Compared with shipbuilding technology, the waterway is a more important resource. The most painful part of East Asia is not only the towering Himalayas in the southwest, the boundless Gobi desert in the northwest, and even the sea in the east, God has set up a blockade line: what the ancients called the big valley and what the moderns call the black tide.

Due to the limitations of early navigation technology, it is difficult for boats going east to cross the Kuroshima. At most, they go north along the Kuroshima. Maybe, but maybe, boats can float south along the Kuroshima to Japan and continue to North America along the Kuroshima. This is the route for the Yin people to cross the Pacific Ocean by later generations. It is unknown whether this is the case.

Even if it can be successful, the possibility of success is very small. Although shipbuilding technology and navigation technology were further improved during the Sui and Tang Dynasties, they could not sail like this in the Sui and Tang Dynasties. The so-called southern route of the Japanese envoy sailed from Fujian to Ryukyu, and then from Ryukyu to north to Japan (another older route is called the North Road. It is from Dengzhou, Shandong, crossing the Bohai Sea to Yalu River from the Miaodao Islands, and then traveling east along the west coast of Korea. In the early stage, it must sail to Busan, south of North Korea, and float to the west coast of Japan along the left-hand current. In the later stage, the navigation technology can be improved and it can directly cross the Tsushima Strait without going through Busan. This channel was abolished because Silla unifies North Korea).

It was not until the Northern Song Dynasty that boats could cross the East China Sea, along or through the Black Tide to travel to Japan and Korea. However, the departure point of the Song Dynasty was Mingzhou (now Ningbo), and it was not a direct flight from the Yangtze River. Boats starting from the Yangtze River needed to flow down to the Zhoushan Islands, cross Shuangyu Island (Liuheng Island), and then enter the East China Sea.

In order to transport grain from the sea during the Yuan Dynasty, he managed to sail directly from the Yangtze River to sea. The first waterway opened was to exit the Yangtze River estuary, travel north along the coast of Chongming Island, and enter the Bohai Sea to Chengshanjiao (the easternmost end of the Shandong Peninsula). This waterway is heading north along the coast, and the East Asian coast is affected by the cold wave from north to south throughout the year, so it goes upstream and sails slowly. In addition, the coast north of the Yangtze River estuary is full of shallows, making navigation even more inconvenient, and the whole journey lasts for several months or nearly a year.

The second waterway was opened ten years later. This time, it was no longer going north along the coast, but after leaving the Wanli Changtan north of the Yangtze River estuary, it followed the southwest wind to Qingshui Ocean (the sea water near the coast is turbid, called Huangshui Ocean; the water to the east is clear, called Qingshui Ocean; the black tide to the east is called Hei Shui Ocean), and then followed the southeast wind to the Hei Shui Ocean to enter the Bohai Sea to Chengshankou. This route can usually be reached in half a month, and at the latest is only forty days.

The following year, the third time the waterway was opened. With the help of the last experience, this time it was as soon as it left the Yangtze River and drove directly into the Hei Shui Ocean, and then headed north to form a mountain corner. This waterway route was straighter and the range was shorter. It took only ten days to reach the estuary of Tianjin Haihe River. After the waterway was opened, it became the Yuan Dynasty canal transport channel, and there was no change.

Xiong Jing went to sea this time to take this route. However, there is no Chongming Island at all, Nantong and Shanghai are all in the sea. Rudong is an island, hanging alone outside the mainland. The estuary of the Yangtze River is in Zhufang. Zhufang is a bulging bay to the east. Starting from Zhufang, heading east to the Kuroshiro, and you can reach North Korea or Japan along the Kuroshiro.

Of course, the main purpose of this trip was not to go to Korea and Japan. The main purpose of this trip was to Jeju Island. According to the agreement with Hu Dansorzhi the previous year, he would return to Chu State with his horses this spring. Even the northernmost Ju County of Chu State is not suitable for raising horses. Not to mention the difficulty of mares, the foals born are not as good as their fathers. The characteristics of degeneration are obvious, so the good horses and stallions of Hu Dansorzhi must be transported to Chu State.

After finding Jeju Island, a route will be established between Jeju Island and Langya Port (now Langya Town, Qingdao). Horses are transported from Langya Port to Jeju Island, and the materials required on the island are also transported from Langya Port to Jeju Island. This year, a 520-ton Hengsail cargo ship was launched, and a flying shear test ship of more than 200 tons was launched. These two sea boats will be transported to the Jeju Island horse farm. At this time next year, if everything goes well, the Shaosiming and these two newly launched large sea boats will sail to the Americas through Japan.

