This time, Li Yuanjing's goal is not just to walk around the South China Sea and come back.

With a fleet supported by steam power, Li Yuanjing's goal is naturally to circle half the world.

So, according to the plan in Li Yuanjing's heart.

The fleet was to depart from the port of Haiju, pass through Tamna, Dongju, and then pass through the Wa Kingdom to Hokkaido, where they would pick up the Yang family.

As early as the beginning of last year, the imperial court began to deploy in Hokkaido, and the Yang family got Li Shimin's secret permission and began to cooperate silently.

So there is not much resistance from the North Sea side, and after leaving Hokkaido, it will be the real test for the fleet.

Or rather, the voyage has just begun.

Next, it will go all the way east along the Bering Strait to North America, then go south, enter South America, sail west through South America, enter Australia, and then go north, reach the South China Sea and other regions, and walk around there before actually returning.

This time, Li Yuanjing's goal is still to detect, and he will not go too deep into a certain area.

The main purpose is still to find routes, determine suitable locations for immigrants, and then plan and start immigration.

If you have a map of the world in front of you, then all this is not a problem.

But Li Yuanjing faces more problems than that.

Although steam power can ensure speed, it can ensure the ability to navigate in bad weather.

But the energy problem is also something that Li Yuanjing does not dare to ignore, once their coal and fresh water are exhausted, the entire fleet will be finished.

Paddling by manpower? Don't even think about it, how long will it take to row such a heavy boat?

According to previous tests, it was named the flagship of the Haizhou battleship by Li Yuanjing, with the most economical speed and the maximum endurance of about 6,000 miles.

As for other small ships, the maximum endurance is only about 4,000 miles.

Although it may not seem reasonable, small boats have the benefits of small boats, they are light on their own, and they don't need much power to propel.

But even this is not enough, according to this voyage, those 500-ton ironclad ships, in the case of full load, sail at the most economical speed, can run as far as Hokkaido, if it deviates on the way, or do something else, it is tantamount to a fool's dream to run to Hokkaido.

Obviously, the maximum endurance is only an ideal situation, and in reality, this distance will be shortened a lot, and it is actually a bit conservative to calculate it by subtracting 500 miles.

This is also the reason why Li Yuanjing is transferring five converted ships alone, he must carry more supplies.

The supply ship is actually a cargo ship, and all the equipment on the ship is not installed except for the sealed cabin and power system.

So, the ship is a hundred meters long, twenty meters wide, and seventeen meters high.

Li Yuanjing used various methods to install a cabin for storing fresh water and a cabin for storing coal.

A container was then attached to the energy source, but even then, the transport ship could supply the entire fleet once at most.

This refers to the situation in which all ships are replenished to their maximum payload.

This also means that the Haizhou battleship can run as far as 6,000 kilometers, and other warships can run as far as 4,000 kilometers.

At this time, whether it was North America or South America, only indigenous people existed, and the world's human civilization during this period mainly existed in Asia and Europe, as well as Egypt.

In addition, in order to make the ship run faster and longer, all the coal used on the ship is coke, not loose coal used by ordinary people.

Therefore, these five converted ships can barely increase the range of the fleet by about a thousand kilometers.

But 6,000 kilometers is not enough, and he has no time to build transport ships, so the only way is to be self-sufficient.

The personnel brought by the fleet this time are much more complicated than the last time, there are professional exploration of coal mines, this is listed by Li Yuanjing as the top priority, at the critical moment, they have to find supplies on the spot.

There are also professional coking craftsmen, considering that the voyage time is too long, Li Yuanjing even brought a team of 100 shipwrights, who can maintain the ship at any time and repair it when necessary.

These are all professional technicians, and the coolies can only be responsible for the accompanying soldiers.

In addition to the soldiers on a few ships, the ships and supply ships carried anywhere from a few hundred to a thousand soldiers.

The number of people who went to sea this time was as high as 8,000, although it was not as good as the last time, but the meaning was not the same at all.

The fleet departed from Haiju and arrived in Tamna shortly after sunset the next day.

Night sailing is more dangerous and there is no power system to illuminate, so the fleet generally does not sail at night.

The voyage is determined according to the length of daylight, which is about 12 to 13 hours, and if the fleet does not consider the problem of attrition, it took two days, which is about equivalent to running nearly 300 kilometers per day on average, which is equivalent to about 25 kilometers per hour on average.

This is still the transport ship dragging its feet, if these warships run at full power, a day and a half will be enough.

Of course, this is the maximum speed of the fleet, and when it really switches to economic mode, the average speed is only about eight or nine knots.

On average, it's about 170 to 200 kilometers a day, and if it goes well, they will arrive in Alaska in about 30 to 40 days from Hokkaido.

These are all ideal data, and Li Yuanjing also knows that it is impossible to be exactly as imagined.

The fleet stayed in Tamna for one night, set sail again at dawn the next day, and went straight to Dongzhou.

After seven days of sailing, the group finally arrived in Hokkaido.

And this is a little different from what Li Yuanjing imagined, but compared to the half-month voyage of ordinary ships, this speed is fast enough.

But now that he came to Hokkaido, Li Yuanjing has been more or less relaxed.

"Order, disembark and rest for five days, supply that should be replenished, inspection that should be checked." The fleet entered the port, and Li Yuanjing ordered directly.

This was Li Yuanjing's preset supply location, and as early as last year, the officials who came here from the imperial court made preparations in accordance with the relevant requirements, fresh water, food, coke, and all the same items.

Of course, these are not the only ones who are loaded here, there are also five hundred selected accompanying boat girls, this trip is too long, without these boat girls as a vent, who knows what will become of these people in a few years?

But there is no doubt that with the departure of the fleet, a new era will open in the history of human civilization, and these people belong to the founders of this era.