São Paulo, Brazil, Fangyuan Group Shipyard.

Fang Lang is leading a team to inspect his family's shipyard, because with the strong support of the United States Global Shipbuilding, this relatively young shipbuilding company has directly jumped to the largest shipyard in the whole of Brazil, and even in the whole of South America.

There are nearly 30,000 professional shipbuilders, most of whom are skilled immigrants of German and Italian origin from Europe and the United States, as well as a large number of Chinese immigrants and native Brazilians.

It mainly produces 10,000-ton container ships, and now there are as many as 10 container ships on the slipway that are under construction at the same time. Production orders have been scheduled for five years.

Because of the progress of the welding process, Fangyuan Group adopted the most common sectional shipbuilding method in later generations, so the shipbuilding speed is very fast, although it cannot be compared with the victory ship during the American war, but it only takes about two months to launch a ship.

This has reached the world's advanced level in the current era, and today Fang Lang came to visit with a group of officers and soldiers of the aircraft carrier formation, of course, not to visit these 10,000-ton container ships.

"Boss, this is the 500-ton river patrol boat we designed and built according to your requirements, with a length of 56 meters, a width of 9 meters, a draft of 1.5 meters, and an armor thickness of 35 millimeters.

It is equipped with three Mercedes-Benz diesel engines with 3,900 hp and a maximum speed of 22 knots.

The front and rear are equipped with a 105mm gun, a 40mm Bofors anti-aircraft gun, and four 12.7mm heavy machine guns."

Osman Aragon, the general manager of the shipyard, pointed to an armed river patrol boat that looked very small next to the slipway of many 10,000-ton cargo ships, and introduced it to Fang Lang.

Fang Lang seriously looked at the brand-new river patrol boat in the slipway, and asked the general manager of the shipyard with interest:

"Oh! Mercedes-Benz diesel engines? Is it produced at the Mercedes-Benz plant in Brazil?"

As the general manager of the shipyard, Osman Aragon knew very well that the Mercedes-Benz factory in Brazil was originally introduced by the boss in front of him, so of course he was clear about what the other party was concerned about, and nodded and replied:

"Yes, from the Mercedes-Benz plant in Brazil, a joint venture between our group and Mercedes-Benz, with a single engine of 1,300 hp, three engines installed, with a three-axle layout."

Hearing this, Fang Lang nodded with satisfaction, and said to the officers beside him:

"Everyone go up and have a look, and this is the first modern warship that we have built in Brazil."

Then he turned to Osman Aragon and asked:

"By the way, how far this ship can cruise! Don't be a short-legged general."

Osman Aragorn, who was on the side, smiled when he heard this:

"Rest assured, boss, this is exactly what you wanted, with a cruising range of 2,000 nautical miles, which is less than half of the entire Amazon River, but it is enough to be used as a standing patrol force."

The people who came with Fang Lang were all naval officers of the aircraft carrier fleet, and of course they were a little disdainful of this kind of small boats that could not be called warships.

But I can't stand it, this is the first armed patrol boat produced by Brazil independently! Looking at the surrounding 10,000-ton giant ships, with the experience of designing and manufacturing patrol boats, will it soon be possible to start producing and building warships of larger tonnage?

Although building a patrol boat and building a warship are two different things, it can't stop everyone's inner anticipation!

Therefore, everyone showed great enthusiasm for visiting this small patrol boat, climbing up and down, drilling in and out, pointing and pointing at whether it was lively or not.

Seeing that everyone was watching the excitement, Fang Lang also walked up and took a closer look, before he asked Osman Aragorn:

"When can I launch for sea trials?"

"Of course, it's always possible, in fact, we've already done tests, and the firing of guns and the like during the march is very stable, and it definitely meets the design requirements."

Osman Aragon replied without hesitation.

Hearing this, Fang Lang nodded and said to him:

"Then let's go into the water and try it, this afternoon the General of the Wehrmacht Logistics Department will come to our factory to visit this river patrol boat, and there will be no trouble then.

If this boat performs well, we may be able to get a formal order soon."

Osman Aragon looked at Fang Lang with a surprised expression and said:

"Boss, really? But the military didn't entrust us with the development! Can the river patrol boats we designed according to our own ideas meet the requirements of the military?"

