Vietnam’s first domestically made submarine, Truong Sa, which was built by a private company in northern Thai Binh province, has successfully completed its second trial run in a lake.
>> Vietnamese engineer building submarine named Truong Sa
The sub, which was named after Vietnam’s Truong Sa (Spratly) archipelago in the East Sea, was tested in the Tan Binh Lake in Vinh Tra Industrial Park, Thai Binh City, on Friday morning.
Nguyen Quoc Hoa, director of Quoc Hoa Mechanical Company, who designed the sub, steered it on the surface of the lake safely for about two hours, with all parts of the vessel operating properly and smoothly.
As the lake is only 2.5-3 meter deep, the sub could not travel underwater, Hoa said.
In the first test run for the vessel conducted on January 6 in a water reservoir, Truong Sa travelled well both underwater and on the surface, the sub’s designer said.
Truong Sa is about 9 meters long and 3 meters wide, and has a displacement of 12 tons when it is submerged and 9.2 tons when it is on the surface.
Equipped with automatic independent propulsion (AIP) technology and advanced navigation equipment, the vessel is expected to be able to operate for 15 consecutive days at sea, at a speed of 20-25 nautical miles per hour within a radius of 800 km.
It can dive to a depth of 50 meters and stay on the seabed for 15 hours.
Hoa, six other engineers and more than 30 workers began to build the submarine in August 2012, Hoa said, adding that he imported special steel that is 15 mm thick to make the body and the prow of the vessel.
Hoa told Tuoi Tre that he wants to create such a submarine simply to satisfy “his love for the fatherland and his passion for scientific exploration.”
Made-in-Vietnam Truong Sa submarine tested successfully Related image(s)
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