Compared to the Artificial Whale's swimming speed in the sea water, the Submarines' ascent was painfully slow. By the time the Submarines were still far from the sea surface, the Artificial Whale had already entered the optimal attack range. Then, the torpedo launch tubes on the Artificial Whale were opened once again, and a large number of torpedoes were launched once more.
Yan Fei had just used the Dolphin torpedoes to attack the Submarines on the seabed, which was, in fact, the first combat use of the Dolphin torpedoes. Having gained experience from their first combat deployment, Yan Fei had a full understanding of the performance of the Dolphin torpedoes. Thus, this time, he launched only ten Dolphin torpedoes in total. Relying on the intelligent targeting of the Dolphin torpedoes, ten torpedoes were sufficient to annihilate five Submarines of the United Fleet.