Late at night, in Zhu Fangyiyi Ling Mansion, Xiong Jing once again checked the route of the voyage. The route was this route, but the problem was that he didn't know how far the Hei Shui Ocean was from the shore and how long it would take to sail? Fortunately, the Hei Shui Ocean was at the end of the East China Sea, more than 100 nautical miles wide, so it was impossible to miss it. But it was difficult to find Jeju Island. Although he could draw the general location of Jeju Island, what latitude of Jeju Island was, and how many days it would take to sail north after entering the Hei Shui Ocean. This is not clear.

If you are not good, you may go directly to North Korea and then you will have to turn back. Now it is the south wind, so it is not convenient to turn back. The current is from north to south, which is equivalent to going against the wind and against the current, which is really troublesome. The ideal situation is to go to Jeju Island first, settle down, and sail to Korea with the wind. North Korea then enters the Bohai Sea. In Yandi, Zhao State will take a walk around the port, then turn around along the coast and head towards Qi State. Maybe visit the King of Qi, and finally go around the corner of the mountain to return to Langya Port, the northernmost part of Chu State.

Xiong Jing checked the route of this trip in Yiling Mansion. Outside Yiling Mansion, the laughter of the students and sailors came from the sergeant. They would sail into the deep sea tomorrow. These young people did not have any worries, but only laughed happily.

"King, Yingdu is urgently informed." Chang Jiang walked in, holding a copy of Feixun sent from Jinling.

"There is any urgent news so late?" Xiong Jing put down the map and looked at Chang Jiang. He once again mentioned what he had said before: "Let's go here and sail into the deep sea, you..."

Chang Jiang was the chief servant of the former king Xiong Yuan. He served Xiong Yuan since he was a child. He was in charge of Qin together when he was in Qin. King Qingxiang was seriously ill and the people of Qin were not released. Xiong Yuan pretended to be a master and returned to Chu. When Chang Jiang was old, Xiong Jing was very worried that he could not stand the storm on the sea.

"I swear to follow the king to the death." Chang Jiang immediately bowed and bowed his head when he heard this. "Where will I go where the king goes, I will go."

"But there are winds and waves on the sea." Xiong Jing knew his intentions, but he was still worried.

"Don't worry, I can kill a Qin soldier with my armor." Chang Jiang pretended to be majestic, and Xiong Jing couldn't help laughing when he said this.

"Okay. You live with me." Xiong Jing said. After hearing his agreement, Chang Jiang stood up and handed Feixun over, saying, "This is from Jinlingyi. It was already dark when Feixun arrived in Jinlingyi."

"Yeah." Xiong Jing opened the news and said only two things: one is that Hu Shang Hu Dansaozhi had entered Muling Pass, and the other is that Zhao Concubine urgently summoned herself to return to Ying, but she didn't say anything.

Of course there was something wrong with the mother's urgent call, but what would happen then? Xiong Jing couldn't figure it out. At present, Qi Ao was responsible for the government affairs of Chu State, one person served for one year, and seven people discussed major issues. In fact, there was nothing big. Ao Cang of Qin State was taken away, and the harvest was bad last year. It was reasonable to wait until autumn when the war was launched. All counties and towns in China were in charge of their own affairs and often argued with each other, but this was not a big deal.

"Return to Yingdu," Zhao Fei did not say it clearly. In fact, it was not easy to say it explicitly. Xiong Jing did not know that the immortal medicine that shocked Chu and made all countries in the world salivate was about to enter Ying. He decided to go to sea as planned. "The unspoken people went to sea tomorrow and they would return to the capital in two months. Please don't worry about it. The affairs of the country have been entrusted to Qiao, and the affairs of the city have been entrusted to the city Yin. If there is any major event, you can discuss it with them..."

"King, since the Empress Dowager is urgently summoned, there should be something big. It's just that it's hard to say it clearly in the news..." Chang Jiang knew Concubine Zhao better than Xiong Jing. After hearing Xiong Jing's words, he felt something was wrong.

"Then what's the big deal about Ying?" Xiong Jing looked at him and asked.

"I don't know. I think the queen has never summoned the king so urgently, if it weren't for a big deal..." Chang Jiang said.

"It's impossible that someone rebelled, right?" Xiong Jing laughed. He felt that apart from this incident, his mother would not rush to summon him.

"Of course this is not." Chang Jiang smiled. The country of Chu was not calm, and there were struggles in various counties and towns, but the political situation had never been as stable as it is now, and there was no way to talk about rebellion - rebellion is meaningless, and if the rebellion is successful, it is only the lord of a city. You cannot force the whole country, and you even have the lord of a city, because you have an incorrect position.
Chapter completed!