"This is the H-800 type we designed, as the name suggests is an 800-ton wheel, which is a pure sailing ship with three masts and a Chinese@Chinese sail suit."

Shi Jiantao continued his introduction: the H800A removed a mast and became a brig, with a small boiler installed in the tail to drive the steam winch; The H800A1 had the boiler out of the box again, and a chalk gun was installed on the fore and aft decks; The H-800S is a steam engine sail hybrid......

If it is divided from the function, it can also be divided into different subtypes such as special agricultural and mineral bulk product ships, liquid carriers, standard cargo ships and mixed passenger and cargo ships. The modular concept is implemented in the design, so that it is easy to modify and repair.

"In addition to the most common H-800 series, there are also H-500, H-1300, H-2000 ......," Shi Jiantao said, putting the full range of chalk crab wheel type manuals compiled by Xiang@Gang Shipyard on Wu De's table, each type of ship has beautifully drawn line drawings, renderings and jishu parameters. This attracted Wude's attention.

He carefully flipped through the atlas, if he could really build a large number of transport ships like "dumplings" as Shi Jiantao boasted, the current planning institute's biggest capacity allocation problem would be greatly alleviated.

Wu De was born as a fisherman and has been a sea for many years! Army, a little bit about shipbuilding and the like. He took a look at it, the common point of these chalk crab wheels is that they use the same base line, and many of them have the same hull cross-section, which is convenient for standardized production, just like the A320, A319 and A321 passenger planes on the original plane are only different in length, and the motivation is slightly different. The hull of the first generation of chalk crab ships was modeled after a small wooden cargo ship built by Japan at the end of World War II. In the middle of World War II, U.S. submarines went out to the western Pacific to attack Japanese merchant ships. In the face of the U-boat threat, Britain turned the merchant ships into parts, and the convoy was divided into parts, but it was the same as the convoy, and tens of thousands of wooden transport ships were built and scattered on the ocean for the Americans to catch.

Although most of these wooden ships were later broken into pieces by the Americans' Katerina patrol aircraft and carrier-based aircraft, this is still a practical, process, seaworthy, and damage-resistant design based on the industrial base of Lingao, and the use environment is from Southeast Asia, China to Japan, and the goods to be transported are also very different.

Of course, Shi Jiantao and others did not completely copy the design of the chalk crab wheel, considering that there are almost no qualified ports and wharves in this time and space, and most of the estuaries and bays used as ports have shallows and dark sand. The draft of the ships should not be too deep, and the ships they need at present are mainly for offshore transportation, and the farthest is the Korean Peninsula, Siam in Vietnam, and Japan. The ship is a fat, flat-bottomed, shallow draft - similar to the "speedboats" that the Dutch used extensively on the routes. While trying to load more cargo, we should minimize the draft so that we can use the natural harbor to the maximum extent possible, and it can be easily floated in the event of a stranding.

In terms of power, as a "B shipbuilder", Shi Jiantao knew very well that it was impossible for Hong Kong shipyards to distribute high-end goods such as marine high-horsepower steam engines and fire-tube boilers. The power I used back then was mainly a "hot bulb diesel engine", and Lingao could not make a diesel engine or diesel at present. Therefore, Shi Jiantao's choice of power for the chalk crab wheel is still sails.

Considering that in the future, the chalk crab ship will be mainly used in the two operations of Zhejiang and Dengzhou, and then do some coastal trade by the way, so the Chinese sail with high efficiency in offshore navigation and manpower saving is still adopted.

However, the use of "Chinese sails" on the chalk crab wheel was designed according to the drawings provided by the "Junk Society", a senatorial society. These designs actually come from the experience accumulated by Chinese sail enthusiasts in the 20th century in Britain and the United States for many years, combined with modern aerodynamics, structural mechanics, using canvas, winch, pulley, block and modern technology, and have undergone simple wind tunnel testing, reliable xing, handling xing and higher efficiency than traditional Chinese sails.

Shi Jiantao found several research and design works on Chinese sails written by Europeans and Americans in Lingao. Originally, he wanted to set up a special sail laboratory in Hong Kong, but he was explicitly opposed by the big library, the Ministry of Science and Technology, and the navy: the sail laboratory must be located in Lingao. According to the resolution of the Senate, all scientific research departments involving Jishu Kai are not allowed to be located outside Hainan Island.

However, the Lingao shipyard in charge of Zhou Ke has no interest in running a sail laboratory. Although Zhou Ke is completely unfamiliar with sails, he is full of admiration for European-style sails and sneers at Junk sails. Naturally, I wouldn't be willing to take the lead in setting up a sail lab. Shi Jiantao looked for people everywhere and kept finding the Ministry of Science and Technology. The Ministry of Science and Technology has a central fluid laboratory in the high mountain range, and the wind laboratory is essentially a wind tunnel laboratory in their opinion.

