USS Tambor (SS-198) - Tenth Patrol

Tenth Patrol

After refit at Pearl Harbor, Tambor put to sea on 9 April en route to the Mariana Islands. On 18 April, she attacked a 250-ton trawler loaded with food and fresh vegetables. A boarding party from the submarine killed seven members of the Japanese vessel's crew and captured the second officer. The Americans removed the ship's papers and left her afire and sinking. {This was the gunboat "Shinku Maru No. 3"} On 10 May, she contacted an eight-ship convoy, escorted by five destroyers and two destroyer escorts. In a submerged attack, Tambor fired four torpedoes at a cargo ship and heard two explosions, then went deep, taking 50 depth charges from the escorts. Tambor surfaced later and attempted to close the convoy once more. However, a destroyer picked her up and subjected her to another depth charge attack.{The sunk ship was the "Keiyo Maru"} On 26 May she scored two hits which sank Chigo Maru (650 tons). Tambor's tenth patrol ended at Midway on 2 June.