When the day's trial voyage finally came to an end when it was dark, Yu Xiaotian returned to Nanri Island with the boat, and was surrounded by many ships into the bay.

The craftsmen, who could not make it to the sea with the ship to test the waters, waited here for a long time, and as soon as they saw the ship return intact, they all flocked to the shore to greet them.

The sampan dragged the new ship again, towed it to the dock, and handed it over to the men on the shore to slowly tow the boat back to the dock again.

After a day's trial, the shipwrights did not dare to be careless, and hurriedly boarded the ship to conduct a careful inspection from beginning to end to see if there was any problem with the hull structure and whether there was any water leakage.

Even if there is such a situation, it is normal, after a ship enters the water from the dry dock, the force on the hull changes drastically, and some problems that can not be found can be manifested after launching and testing the water, so in accordance with the conventional rules in this era, after a new ship is launched and delivered, it is necessary to test the water for a few days in the area of the ship, thoroughly inspect the hull, and check all kinds of sail gear and rudder winch on the ship until there is no problem, and then it will be delivered to the owner of the ship.

So it was business as usual at Seawolf, too, and after a day of testing the waters, the new ship was immediately towed back to the dock for a major inspection inside and out.

After another day of inspection the next day, Guo Fu told Yu Xiaotian: "The big boss, the small people of this new boat have been checked inside and out, except for a few seams found that the boat is a little leaky, the rest of the parts are very strong, and no problems have been found!"

It's just that I don't know how the big boss of the road feels about using this boat after taking people to test the water? ”

Yu Xiaotian nodded and said, "That's good!" After I took someone to test the water yesterday, I felt that the boat as a whole was not very far from the performance I wanted, and the speed was not yet as fast as I wanted! The sails also need to be adjusted, and the spinnaker in front can be enlarged! In this way, the speed of the boat can be increased even more.

In addition, the rudder operation is a little astringent, a little stuck on a few points, and the helmsman is a little laborious when he pulls the rudder rod.

There is also a rudder rod that is a little longer, which can make the helmsman more effortless when he pulls it, and the angle cannot be adjusted for the time being, if the angle of the rudder movement can be adjusted, the boat will be more flexible, so far, I feel that this boat has not fully exerted its performance!

In addition, the front of the ballast stone at the bottom of the ship was too heavy, and the bow could not be raised when it ran up, which also affected the speed, and the roll was a bit large, which was not as stable as I thought.

But on the whole, this boat is still good, at least in terms of speed, there is no one else in our ship for the time being! In the next month, I will personally lead the boat or let the boat go to sea every day to test the waters, and strive to find out more faults, and the next boat will be built and modified at the same time, and when the next boat is neatly built, the existing problems can be basically solved. ”

Guo Fu wrote down the questions raised by Yu Xiaotian one by one, and promised that Yu Xiaotian would start checking and revising them as soon as he returned.

In the next month, although Yu Xiaotian couldn't take this boat out of Lang every day for sea trials, he would spare a day in at least three or five days to take this boat out of Lang to test the water.

After a month, the performance of the ship was basically determined, this dhow is indeed a very good type of boat, fast, simple to operate, very flexible, requiring a small number of sailors, not only very suitable for offshore navigation, but also very stable at sea even in bad weather.

But it can't be said that this kind of ship is perfect, the biggest problem just appears on the sails, although Yu Xiaotian tried to get a large number of Indian canvas from the Spaniards to meet the demand for sails for this new ship, but because the force point of this kind of sail is relatively concentrated, this kind of Indian canvas is also made of natural material cotton and linen, so the strength is a little less than Yu Xiaotian's requirements.

Over the course of a month, during several trial voyages, the sails, especially the bow sails, were torn in several places where they were stressed, and they had no choice but to return to the island for repairs.

At this time, Yu Xiaotian felt that he was still a little too optimistic, although this dhow was indeed a very good sailing boat, but the problem of sail loading limited its performance.

If you want to solve it completely, only when chemical fiber fabrics are invented to greatly increase the force strength of the sail, this problem can be completely solved.

However, chemical fiber fabrics are not something he can solve now, which requires a complete set of chemical technology development to complete such a thing.

So the only thing he could do for now was to thicken the stressed part of the sail to meet the immediate needs, and it was necessary to have spare sails on such a ship, and if the sails were torn, there would be a spare set of sails for the people on board.

In addition to this problem, after a month of testing the water, the boat basically gave full play to its characteristics, but because the wooden structure of the hull was thickened and strengthened, the dead weight of the hull increased, which affected the speed of the ship to a certain extent, and it was not able to run the speed that Xiaotian wanted, which was lower than the speed he expected.

But even so, the speed of this ship has been very satisfactory to the people of the Sea Wolves, every time it goes out to sea trials, there will be ships to accompany this new ship to the sea, but every time as soon as it goes out to sea, the ship will immediately break the waves and leave, leaving the ship accompanying it out of the sea, and it will not even smell a fart.

