Bulb: what is an element and why does a ship need it

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Bulb: what is an element and why does a ship need it
Bulb: what is an element and why does a ship need it
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One of the main characteristics of a sea vessel is maneuverability, speed, fuel economy and, as a result, financial resources, the absence of problems with the transportation of goods. Accordingly, the design of the ship must be carefully thought out, meeting all the requirements and capable of fulfilling the tasks assigned to it one hundred percent.

1. Bulb - an unusual ship element

Bulb - a teardrop-shaped element located at the level of the waterline
Bulb - a teardrop-shaped element located at the level of the waterline

Bulb is a teardrop-shaped element located at the level of the waterline. Those who were lucky enough to see him even during the construction of the ship are often interested in why he is needed and whether it is possible to do without him. In fact, for the ship, this part is important if it is necessary that it moves quickly and does not consume too much fuel.

Bulb cuts the waves, thereby increasing the speed of the ship
Bulb cuts the waves, thereby increasing the speed of the ship

The fact that the speed of the ship increases significantly in the presence of a special fairing, which takes on the main load in terms of cutting the waves, was understood by the ancient Roman and ancient Greek navigators. Thanks to this, efficiency increases, less energy is expended and the result is much better.

There is something similar on other types of transport, only there is not cut water, but air, but the essence is the same.

Bulb is present not only on the vessel in the form of a bulge on its bow. It is a significant element in the design of trusses, beams, columns, allowing optimal load distribution.

2. When the bulb became a must on ships

David Taylor, a US engineer, added a modern bulb-like detail to the battleship Delaware
David Taylor, a US engineer, added a modern bulb-like detail to the battleship Delaware

This element is not all-metal. Although it is made of thick sheet iron, which does not deform and can withstand a huge load, it is hollow inside. For almost a century, engineers of the last century have been trying to solve the issue of fuel economy. David Taylor, a US engineer, added one piece to the battleship called the Delaware.

This invention made it possible to increase the speed of the vessel by 15-20 percent, and its maneuverability indicators were improved. All tests carried out at that time showed a positive result. Interestingly, the invention began to be massively introduced only at the end of the twentieth century, after the emergence and development of high technologies.

For cruise liners, this innovation has become especially useful, since earlier they did not differ in speed
For cruise liners, this innovation has become especially useful, since earlier they did not differ in speed

For cruise liners, this innovation has become especially useful, since earlier they did not differ in speed. Bulb gave them more speed. At that time, her threshold reached thirty knots, and this was a huge achievement. The Japanese also installed this design on their cruisers. Among other things, the bulb makes ships more stable, especially during a storm.

Continuing the topic, read about 9 curious facts about the "Titanic", which are rarely mentioned.

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