Why does a giant oil tanker only have one propeller?
To make such a huge object move, it needs matching power, just as we see that a huge truck generally has 2-4 wheels more than a truck with a smaller tonnage, not only for the balance of the body , Is to increase the driving force of the car and reduce the energy consumption of the car.
Then the length of the giant oil tanker we see is almost hundreds of meters long, and the displacement can reach hundreds of thousands of tons or more. An extradition vessel used to cross the river needs a propeller. When the tonnage differs by several dozen times, it is a small Are the propellers really enough to support the operation of such a huge tanker?
In fact, the so-called small propellers we see are only visible to our naked eyes. That is because half of the propeller is buried in the water, and the exposed half of the body is compared with the huge ship. In fact, This "tiny" propeller is much larger than you think.
In fact, this propeller is close to ten meters or so, which is almost two or three stories high as the house we live in. Secondly, the construction of this giant propeller is very difficult. Officially, the size of this propeller is too large. The blades will not cause compression and deformation during the underwater operation. Once deformed, the ship will lose power. This will cause huge property losses to cargo ships or oil tankers carrying goods. Therefore, regardless of alloy materials, castings, blades and propellers The splicing process of the main body is a huge challenge.
