The fleet went north along the coast of Jiuzhen and Jiaozhi, and although Cao Jun had several ultra-long-distance voyages, the navigation technology of the Han Dynasty was still in its infancy after all, even if it was the whole world, it was still in its infancy.

Therefore, at this moment, the navigation at this moment, if you can go to the shallow sea, you are not willing to go to the deep sea, and if you can turn to the shore, you will not take the so-called straight line, as for the shore, there are many corals and reefs, which depends on the experience of the predecessors.

The coast is the best route to build, even so, for this construction, it takes a lot of time and money, with new and old navigators to take reconnaissance ships, to explore reefs, undercurrents, whirlpools, etc., and draw nautical charts, so that new navigators can compare the real thing, watch Sinan, and determine the location of the ship.

Deep-sea navigation is much more difficult, above the deep sea, there is no end in sight of the ocean, there is no reference at all, even if there is a simple nautical chart improved by Cao "sex", even if you are on land, holding Sinan, you can't ensure that you are walking in a straight line.

What's more, when a big wave occurs, the position is shifted, and there are reefs and whirlpools blocking the way, so you have to make a detour, which is enough to "get lost".

And the typhoon is the terminator of ocean-going ships, and when you meet them, except for the new Cao Jun sea boats, all the ships in the rest of the world have no chance of survival.

Therefore, Cao "Xing" knew that on the other side of the strait, there was a treasure island with a vast territory, fertile land, abundant products, and grain ripening three seasons a year, which could be used as a foundation, and could not be occupied.

At least not until the voyage is small.

When the fleet reached the middle of Cochin, just as it turned to the east, facing the sea, a few cupola sticks came out, and slowly the sticks began to grow taller, and the yellow characters on a red background appeared, the Cao flag, and then six sails were "exposed".

A flotilla of four seagoing ships was completely "exposed" out of the sea, and adjusted its direction to face the fleet.

"There is a situation! The 3rd Patrol Detachment of the South China Sea, request convergence! ”

The lookout who stood on the lookout on the tip of the mast looked at the other party's flag and said loudly.

Nowadays, the only people who can sail on the sea are Haikou, Western maritime merchants, and Cao Jun, and the tripartite forces.

And Haikou was scared by Cao Jun, seeing Cao Jun was like a mouse seeing a cat, and he was still a fat mouse of a cat that couldn't run, so he didn't dare to sail on Cao Jun's route.

The Cao Jun route is patrolled by a small fleet in the form of detachments, and the standard is one three-masted sea ship, three sloops, and assault boats and lifeboats are also hung on the side of the ship.

On the vast sea, the patrol fleet that is standard with this is the standard, and after encountering the ships of the pirates, they smell the fishy smell and speed up.

One or two hundred pirate fishing boats, facing the charging patrol fleet, are like a hundred bare-handed eighty-year-old men who encounter a four knights riding an elephant and three horsemen, often being crushed back and forth, and they are only abused for their lives.

Cao Jun's sea ships have wolf smoke, if the Haikou do not disperse and run, then what they are waiting for is not the opportunity to annihilate the patrol fleet, but the wolf smoke is ignited, attracting several patrol fleets of the same formation around it.

At this time, with the speed of the Haikou fishing boat, it is difficult to run.

This kind of thing happened several times, and after that, the pirates no longer dared to touch the tiger whiskers of the Cao army's naval division, and they were careful to even sail into the Cao army's route, and avoided it if they could, even if they were so usual, they had to be careful at all times.

Because of Cao Jun's navigation around the ocean, Cao Jun also has shark fishing and whaling fleets, these fleets are indefinite routes, usually shark hunting, whaling, increasing the meat reserves of the granary, providing leather for the ordnance workshop, and also providing cod liver oil, white candles and other raw materials for the "medicine" workshop.

While hunting sharks and whaling, when they see the wolf smoke of the patrol fleet, they will rush over to support, and they will not be polite when they encounter pirates.

Haikou is a treasure for Cao Jun!

Haikou fishing boats can be used as fishing boats for troops on the seaside, inland rivers, and lakes, and even some good ones can be picked out as Cao Jun's offshore and inland river patrol boats.

The pirates often carry some finances, some food enough to go to sea to eat, and weapons even if they are poor.

Haikou is most valuable to himself, there is a shortage of people in the Jiaozhou mine, a shortage of people at the construction site, a shortage of people for road construction, a shortage of people for plantations, a shortage of people for weaving workshops, and a shortage of people for the death army.

There are many places where there is a shortage of people, even if you capture a disabled person, as long as you can move your hands, then you can weave cloth in the weaving workshop and so on, and your feet can move, then you can do more, and you need porters in every place.

If you can capture a Haikou back, you can record military merits in the Cao army, and you can use it to exchange for one acre of fertile land or five acres of wasteland to reclaim it yourself, or you can accumulate it to ten, and it is more than enough to be a military commander or a fake chief.

This time it was the main fleet again, and if he could meet the Haikou, it would be an unexpected joy and a windfall, so when he saw the ship, the Haishi did not have a trace of nervousness, and was a little excited.

When he saw the sea boat, he was basically sure that it was his own person, except for Cao Jun, no one had a sea ship of this size.

"Report! Lord! The third patrol fleet in the South China Sea, please come and visit! ”

On the flagship, after receiving the flag, the herald reported to Cao "Xing" on the bow of the ship.

Hearing this, Cao's "sexual" face turned white, and he instantly suppressed it: "Let them come!" ”

The successive bad news made him have some psychological shadows.

The patrol fleet joined the fleet, and after the routine inspection and safety, the three sloops remained on the periphery, and the three-masted ships headed for the flagship.

The two seagoing ships were side-by-side, one by one, and the strong sailors pulled hard so that one side of the ship was connected to a string, and a two-foot-wide gangplank connected the two ships.

Cao "sex" put away his inner thoughts, and walked over to greet him, at this time, he slowly climbed onto the gangplank against a military general, and tied a safety rope behind his back, and it took him a full quarter of an hour to take a distance of three or two steps.

"Gong Du! Why are you kid here? ”

After seeing me clearly, Cao "Xing" was overjoyed, rushed over, and pulled Gong Du over.

Gong Du blushed and scratched his head, feeling embarrassed for the cowardice just now.

At this moment, a loud voice rang out.

"Haha! I can't think of two steps away, you can walk for so long, it's enough to have a meal and come over! ”

Cao "Xing" looked at the place where the voice came from, and saw a powerful man, from opposite to the sea boat, with his feet on the gangplank, and jumped over.

His eyes were full of excitement.

"The last general, Lu Fan! Meet the Lord! ”

Cao looked up and down, and saw that Lu Fan had lost some weight compared to when they met in Xuzhou, thinking that it was a serious discomfort with water and soil, which tortured him for several months.

Between his eyebrows, he was a little more energetic, faintly sharp.

"Not bad! Ziheng! Welcome back! Look at your momentum, in the past few months of recuperation, you have been learning from others! ”