Several shipwrights were indeed experienced, and they estimated the materials and labor required for more than an hour based on the ship model and drawings. Zhao Yu took it and looked a little big, he didn't expect that a wooden ship without any mechanical and electrical facilities would also require more than a hundred processes. But now that the arrow is ready to be sent, Zhao Hao has no way to retreat, so he can only ask while watching, and several old men also think that Zhao Yu is a child, and it is a matter of life, and they all do their best to explain in detail.

Zhao Hao was originally engaged in ship design and manufacturing, although the materials and processes used in ancient and modern shipbuilding are very different, but after all, the principle is the same, and it can be regarded as a lesson under their explanation. He has a big heart, and all he sees in front of him is a ravine, which sounds natural and effortless, but it is also quite rewarding, making him understand some issues that he did not understand in his previous life, and even quite controversial in the academic world. He thought that if he could return to his previous life, he would be able to become a world-class expert on ancient ships by relying on these things, after all, the 'descendants' were all speculated based on archaeological excavations and records in the history books, and he had not only seen it, but also participated in the manufacture of ......

Choosing wood is the first step in shipbuilding, and Zhao Yu found that the ancients were really smart and extravagant. The ingenuity lies in the fact that they have discovered the difference between the northern and southern timber in the construction and use of seagoing ships, the southern timber is suitable for seawater, and the northern timber is not suitable for seawater, and the seawater alkali is bitter and harmful to the wood, so the northern ship timber cannot be durable when it enters the sea. Know the technology of selecting ship materials of different strength according to the different stressed parts of the ship, the keel is Masson pine, the keel bow is camphor wood, and the mast and rudder bearing seat are nanmu; The outer board is cedar, the bulkhead board is cone, and the important parts such as the mast, rudder bearing, and keel bow are made of hard wood and camphor wood.

Zhao Yu listened to a cold sweat, Nanmu, camphor wood, Tieli wood these things in the previous life are about to catch up with gold, some are priced by grams, not to mention the whole ship, even if a small part of the interior decoration is used, everyone has to envy the Harazi flow to the ground, that is not sticking wood to the ship at all, it is pasting gold. Think about it, fortunately, in the Great Song Dynasty, the primeval forest in Qiongzhou has not been destroyed, and your own things don't need to cost money, just let people cut them down, otherwise you will have to go bankrupt if you change a few ships!

After the wood is bought, it cannot be used at the moment, and it must be dried in the sun, and observed while drying, and when the wood is moderately dry and wet, you can start to dissolve the wood. The so-called solution of wood, is from the wood to solve a variety of different shapes of shipbuilding materials and planks, the skeleton with square materials, the side of the ship, the bottom of the board with planks, a ship needs to use dozens of different kinds of materials and planks, and the vast majority of these materials are arc-shaped, how to maximize the use of wood, is a test of the craftsman's talent, this is not to worry about Zhao Yu, think these masters must know the cost control.

Once the timber is ready, you can start building your ship. After the keel was erected, the shipwrights installed beams and firewood on the keel, and then fixed the pounds on the side of the hull. Once the skeleton is erected, the decks are then mounted to form a complete hull. This process is simple to say, in fact, there is a lot of work, the square material and the square material should be connected with trapezoidal tenons, and the holes between the plates should be drilled and fixed with iron nails.

The final process is plastering and painting. It's a seemingly easy, but equally skillful task. According to the climate of Hainan, Lingao people like to use tung oil, lime and coconut shreds to adjust the mortar in different proportions, and wipe the mortar into the seam of the ship, which is mainly used to seal the nail holes and smaller pores, seal the iron nails, and prevent the iron nails from rusting and corroding. When the mortar in the crevices is air-dried, tung oil is used for the first time and paint is used for the second time. The boat is ready to enter the water.

After entering the water to confirm the safety of the hull, it is possible to begin the installation of internal facilities and configured weapons. Then after about ten days of sea trials, it can be delivered. Now the trial voyage of a new type of ship must not only go through the test of various sea conditions, but also pass the test under different climatic conditions, and in the process of testing various equipment and weapons on the ship, everything can be finalized and produced after everything is OK, and the time will last for several months or even years......

"Ladies and gentlemen, how wrong can you be in estimating the man-hours?" Zhao Yu finished 'studying' and asked with a slight arch of his hand. It's not that he respects technical talents, but that he is frightened by a few old men kneeling down and kowtowing at every turn, worried that they will return the favor.

"Your Highness, the grass people don't dare to bear the name of the master, just call it a cheap name." Sure enough, a few people returned the salute with sincere fear.

"Several masters are the leaders of my South China Sea shipbuilding industry, there is nothing to be ashamed of, don't be so polite in the future, otherwise this king will be angry!" Of course Zhao Yu would not have this intention, wouldn't he just look down on himself in his previous life, he pretended to be angry.

"Your Highness is like this, and the little old man is welcome!" Boss Li said this in his mouth, but he still gave a big salute before he said, "Your Highness, although the time is in a hurry, the estimates of several of us are almost the same, and even if there is a big mistake, it will not exceed one day." ”

"Well, in that case, this king has an idea to ask a few masters to take a closer look at it and see if it can advance the construction period." Zhao Yu tried his best to make himself more mature, so that these old men would not think of themselves as children who didn't understand anything and were talking nonsense here, he coughed lightly and nodded seriously.

"I wish to listen to His Highness's wonderful method!" Several old men said in unison.

"This king thinks so...... Zhao Yu saw that they couldn't hide the smile on their faces, and knew that he had pretended to be a failure, and he could only shock them with his 'real talent and real learning', "This king thinks that we only have three shipyards that can be put into use now, so we can only renovate one ship and then renovate the next one." Therefore, even if there are more people, it is difficult to carry out the construction, and the construction cannot be carried out at the same time, which makes the construction period extended, yes or no? ”

"What His Highness said is exact, it is precisely because of the limitations of the dock that even if you have the ability, it is difficult to complete it within the time limit even if you don't stop the construction day and night!" Boss Li said, and the others also nodded to indicate that it was exactly the case.

"Well, in that case, it is not permissible to divide all the participating shipwrights into teams as needed. a team dedicated to the demolition of useless objects on old ships; The second team is responsible for preparing materials, and is responsible for dissolving wood according to the drawings and processing them into various parts required; The third team is responsible for renovating the old ships entering the dock and installing the processed components; Team 4 only does ash and paint work; Team 5 is to test the waters and assemble the remaining parts and weapons. These teams can work cross-construction according to the schedule, or they can work at the same time. What do the masters think? ”…… (To be continued.) )