The best weapon against submarines is, of course, torpedoes.

Mustang-class gunboats, each with triple torpedo launchers on each side, carried a total of six torpedoes, so to sink a submarine, it should not be a big problem.

However, the devil's submarine will definitely fight back and fire torpedoes to attack the Mustang gunboat, so this is also very dangerous, because a torpedo can sink the Mustang gunboat, after all, its tonnage is small, and there is no armor protection

"The System of the Bright Sword" Chapter 150 The Bright Sword on the Sea is in the middle of the hand, please wait a moment,

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