In the end, according to the Shiyan results of the fluid laboratory, Shi Jiantao chose a suitable Chinese sail suit as the sail type of the chalk crab wheel.

Shi Jiantao took the opportunity of returning to Lingao to sell the chalk crab wheel to improve the design of the chalk crab wheel and the Chinese-style sail and control parts. Shi Jiantao, who had prepared a full set of drawings and process materials, was full of ambition and could only rely on the approval given by the Planning Institute.

Although the chalk crab wheel implements the guiding ideology of simple structure, in the specific design and construction, it concentrates on the various new jishu implemented by the crossing group in this time and space: iron keel and ship ribs, power-assisted manual steering wheel, improved Chinese sail mounting, hand-cranked winch, ...... It also uses a "structural material of iron-clad wood" that they used only in the construction industry in the past. That is, some structural timber with large bearing capacity, which used to require larger and harder wood, can be spliced with multiple pieces of wood after the use of "iron-clad wood" structure, and some inferior wood can also be used. Iron sheet can provide extremely high tensile strength, and this iron-clad wood material is a very common building material and ship material in the United States, Germany, Northern Europe, and Russia in the old time and space. Iron carpentry beams have also been widely used in the construction of Lingao Construction Corporation. was criticized by the Lingao Times as "the tofu scum of the new time and space", and it was not until the architects of the construction company broke into the newspaper office that Ding Ding was given a meal of "love science".

"How long will it take to build your ship?" Wu De finished reading the atlas and jishu information and asked.

"For the H-800 standard model, if all the parts are manufactured, it will take no more than 60 days from assembly to launch. In the future, it will be faster to become proficient, and the final assembly time will not be more than 3 Jiantao returned to Lingao Shipyard this time to observe the construction process of the 901 project ships that can be put into use in 90 days, and believes that according to his ideas, it is not a problem for a standard chalk crab ship to complete the final assembly and launch in 60 days.

"So where are you going to produce these parts?" Wude asked. He knew the concept of the crab wheel: the parts were manufactured in various factories, and the final assembly was only in Hong Kong. It is said that the construction was completed in 60 days, and most of them were ambushed.

But in the 20th century, it was possible in the United States, which had the largest and most complete industrial system of the time. Although Lingao in this time and space also has the largest and most complete industrial system in the whole Shijie, it is impossible to provide such a large production capacity.

At present, the production tasks of the various factories in Lingao are already at full capacity, especially the main raw material supplier for the construction of wooden ships: the wood processing factory, whose ship timber production line is already producing in 24-hour shifts, and it is unlikely to supply raw materials to the Hong Kong shipyard again. Apparently, Shi Jiantao has to rely on Hong Kong's own timber processing plants. However, this factory is very weak in terms of production capacity and jishu level.

"I'm ready to use the local production capacity in Guangdong." Shi Jiantao finally threw out his jihua.

The first phase of the Hong Kong shipyard project does not have a full set of parts supporting enterprises, except for a wood processing plant is a major support, all kinds of metal parts, cables, canvas, putty, grease, paint all rely on Lingao supply. Shi Jiantao's abacus is: Gradually expand the proportion of parts and components in Guangdong: raw materials that are not difficult to process or do not require much processing are first purchased locally from Guangdong -- for example, putty for filling, which is nothing more than lime, hemp silk, and tung oil, can be outsourced and manufactured in Guangdong. The spare parts start with the wooden structural parts of the harmony wheel, and let the local shipbuilding workshops in Guangdong match them.

But this is not an easy task. Shi Jiantao visited several shipbuilding workshops near Huangpu, and after seeing the crude tools and components, his heart almost sank to the bottom.

But after carefully observing their construction process, Shi Jiantao felt that although the work of the shipbuilders was very rough and there were no drawings, they built the ships completely according to a certain pattern. There are several standard ship types that are followed by the ships that are built.

Obviously, the patterned manufacture of ships is not an alien jishu for them, but has been around for a long time. It shouldn't be difficult for them to mass-produce the same part. Judging from the common indigenous ship types along the coast of Guangdong collected by the Foreign Intelligence Bureau, there are seven or eight types of ships larger than 100 tons. The hull structure is almost identical between the same models.

But then he was poured cold water on the following observations: the various ship parts made by the shipbuilders had frighteningly large tolerances - or rather, no concept of tolerances in their eyes.

Of course, with the roughness of the tools they used, without any concrete numerical notions of size - it was all in their minds - it was impossible to mass-produce parts within the tolerances.