"This is the h-800 type we designed. As the name suggests, it is an 800-ton ship. It is a pure sailing ship with three masts and Chinese style sails."
Shi Jiantao continued his introduction: h800a removed a mast and turned it into a ketch, with a small boiler installed at the stern to drive the steam winch; h800a1 also canceled the boiler and installed a fire on the front and rear decks. Chalk gun; h-800s is a steam engine sail hybrid...
If divided by function, it can also be divided into different subtypes such as specialized agricultural and mining bulk product ships, liquid transport ships, standard cargo ships and mixed passenger and cargo ships. The modular concept is implemented in the design to make it 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 and put the full series of ship model manuals compiled by the Hong Kong Shipyard into Wu De On the table, each ship type has beautifully drawn line drawings, renderings and technical parameters. This attracted Wu De's attention.
He flipped through the atlas carefully. If he could build a large number of transport ships like dumplings as Shi Jiantao boasted, the planning institute's biggest problem of capacity allocation would be greatly alleviated.
Wude was born as a fisherman and worked as a seaman for many years! Military, know a little bit about things like shipbuilding. He took a look and found that what these types of river crab boats have in common is that they use the same basic line. Many of them also have the same hull cross-section, which facilitates standardized production, just like the A320, A319 and A321 passenger aircraft in this plane are just The length is different and the motivation is slightly different. The hull of the first-generation river crab boat was designed based on a small wooden cargo ship built by Japan at the end of World War II. In the middle of World War II, American submarines went out to the Western Pacific to attack Japanese merchant ships. Facing the threat of U-boats, the British broke their merchant ships into pieces and organized convoys. However, they broke them into pieces, built tens of thousands of wooden transport ships, and spread them to the ocean for the Americans. catch.
Although most of these wooden boats were later smashed into pieces by American Catalina patrol planes and carrier-based aircraft, judging from Lingao's industrial base, they were still practical, craftsmanship, seaworthy, and The damage-resistant models are quite well designed, and the usage environment is from Southeast Asia, China to Japan, and the goods to be transported are also very different.
Of course, the river crab wheel created by Shi Jiantao and others was not entirely a copy of the Japanese design. Considering that there are almost no qualified ports and docks in this time and space, most of the estuaries and bays used as ports have shoals and dark sand. The draft of the ships should not be too deep. At present, the ships they need are mainly for offshore transportation, and the furthest reaches are the Korean Peninsula, Siam, Vietnam, and Japan. The ship adopts a fat, flat-bottomed, shallow-draft type - similar to the "speed boats" used extensively by the Dutch on their routes. While striving for more cargo, the draft should be reduced as much as possible so that the natural port can be used to the maximum extent, so that it can be easily floated in case of stranding.
In terms of power, Shi Jiantao, as "Yi Shipbuilding", knows very well that it is impossible for Hong Kong shipyards to allocate high-end goods such as marine high-horsepower steam engines and fire tube boilers. 〖Japan〗The power I used back then was mainly a "hot ball diesel engine". Lingao currently can neither manufacture a diesel engine nor diesel. Therefore, Shi Jiantao’s choice of power for the river crab wheel is still sail.
Considering that in the future, the river crab wheel will be mainly used for the two operations in Zhejiang and Dengzhou, and also do some coastal trade, so the Chinese sail is still used, which is more efficient in offshore navigation and saves manpower.
However, the "Chinese-style sail" used on the river crab wheel was designed according to the drawings provided by the "Junk Association", an elder society. These designs actually come from the years of experience accumulated by British and American Chinese sail enthusiasts in the 20th century. They combine modern aerodynamics and structural mechanics, use canvas, winches, pulleys, pulley blocks and modern craftsmanship, and undergo simple wind tunnel testing. The reliability, maneuverability and efficiency are higher 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 sailing laboratory in Hong Kong, but he met with clear opposition from the Grand Library, the Ministry of Science and Technology and the Navy: the sailing laboratory must be located in Lingao. According to the resolution of the Senate, any scientific research department related to technological development shall not be located outside Hainan Island.
However, the Lingao Shipyard that Zhou Ke was responsible for had no interest in building a sailing laboratory. Although Zhou Ke is not good at sailing at all, he is full of admiration for European sailing suits and scorns Junke's sailing suits. Naturally, he would not be willing to take the lead in setting up a sailing laboratory. Shi Jiantao looked for people everywhere and found the Ministry of Science and Technology. The Ministry of Science and Technology has a Central Fluid Laboratory in the Gaoshanling area. In their view, the Sail Laboratory is essentially a wind tunnel laboratory.
