sailboat
Around 2900 BC, Egyptians first used sailboats. From then on, until the18th century, sailing has always occupied a dominant position in ocean transportation. At that time, many sailboats were propelled by a mast and a sail. About 500 years ago, many sailboats with 3-4 masts began to appear. This kind of sailing boat has a strong hull and is not afraid of wind and waves. Today, large ships with engines are widely used, and small sailboats are still used for sports competitions, fishing and local trade.
freighter
A ship carrying goods is called a cargo ship. Cargo ships have been sailing on the ocean for thousands of years, which enables people to trade between different parts of the world. Today, a large number of different types of cargo ships sail on the sea, from large oil tankers to small tugboats, from ferries carrying cars to ships dedicated to searching for damaged ships. Cargo ships rarely have superstructures (parts above the main deck). There is a pilot bridge with a chimney on board. There are engines and living quarters under the bridge. The rest of the ship can hold as much cargo as possible.
hovercraft
The hovercraft has an inflatable air cushion, which can make the hull surface to sail. Due to the reduction of water resistance, the sailing speed is very fast. Hovercraft is not just floating on water, but supported by air cushion, and can travel on water, swamp or land. The hovercraft has a huge fan to form an air cushion. This air cushion is surrounded by a rubber ring called apron around the hull.
Tin boat
Tin boat is a unique boat in the Yangtze River valley of China, which is unique to China. The outside is covered with tin and the inside is made of wood. It was often used during the Three Kingdoms period, lasting 1000 years.
many
The first modern inflatable boat was used in the French navy, and the development model of Zodiac triggered the rapid development of civil and military inflatable boat industry. Accordingly,
Pierre Debroutelle designed the first U-shaped inflatable boat in 1937, and he applied for a patent for this design in August 10. This is also the most direct version of the sports and entertainment inflatable boat until today!
Since then, many new manufacturers, models and designs have been introduced to the market. Inflatable boats are no longer small rubber boats behind big yachts! It can reach 45 feet long, or even longer! "Rigid" FRP hull and aluminum hull have gradually replaced the original inflatable bottom! Luxury and beautiful decorative parts, even boathouses, also appear on rubber boats. Corresponding to its name, today, inflatable boats often only mean that the pontoon of the boat is inflatable, and the bottom of the boat may be made of FRP and aluminum. However, inflatable boats have always existed and become more and more popular!
There are many types and models of rubber boats, such as high-speed boats dedicated to speed, completely manual kayaking, drifting boats that experience the thrill of rapids, simple-looking work stands, fishing boats fishing in the offshore area and so on.
Widely used in water entertainment, leisure entertainment, fishing, fishing and other water operations.
Fishing boat, noahyacht fishing
At present, the material used to make gas cylinders of inflatable boats in China is generally PVC material.
Performance and advantages of inflatable products: 1, all of which are made of imported special air boat fabric of 0.9T 1000D/PVC or 1.2mm PVC, with excellent air tightness and wear resistance and long service life.
2. Imported air valve is adopted, which is convenient, safe and reliable.
3. All bonding parts are bonded by imported glue, and the peeling strength, high temperature resistance, hydrolysis resistance and ultraviolet resistance are much better than those of domestic glue. Even in the sun, the firmness of the airship connection parts is fully guaranteed.
4. Imported materials have high color fastness, and the fabric color is as good as new. Imported special wear-resistant two-color fenders make the hull durable.
Suspended hull airbag
Made of adhesive and high-frequency heat sealing technology, it has good air tightness, high strength, durability, first-class quality, speed of 40-60 km/h, and can be stored for at least one week after inflation.
phylogeny
China is one of the first countries in the world to make canoes and use canoes and paddles to cross the sea. A canoe is the simplest boat. The log is hollowed out and people sit on it. It evolved from a raft. Although this evolution process is extremely slow, it has taken an important step in the history of ship technology development. Canoes need more advanced production tools and are manufactured according to certain technological processes. Manufacturing technology is much more difficult than raft, and its own technology is much more advanced than raft. It already has a prototype of a ship.
In China, there were wooden boats with cabins in Shang Dynasty, and the shipbuilding technology in Han Dynasty was more advanced. Besides paddles, there are anchors and rudders on board.
In the Tang Dynasty, Colliers invented the use of wheels instead of paddles and paddles, and paddles.
Compasses were widely used on ships in the Song Dynasty, with watertight compartments to avoid sinking on rocks. There are also large ships with masts 10 and sails 10. /kloc-In the 5th century, China's sailboats have become the largest, strongest and most seaworthy ships in the world. The progress of ancient navigation and shipbuilding technology in China is in a leading position in the world.
/kloc-in the 0/8th century, steamships appeared in Europe. /kloc-at the beginning of the 0/9 th century, iron ships appeared in Europe. /kloc-in the middle of the 0/9th century, ships began to develop towards large-scale and modernization.