Therefore, this new ship soon received a nickname of flying on the water among the sea wolf tribes, and every time they went out to sea for sea trials, they would jump to their feet and cheer at the boat when they encountered the sea wolf tribes along the way.

Later, Yu Xiaotian directly named the ship "Flying Fish", which was specially used as a test ship.

After testing the water several times and determining the safety of the hull structure, Yu Xiaotian ordered that the ship be equipped with four six-pounder guns, two on the left and right sides, and a twelve-pounder gun at the bow as the main gun.

After loading the cannon, Yu Xiaotian first let the ship be tested by the sea to check how strong the hull was under the vibration of the cannon recoil.

After the test gun was tethered on the shore, the stressed parts such as the hull and internal compartment were inspected and there was no cracking, so Yu Xiaotian asked the ship to go to the sea for an artillery test.

After some test guns, Yu Xiaotian came to the conclusion that the ship was absolutely sturdy, and he ordered the sailors on the ship to fire the two six-pounder guns on the side of the ship and the twelve-pounder guns on the bow of the ship in one direction at the same time, and the ship successfully withstood the recoil of the three guns, which was just a huge shock to the hull, but it did not cause a destructive impact on the hull structure.

In this way, the ship basically has combat effectiveness, and there is no need to worry about overturning or shaking your ship because of the cannon fire when fighting people at sea.

So Yu Xiaotian once again arranged a new task for this ship, sent the personnel of this ship, loaded about 20 tons of cargo, stuffed almost the entire cabin, and went out to sea towards Jilong Bay.

Through such a voyage, the stability and safety of this ship can be tested when it is fully loaded, the speed of the ship, and the wide and harsh waters.

In order to ensure the safety of the ship and the people on board, Yu Xiaotian arranged two other boats to serve as escort ships for this boat and accompany it to Jilong Bay.

As a result, I didn't expect that on the fifth day, the Flying Fish ran back to Nanri Island first, and the temporary captain who led the boat out told Yu Xiaotian: "The big boss is in charge, and the small one is back with the boat first!" ”

Yu Xiaotian asked him, "Why did you come back by yourself?" What about the other two? ”

"Enlighten the master! Those two boats are just too slow! When we went, our Exocet was full of goods, and they couldn't catch up with us, so we had to wait for them as we went, and finally we met the Black Boss at Chicken Coop Bay.

The ship was easy to unload, and in less than a day it was finished, we set sail and returned according to the orders of the great master!

The two rushes were really too slow, and the Flying Fish didn't have much cargo, so the subordinates wanted to see how long it would take for the ship to come back as soon as possible, so they discussed it with the brothers on the other two boats, and brought the ship back first!

If the subordinates guessed correctly, it is estimated that they will have walked half the way at most, and they will not be back until at least tomorrow night! The captain replied triumphantly.

Yu Xiaotian was very happy when he heard this, and then asked, "So how long did it take you to start from Jilong Bay and return here?" ”

The captain immediately replied: "The big one, after the small one set off from Jilong Bay, he came back all the way, and it took a total of one day and one night plus more than two hours or so!" I ran back! ”

Yu Xiaotian silently calculated in his heart, through the distance he estimated from his two trips to Jilong Bay, the straight-line distance from Nanri Island to Jilong Bay is about 300 kilometers or even farther, plus to detour a certain road, it must be more than 300 kilometers down, and one day and one night plus an hour is twenty-eight to twenty-nine hours, so it can be roughly concluded that the average speed of this new ship on the road should be more than fourteen or fifteen kilometers per hour, and when converted into nautical miles, the average speed of this ship is about seven or eight knots per hour.

Such an average speed is already very fast in this era, and even the Galen boats currently used by Westerners may not be able to run such an average speed.

And according to his experience in several sea trials, the maximum speed of this ship can basically reach about ten knots, or even exceed the speed of ten knots, which also shows that the speed of this ship is quite fast.

Although compared with the speed of some modern warships in later generations, which often ran more than 30 knots or even 40 knots per hour, this is nothing, but some common freighters in later generations have a speed of about 123 knots to 156 knots per hour at sea, and fast freighters are about 20 knots, but they are all relying on the strong power they carry to hit, and now only relying on the current sail power, the ship can only run at such a speed, Yu Xiaotian thinks that he is enough to be proud of for the time being.

Of course, among the sail warships, there are also types of ships that can run faster than the current sloops, such as flying clippers, but so far, it is not yet time for him to build flying clippers, and the technical reserves are too weak, so he can only come step by step first, starting with the construction of this kind of dhow with a relatively simple structure, small displacement, and relatively low technical difficulty, and then gradually let the shipbuilders accumulate experience, and then it is not too late to consider building bigger and faster sailboats.

(Today, special thanks to Iron Hand for the reward from the mistress!) It's the beginning of the month, so please leave me your precious monthly pass! Please, I want a monthly pass! Thank you! ）