A ceremony was held at Cam Ranh port in southern Vietnamese province of Khanh Hoa on Wednesday to induct its first Russian-made Kilo class submarine, the HQ 182- Hanoi, into service.
The newly-named submarine is the first of six diesel-powered Kilo-636 Varshavyanka attacking models that Vietnam bought from Russia to enhance its navy's capacity.
According to Vietnam's state-run news agency VNA, Captain Nguyen Van Quan said the sailors will work very hard to make effective use of this modern submarine.
Having a displacement of 3,000-3,950 tonnes, the 73.8-meter- long submarine can operate at a maximum depth of 300 metres and at a range of 6,000-7,500 nautical miles for 45 days and nights with 52 crewmembers, said the VNA.
"It has the quietest engine in the world and is the best choice for reconnaissance and patrols," VNA said.