finally decided.
"Understood. Gan Haoyan immediately ordered.
Eight pressurized water tanks were slowly opened, and the surging sea water poured in frantically.
The waterline of the battleship gradually decreased. The deck is getting closer and closer to the sea. More and more waves crashed onto the top of the deck, washing the deck repeatedly.
The 100-mm guns on the foredeck of the frigate were already wrapped in rainproof cloths.
Even so, the waves kept pouring down on it.
After a few minutes, the valve closes.
The eight pressurized water tanks have all been filled with seawater.
Now, the weight of the Jianzhou ship has increased to about 3,200 tons, and the stability has increased significantly.
Its previous draft was only 3.2 meters, but now it has increased to about 3.8 meters. The deeper the draft, the better the stability of the vessel. The more you can withstand storms and waves.
For the power system, it is more than 50% more burdened. This burden has increased exponentially in a geometric progression.
Fortunately, the Panshi 600 engine has plenty of power to spare.
The Qinzhou and Weizhou ships also carried out the order and filled the pressurized water tanks.
"Let's go. ”
"Let's go. ”
The three frigates continued to march bravely.
The speed is constantly increasing.
25 knots......
30 knots......
35 knots......
40 knots......
Gan Haoyan closely monitors the changes in the weather.
As the tropical cyclone approached, the weather was getting worse and worse.
Wave heights occasionally reach five meters.
Occasionally, gusts of wind exceed force ten.
For warships, such storms and waves are acceptable.
Especially the current Jianzhou ship, with a self-weight of 3,200 tons, there is no need to be afraid of ten-level gusts.
However, for fishing boats in distress from afar, that's a big deal. Fishing boats that lose power can easily be destroyed by storms. In other words, the lives of the people on board are in danger at any time.
Every second counts!
Time is of the essence.
It is necessary to arrive at the scene of the accident in the shortest possible time.
"Chief Engineer Wang, we hope to increase the speed to 50 knots......" Gan Haoyan said expectantly, "See if it is feasible......
"No, I can't. Wang Buan shook his head categorically.
"Why?"
"Mechanical rigidity is not enough. There is a risk of rupture. The maximum is only 45 knots. ”
"Can it only be 45 knots?"
"Yes. ”
"Okay. ”
Guan Hongru and Gan Haoyan are both very regretful.
It's a shame that it can't be raised above 50 knots.
However, Wang Buan is a technical engineer, and they have to listen to the professionals.
After all, the Rock 600 powertrain is from the 220 Institute. And Wang Buan is a representative sent by the 220 Research Institute. is the second person responsible. He also has a lot of responsibility.
The powertrain is really no problem.
However, the hull is really prone to accidents.