Fang Lang smiled and patted the other party's arm and said:

"Haha...... Rest assured! It doesn't matter whether the military has a project or not, the key is that the current military urgently needs such a weapon, and we happen to have it, isn't this a hit?

I don't have to worry about whether it's suitable or not, but I was personally involved in the design and I have confidence in him."

In fact, as early as when the Eddie brothers declared a rebellion in the town of Bittencott, Fang Lang had already determined that the Brazilian military must be in urgent need of a river patrol boat that could maintain stability in the Amazon River and strike the enemy.

Otherwise, the Brazilian Navy's pre-World War I antiques on the Amazon River, which are about to rust, will not be able to meet the needs of the Brazilian army.

The next time they want to attack, the sailors responsible for the security of the Amazon River basin will rebel, because letting them fly such warships to fight the enemy will definitely cause strong resentment.

Coupled with Fang Lang's current influence in the Brazilian army and his relationship with General Laita, Fang Lang is not worried that the Brazilian military will not buy it at all.

With the assurance of his own boss, Osman Aragorn suddenly smiled, patted his chest and promised:

"Haha....... Boss, don't worry! I'll have someone go into the water right away to make sure the chain doesn't fall off."

After speaking, he commanded a staff member who followed him.

At the same time, Fang Lang said to his chief of staff, Delatore:

"How do you feel?"

De La Torre, who was looking down to study the stern engine, looked up at Fang Lang when he heard this, and said with a smile:

"Boss, I don't see anything wrong now, I still have to try it in the water, but I think this guy is good."

As he spoke, he patted the Mercedes-Benz diesel engine next to him.

Fang Lang knew that the other party was from the old navy and had his own criteria for judging the quality of the ship, but this kind of inland river patrol boat was obviously the first time that the other party had contact with it, so he could not give an accurate evaluation.

But he was very pleased with the ship's three 1,300 hp engines.

"Then you'll bring someone up and test it to see if it meets the design standards." The standard of inspection can be set a little higher, after all, this is the first warship produced in Brazil.

If this river patrol boat can meet our requirements, I am going to let them start trial production of a destroyer in the next step, after all, there is still a very large shortage of destroyers in the Brazilian Navy."

Hearing this, de la Torre nodded, stroked the cold hull of the patrol boat with his hand, and said with a serious face:

"No problem, please rest assured boss, we are professional."

Hearing this, Fang Lang nodded with a smile, and continued to ask at Osman Aragorn:

"And a small fast patrol boat?"

If you want to come and go freely in the complex Amazon jungle, it is obviously not possible to rely on this kind of patrol boat of about 500 tons, after all, many small waterways are obviously not suitable for the entry of such boats, and if you don't do it, you will run aground, or lose your maneuverability and be pressed to the ground and rubbed.

Therefore, at the beginning of the design of patrol boats, Fang Lang designed two patrol boats, one is a 500-ton inland river patrol boat, which is mainly used on the main road of the Amazon River, and can remotely attack local ships through artillery.

Or to provide fire support to the army through 105mm guns, after all, it is basically an impossible task to transport such howitzers as 105mm into the jungle.

And there are obviously no problems with providing long-range fire support on ships.

However, if the patrol boat cannot enter the jungle, it will certainly not be able to inflict effective damage on the enemy hiding in the jungle, and then this kind of 500-ton patrol boat may only be able to patrol the main river and limit the range of activities of the enemy's boats. In the end, it became a tasteless and discarded chicken rib product.

In this case, the appearance of small fast patrol boats has become an inevitable option, and if he cooperates with the 500-ton patrol boats, the enemy will have nowhere to hide.

Osman Aragon, who was excited about the opportunity to win the order of the Brazilian military, heard Fang Lang's words, a trace of embarrassment flashed on his face, and he slowly said with a little hesitation:

"Boss, this ....... We had little experience building this small speedboat, although we did build a prototype.

However, the pump-jet engine you requested could not meet your requirements for the time being, so in order to complete the prototype task within the time you required, we still used propeller technology.

Please rest assured, we are already organizing manpower to tackle the pump injection engine technology you require! It is expected to be able to produce a qualified finished product within two months."

