In order to explore the mysterious and beautiful underwater world, people have created many devices, tried to make them have faster speed, and tried to conquer the underwater world with speed. What are the fastest underwater artifacts? Let’s have a look.
Underwater robot like octopus
Underwater speed: 11.7 km / h
This underwater robot is called “octopus robot”. It has no moving parts and energy storage devices, only a 3D printed skeleton and an elastic film on the outer layer. It can swim as fast as an octopus by spraying water, but it can not be controlled remotely at present.
The researchers said that this Octopus robot may be applied in the development of artificial underwater vehicles. After its functions are improved in the future, it is expected to be used to track and observe dolphins.
Underwater “electric vehicle”
Underwater speed: 20 km / h
Seabob is considered to be the fastest underwater scooter, invented by German engineers. Its diving depth can reach 40 meters, and its underwater speed can reach up to 20 km / h, which is equivalent to the speed of electric vehicles driving on the ground.
You just need to hold its handle with both hands and press the button to shuttle freely in the water like a fish.
High configuration private convertible submarine
Underwater speed: 20.4 km / h
A Dutch company has launched a personal electric submarine, which is considered to be the fastest personal submarine in the world.
It can carry 2 ~ 3 people at the same time. Because it is a “convertible” submersible, divers need to wear diving equipment when diving. The submarine is also equipped with advanced equipment such as navigation system and breathing device. It can dive to a depth of 94 meters in a few seconds and its speed can reach 20.4 km / h.
When not diving, it can also be used as a ship. When sliding freely on the water, it is as fast and stable as a vehicle on the ground, and can also park at any time as a car.
Now this personal submarine is mainly used by special forces, marine biologists and underwater archaeologists.
A bloody nuclear submarine
Underwater speed: 82.78 km / h
Nuclear submarine is a submarine powered by nuclear reaction, which can perform military tasks in water for a long time.
The fastest nuclear submarine is the type 661 nuclear submarine built by the Soviet Union in 1970. During the sea test in 1971, the American aircraft carrier tracked by it could not get rid of it. In the process of its return, it set an underwater speed of 82.78 km / h, which has not been broken so far.
But also because the speed is too fast, its noise is very loud, so its concealment is poor. It was decommissioned in 1988 and dismantled in 2010.
Supercavitating torpedo
Underwater speed: 370km / h
Torpedo is an important weapon loaded by submarine. It can navigate and control independently under the water and attack the targets in the water accurately.
The resistance of water is large. It is very difficult for a weapon to attack quickly underwater. In the 1970s, the “blizzard” supercavitation torpedo developed by the Soviet Union had a speed of 370 km / h, comparable to high-speed rail, and became the fastest torpedo in the world.
The secret of high speed is its supercavitation launcher installed on the head, which can form a large steam bubble to wrap the torpedo. Because the resistance of gas is much less than that of water, it can make the torpedo obtain a higher speed like driving on land. In addition, it can carry nuclear warheads, and a supercavitating torpedo can basically sink an aircraft carrier.
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