Teamwork to Achieve Success
As implemented by the U.S. Navy, they saw a lot of success. With the teamwork, the three boats managed to sink over 38,000 tons of Japanese shipping, as well as an additional 3.300 tons. By November 10, 1943, the three boats were back at Midway Atoll as their torpedoes had finished. At the end of this mission, Commander Moore was the second officer to win a Navy Cross off the works of Grayback.
Torpedoes Finished in Just Five Days
Grayback commissioned another sail to the East China Sea on December 2, 1943. The ninth patrol saw the Grayback firing all her torpedoes across a five-day period where four Japanese warships were destroyed. She had to return to Pearl Harbor, and by then, Moore had received another Navy Cross. It seemed like this submarine had become the unstoppable nemesis of the Japanese, with not even its best submarines and most talented crews providing much of a combined challenge.