Boat buoys floating against storms

It is also a traditional boat of fishermen, but it was added to float as a means of life when the storm hit the offshore. This is the idea of engineer Nguyen Xuan An, Chairman of the Vietnam Gem Society.

Model of float boat

The float-shaped boat is shaped like a normal basketboat, with an extra layer of buoyancy that surrounds the boat. The buoyancy material is styrofoam, which is still used as a heat-insulating material.

The key technology is the valve at the bottom. Boat floats operate like normal boats when the valve is closed. When the boat sinks, the victim must find a way to open the float valve. Then, the thrust of the water on the float causes the water in the boat to escape through the van and the boat will float to become a lifebuoy. Victims buckle the float, slap water out of the boat to continue work or wait for rescue.

According to engineer An's calculations, with a boat float in the outer diameter of 2 meters, the maximum capacity of the float is half a ton, meaning that there must be such a mass as the new compression force that causes the float to flood with the water. . But to ensure that the buoy floats is 20-30 cm above sea level, the boat should only carry a maximum of 4-5 people.

Boat floats have safety belts to withstand the impact of wind storms. One end of the string attached to the boat, one with a hook on the waistband, help people on the boat always keep in touch with the boat. Outside the boat also has a float for the victims.

Mr. An said he had made a model of a float boat with the size of a quarter of a real boat and successfully tested it in a fish tank. According to him, bamboo and rattan can be used to make buoys and fix buoys to the boat's body. The cost of float boats is 20-50% higher than normal rowboats, the area used is reduced because of space for floats.

According to engineer Nguyen Vu Ha, an official of the registry center, the Department of Exploitation and Protection of Aquatic Resources, Ministry of Fisheries, boat buoys of An is a good idea, but to apply, To evaluate the full use.

Vu Ha said that using traditional boat lantern as a lifebuoy is not feasible, because the boat material is bamboo, clinging to rubbing easily. At the same time, the standard for floats should be smooth. To make a boat float on this idea, the boat had to be made of lighter material, with a better buoyancy and smoother surface.

Engineer Ha said that this solution should be reported to leaders of the Department of Exploitation and Protection of aquatic resources to exchange more deeply.