Whether China has already caused a thousand tons displacement warships in the Warring States period

No in the Warring States period Technology is not in place

The Tang and Song periods are the second peak period in China's ancient shipbuilding history. The development of China's ancient shipbuilding industry has since entered a period of maturity. The shipbuilding technologies that emerged during the Qin and Han Dynasties, such as the transom rudder, the efficient use of the yawl, a highly efficient propulsion tool, and the effective use of sails, were fully developed and further perfected during this period, and many more advanced shipbuilding technologies were created. The Sui Dynasty was the beginning of this period, and although it was not very long, the shipbuilding industry was well developed, and even extra-large dragon boats were constructed. The large dragon boats of the Sui Dynasty used the method of mortise and tenon joints and iron nails. With iron nails than with wooden nails, bamboo nails joints to be much stronger and more reliable.

By the time of the Tang and Song dynasties, both from the number of ships and from the quality of the ship, reflecting the high degree of development of China's shipbuilding industry at that time. Specifically, the characteristics and changes of the shipbuilding industry in this period are mainly manifested in the following aspects.

First, the hull of the ship continues to increase, the structure is also more reasonable. The larger the boat, the more complex the manufacturing process. Tang Dynasty river boat, more than 20 feet long (about 70 meters), carrying six or seven hundred people has been common. Some of the boat can actually open beds used to plant flowers, planting vegetables, only sailors up to hundreds of people, oars can be imagined. Song Dynasty for the mission to North Korea, built the "Shenzhou", its load capacity of more than 1500 tons. Some of the large sea boat loaded tens of thousands of stones, rudder length of 3 zhang ~ 5 zhang (about 10 meters ~ 17 meters). Tang and Song dynasties built under the hull of the two sides of the cut, by the keel through the head and tail, the ratio of the ship and the bottom of the ship is about 10:1, the bottom of the ship was "V" shape, easy to travel.

Second, the number of shipbuilding is increasing. During the Tang and Song dynasties, shipbuilding workshops increased significantly. Tang Dynasty shipbuilding base mainly in Xuan (Xuancheng, Anhui Province), Run (Zhenjiang, Jiangsu Province), Chang (Changzhou, Jiangsu Province), Su (Suzhou, Jiangsu Province), Lake (Huzhou, Zhejiang Province), Yang (Yangzhou, Zhejiang Province), Hangzhou (Hangzhou, Zhejiang Province), Yue (Shaoxing, Zhejiang Province), Taiwan (Linhai, Zhejiang Province), Wu (Jinhua, Zhejiang Province), Jiang (Jiangxi Province, Jiangxi Jiujiang), Hong (Nanchang, Jiangxi Province), and Dengzhou on the Shandong Peninsula (Yantai, Shandong Province), the south coast of Fujian Province, Fuzhou (Yantai, Shandong) on the Shandong Peninsula, Fuzhou and Quanzhou in Fujian Province and Guangzhou in Guangdong Province on the southern coast. These shipbuilding bases were equipped with shipbuilding workshops, capable of constructing various sizes of riverboats, sea vessels and warships. Emperor Taizong of Tang Dynasty ordered Hong (Nanchang, Jiangxi Province), Rao (Poyang, Jiangxi Province) and Jiang (Jiujiang, Jiangxi Province) to build 400 ships to transport grain when he attacked Goryeo, and ordered Zhang Liang to lead 40,000 soldiers and take 500 warships to take Pyongyang by sea from Laizhou (Yechen, Shandong Province). This shows that the Tang Dynasty has a very strong shipbuilding ability.

By the Song Dynasty, the southeastern provinces have established a large number of official and private shipbuilding workshops. Every year more and more ships built, only Mingzhou (Ningbo, Zhejiang Province), Wenzhou two places on the annual manufacturing of all kinds of ships 600. Jizhou (Jiangxi Ji'an) shipyard also had a record annual output of more than 1,300 ships.

Third, the shipbuilding process is more and more advanced. Tang Dynasty oars have adopted advanced nail joints mortise and tenon joint process, so that the strength of the ship greatly improved. Song Dynasty shipbuilding, ship repair has begun to use the dock, which is 500 years earlier than Europe. Song Dynasty craftsmen could also according to the performance of the ship and the different requirements of the use of the ship, first made a model of the ship, and then based on the drawings of the ship and then carry out the construction. Europe in the 16th century before the emergence of simple ship drawings, three or four hundred years behind China.