Finally, based on the test results of the fluid laboratory, Shi Jiantao selected a suitable Chinese-style sail as the sail type of the river crab wheel.
Shi Jiantao took advantage of the opportunity to return to Lingao to sell the Heluo Crab Wheel and perfected the design of the Heluo Crab Wheel and Chinese-style sail rigging and control parts. Shi Jiantao, who had prepared a complete set of drawings and process materials, was very satisfied and had no choice but to ask the Planning Institute for final approval.
Although the river crab wheel implements the guiding ideology of simple structure, its specific design and construction focus on various new technologies promoted by the Cross Time Group in this time and space: iron keel and ribs, power-assisted manual steering wheel, improved Chinese style Sail rigging, hand-cranked winches... and also used "iron-clad wood structural materials" that they had only used in the construction industry in the past. That is to say, some structural materials with large load-bearing capacity, which in the past required larger and harder wood, can be made of multiple pieces of wood after using the "iron-clad wood" structure, or some inferior wood can be used. Iron sheets can provide extremely high tensile strength. This iron-clad wood material was a very commonly used building material and ship material in the United States, Germany, Northern Europe, and Russia in the old times. Ironwood I-beams have also been widely used in the buildings of Lingao Construction Corporation. Once criticized by the "Lingao Times" as "the dregs of the new world", it was not until a group of architects from the construction company broke into the newspaper office, grabbed Ding Ding and gave him a "love science education" that he was corrected.
"How long does it take to build your ship?" Wu De asked after reading the brochure and technical information.
"For the h-800 standard model, if all parts are manufactured, it will take no more than 60 days from assembly to launch and put into use. It will be faster as you become more proficient in the future, and the final assembly time will not be more than 3. Jiantao came back to Lingao this time. Gao Shipyard went to observe the construction process of the 901 project ship, which is said to be put into use in 90 days. According to his thinking, it is not a problem for a standard river crab wheel to be assembled and launched in 60 days.
"So where are you going to produce these parts?" Wu De asked. He knows the production concept of Hedao Crab Wheel: parts are manufactured in branch factories in various places, and they are only assembled in Hong Kong. Saying that construction will be completed in 60 days is probably an ambush.
But in the United States in the 20th century, it was possible to do this-Americans had the largest and most complete industrial system at the time. Although Lingao in this time and space has the largest and most complete industrial system in the world, it is simply impossible to provide such a large production capacity.
At present, the production tasks of various factories in Lingao are already at full capacity, especially the wood processing factory, the main raw material supplier for wooden ship building. Their ship material production lines are already producing in 24-hour shifts, and it is unlikely that they will be able to produce any more. Providing raw materials to Hong Kong shipyards. Obviously Shi Jiantao can only rely on Hong Kong's own wood processing plants. But this factory is very weak in terms of production capacity and technical level.
"I'm going to use local production capacity in Guangdong." Shi Jiantao finally laid out his plan.
The first phase of the Hong Kong Shipyard project does not have a full set of parts and components supporting companies. Except for a wood processing plant, which is considered a major supporting component, all kinds of metal parts, cables, canvas, putty, grease, and paint must be supplied by Lingao. Shi Jiantao's plan is to gradually expand the supply ratio of local parts in Guangdong: raw materials that are not difficult to process or require little processing will be purchased locally in Guangdong - such as putty for filling, which is nothing more than lime, flax, and tung oil. Manufacturing can be outsourced in Guangdong. The spare parts start from the wooden structural parts of the Harmony Wheel and are matched by local shipbuilding workshops in Guangdong.
But this is not an easy task. Shi Jiantao visited several shipbuilding workshops near Huangpu. After seeing the rough tools and components, his heart almost sank to the bottom.
But after carefully observing their construction process, Shi Jiantao realized that although the shipbuilders' work was very rough and there were no drawings, they built the ships strictly and according to a certain pattern. Several standard ship types to which ships are built.
Apparently, pattern-making of ships was not an alien technology to them, but something that already existed. It shouldn’t be difficult for them to mass-produce the same kind of parts on a large scale. According to the "Common Aboriginal Ship Types Along the Guangdong Coast" collected and compiled by the Foreign Intelligence Service, there are seven or eight types of ships larger than 100 tons. The hull structure is almost identical between the same models.
But after further in-depth observation, he was poured cold water on him: the tolerances of various ship parts manufactured by shipbuilders were frighteningly large - or rather, there was no concept of tolerances in their eyes.
Of course, given the roughness of the tools they use and the concept of dimensions without specific numbers - all in their heads - it is impossible to mass-produce parts within the allowable tolerances. @.
