Dutch submarine is the originator of modern submarine. The 45-horsepower gasoline engine can make the submarine sail 65,438+0,000 nautical miles on the water at a speed of 7 knots, while the electric motor can make the submarine dive 50 nautical miles at a speed of 5 knots. The submarine is equipped with 1 torpedo tube, three torpedoes and 1 cannon at the head and tail. Therefore, the Netherlands won the title of "the father of modern submarines". Holland also presided over the development of the world's first double-hull submarine, and completed the voyage from Noffke to new york, creating the first record of submarine sailing on the high seas.