Tsushima Maru Sinking
Off the coast of Akusekijima
Not until more than twenty years after the end of the war did the crew of Bowfin learn that the unmarked, unlighted passenger-cargo vessel, Tsushima Maru, which Bowfin sank off the coast of Akusekijima on 22 August 1944, was loaded with 826 children. They, along with some of their school teachers and a few of their parents, were being transported from Okinawa to the mainland of Japan to escape the anticipated invasion of the Ryukyu Islands. Of those children, 767 were lost; only 59 were saved.
Gyoukuu (source is unsure of transliteration) Maru. (Further information presently unavailable, although the ship may possibly be the 6,854 ton cargo vessel Gyoku Maru, which was sunk by USS Thresher (SS-200), at 35-05N, 124-24E on 18 September 1944.)
IJNS Uji (gunboat); Survived the war; surrendered August 1945 and transferred to China as Chang Chi; taken over by Communists in 1949 and re-armed by 1955. (from: Warships of the Imperial Japanese Navy, 1869-1945, pp. 118-119.)
After the War
Discovery of the Wreck
Following is a translation of a Waka Poem by His Majesty the Emperor of Japan, for his Year-end Presentation in 1997 (Ninth Year of Heisei):
Hoyt, Edwin P., Bowfin, Van Nostrand Reinhold Company, New York, 1983 (pages 144-150)
Shinzato Seitoku, Ah, Gakudo Sokai Sen Tsushima Maru (Ah, School Child Evacuation Ship Tsushima Maru), Tsushima Maru Victim Bereaved Family Association, Naha, Okinawa, 1978 (in Japanese).
From Sea Technology: Tsuchiya, Toshio, "Acoustic Instruments in Deep Water Search for a Sunken Ship," Japan Marine Science & Technology Center (JAMSTEC), Tokyo, Japan
Secrets of the Sub
|How Does A Sub Stay So Quiet|
How do submarines stay so quiet?
Submarines are the ultimate “stealth weapon. Remaining underwater to attack or use its sensors, quietness is critical. Through design, modern nuclear submarines have equipment mounted on special mounts to isolate the noise from the outside and reduce the noise signature of the sub in the ocean. Rotating equipment is checked from the design through operation so it is always quiet and it is immediately repaired if it is not operating quietly. The sub checks itself with its own acoustic sensors and establishes the most quiet lineup of equipment for normal or critical operations. Overall, the reason the submarine is so quiet is because every member of the crew knows how important it is to remain quiet and undetected ensuring the submarine can perform all of its mission.