Hearing this, Fang Lang's brows were tightly wrinkled together, whether it was in the previous life or in this life, Fang Lang had formed an indissoluble bond with the ship, so Fang Lang still had some understanding of the ship's pumping technology.

The so-called pump jet is also called water jet propulsion, which is different from the common propeller propulsion method, the thrust of water jet propulsion is obtained by the reaction force of the water jet sprayed by the propulsion pump, and the ship is controlled by manipulating the rudder and the inverted rudder equipment to distribute and change the direction of the jet.

This propulsion method is generally used in high-performance, high-speed ships, which can make the ship have excellent high-speed maneuverability, a smaller turning radius when turning, and a shallower draft.

Of course, it is not without disadvantages, for example, in waters with more aquatic weeds or debris, the import is prone to blockage and affect the speed of the ship.

As far as Fang Lang knows, this technology was invented as early as 1661, and it appeared even 19 years earlier than propeller technology.

He didn't expect that at this time, the fast patrol boat he wanted would be stuck on this technology.

Seeing the boss frowning, Osman Aragon hurriedly explained:

"Boss, I'm really sorry, please listen to me explain, although pump jet technology appeared very early, in recent decades, the superiority of propellers and the shortcomings of water jet propulsion have basically been recognized by everyone.

Most countries in the world have given up on the research of pump spraying technology, and we lack the necessary technical reserves for this technology, which is why this situation has arisen.

Please rest assured that after receiving your commission, we have hired more than 20 relevant experts from Europe and the United States to our shipyard for research.

Although we have not been able to get a pump-jet engine that meets your requirements in time, after this period of research, we have also found some technical doorways and applied for more than 20 related patents, and it is expected that his performance will meet your requirements within two months."

Fang Lang, who was still a little dissatisfied, felt a lot more comfortable when he heard that Osman Aragon had organized European and American experts to conduct research and applied for more than 20 patents.

stepped forward and patted the other party's shoulder and said:

"Oh! More than 20 patents have been researched, which is good, not bad, not waiting, not relying on it, and researching it yourself, such a spirit is commendable.

However, now our military really needs this kind of high-speed patrol boat, take us to see where the prototype boat we tried to make, if it really doesn't work, take it out and use it first, and then we will modify it after the breakthrough in pump spraying technology."

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Although it did not reach the 28 knots you required in terms of speed, it did reach 24 knots, which can be regarded as a fast patrol boat."

Hearing that the speed of using propeller propulsion could reach 23 knots, Fang Lang's calm heart relaxed a little. As he walked forward with Osman Aragorn, he asked:

"The speed of 24 knots is quite acceptable so far, which engine are you using?"

Seeing that the boss's evaluation of the speed was quite qualified, Osman Aragon breathed a long sigh of relief, and while leading the way in front, he turned back to Fang Lang who was following him:

"We use two diesel engines from Porsche cars to power the boat, with an output of 325 kilowatts, and according to our calculations, using this engine to power the waterjet propulsion will allow our high-speed patrol boat to reach speeds of 28 knots."

I didn't expect the speedboat to use Porsche's car engine technology, which made Fang Lang have to sigh, his decision is really wise, if he didn't introduce Mercedes-Benz and Porsche from Germany, it is estimated that if he wants to produce ships now, there is no domestic engine to provide it!

However, he quickly thought of a problem, the engine of the car can be used on these small ships, what about the 10,000-ton giant ship!

"Oh! In this way, these two patrol boats of ours use our domestic diesel engines!"

"Yes, boss!"

"Then where are the engines used in these 10,000-ton container ships we are producing now?"

"Ugh! At present, our 10,000-ton cargo ship still uses low-speed diesel engines imported from GM in the United States, and there is no production capacity for such heavy-duty low-speed diesel engines in Brazil for the time being."

Hearing this, Fang Lang frowned, and said unsatisfied:

"Isn't there any production capacity in Global Shipbuilding?"

It's no wonder that Fang Lang doesn't even know much about the situation in his company, it's really that his work is too busy and it is difficult to do everything.

Hearing the boss's inquiry, Osman Aragon shook his head helplessly and said:

"As far as I know, Global Shipbuilding now uses low-speed diesel engines made by General Dynamics. We don't have our own engine production capacity."