Vietnamese businessman to test his mini-submarine in a lake
At the latest test in a tank in the afternoon of March 7, the homemade submarine named Truong Sa (Spratly) of an entrepreneur in Thai Binh province could still dive and resurface well in the presence of many people.
"This was the 6th successful test in the cement tank. Next time I will test the submarine in a wide lake," said entrepreneur Nguyen Quoc Hoa, who built the ship.
The trial took place in the presence of many people and representatives of the Department of Science and Technology of Thai Binh province and the Naval Engineering Institute of Hai Phong.
A witness said: "It's great! Previously I still doubted but I now believe that the ship can dive and resurface," he said.
The test took place from 1pm to 3.30pm in a cement tank of 4.5 m deep, 10 m long and 3.7 m wide.
Hoa said initially he "performed" by controlling the submarine to dive and then resurface and continue to dive and resurface until the end of the test.
Since the Lunar New Year, Hoa and his colleagues fixed some technical and aesthetic disadvantages of the ship.
Some parameters were also reduced to ensure safety, such as having the submarine run for nearly 100 km, reducing the speed to 10 nautical miles/hour, which makes the dive time about 3 to 5 hours only.
The mini-submarine was test in a cement tank
|
A witness said: "It's great! Previously I still doubted but I now believe that the ship can dive and resurface," he said.
The test took place from 1pm to 3.30pm in a cement tank of 4.5 m deep, 10 m long and 3.7 m wide.
Hoa said initially he "performed" by controlling the submarine to dive and then resurface and continue to dive and resurface until the end of the test.
Since the Lunar New Year, Hoa and his colleagues fixed some technical and aesthetic disadvantages of the ship.
Some parameters were also reduced to ensure safety, such as having the submarine run for nearly 100 km, reducing the speed to 10 nautical miles/hour, which makes the dive time about 3 to 5 hours only.
11:37, 2025/02/23
Government-backed waste management startups to be launched
By 2030, each province will have at least five models of senior-led waste collection and sorting.
15:59, 2025/02/16
Hanoi makes remarkable leap in the DTI ranking
Hanoi has been rolling out initiatives to accelerate digital transformation.
22:13, 2025/02/12
Hanoi develops e-commerce database
The database allows for identifying which tax collector supervises each taxpayer.
18:35, 2025/02/09
Hanoi to pilot multiple digital transformation models
Hanoi will step up efforts to build a modern, proactive administrative structure, and improve the legal system.
21:17, 2025/01/13
Government to set aside 3% budget for sci-tech development: Party Chief
Policies to remove barriers to scientific and technological development and maximize creativity must be finalized by 2025.
16:50, 2025/01/09
Hanoi aims to maintain its second-highest EBI ranking
Hanoi laid out a goal to expand consumer market through e-commerce channels and promote cross-border transactions to help businesses export.
- Hanoi honors outstanding faces in innovation, digital transformation
- Land deed digitization accelerated in Hanoi
- Vietnam's capital boosts iHanoi usage by citizens
- Technology, innovation identified as key drivers for Hanoi's growth
- Hanoi intensifies efforts to achieve its digital goals by 2025
- Second Hanoi Technical Innovation Contest launched