A homemade mini-submarine made by an entrepreneur in the northern province of Thai Binh has undergone sea trials.
The submarine named Hoang Sa, after the Paracel Islands, was manufactured by Nguyen Duc Hoa and tested on July 3 under the support and supervision by a panel of the Ministry of Defence.
Nguyen Quoc Hoa is on his mini-submarine named Hoang Sa
Hoa, Director of Mechanical Engineering Company in Thai Binh Province, said that despite bad weather and rough seas, the sub operated well.
He said that the mini-submarine successfully passed a two-day test during which it was put through its paces on the surface, underwater and in a crash situation.
Speaking to DtiNews, Hoa said that he was very happy with his mini-submarine and hoped that his invention could contribute to protect the national sovereignty and serve Vietnamese fishermen.
The sub which has been built back in October 2014 is made of steel. It can run within a radius of 400km. It can operate underwater for 3 consecutive days and nights and can carry two crew.
The entrepreneur also said that he and his co-workers also plan to build another mini-submarine soon which is equipped with more modern equipment.
Some photos of the mini-sub’s trial run: