Due to its use of many advanced quieting technologies, NATO has dubbed it the 'Ocean Black Hole,' with technical specifications that can compete with the conventional submarines of Western navies, and a double hull structure reserve buoyancy that is as high as 32%, which is half more than that of Western single hull structure submarines."
The youngster did indeed not let people down!
Director Feng lit a cigarette and pressed on: "Data, do you know it well?"
"I can't remember the specific parameters, only that the boat captain is more than seventy meters long, more than nine meters in width, over six meters in draft, over two thousand tons in displacement when surfaced, and about three thousand tons in submerged displacement. The sailing speed while surfaced is around ten knots, and when submerged, it's about seventeen knots."
Always on his mind, there must be echoes.
The youngster usually pays attention to learning, and now the knowledge he acquired has finally come in handy.