The Pacific War Online Encyclopedia
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| Tonnage | 525 tons standar 601 tons surfaced 782 tons submerged |
| Dimensions | 194'4" by 19'8" by 11'6" 59.23m by 5.99m by 3.51m |
| Maximum speed | 14.2 knots surfaced 8 knots submerged |
| Dive | To 245 feet (75 m) |
| Complement | 38 |
| Armament | 4
21" torpedo
tubes (8 torpedoes) 1 3"/40 AA gun |
| Machinery |
2-shaft diesel (1100 shp) or
electric (760 shp) |
| Range | 3500 nautical miles (6500 km) at 12 knots surfaced 60 miles (110 km) at 3 knots submerged |
The Kaigun sho (Kaisho) or KSs were short-ranged (RO) submarines just coming to completion when war broke out. They had partially double hulls of riveted medium steel. They were intended for defense of small island bases.
A patrol line of these boats was rolled up in 1944 in a single brilliant operation by destroyer escort England. What could not be disclosed until decades later was that England was guided to their location by Ultra intelligence.
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Completed 1942-9-23 (Kure) |
Sunk by aircraft
or mine 1943-11-25 off Omai |
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| Sunk 1943-9-15 off San Cristobal Island by Saufley | ||
| Ro-102 | Completed 1942-11-17 (Kawasaki-Kobe) | Sunk 1943-5-14 off Vitiaz Strait (147.5E 6.9S) by PT-150 and PT-152 |
| Ro-103 | Completed 1942-10-21 (Kure) | Missing from 1943-7-28 off Vanganu |
| Ro-104 | Completed 1943-2-25 (Kawasaki-Kobe) | Sunk 1944-5-23 off Kavieng by England |
| Ro-105 | Completed 1943-3-5 (Kawasaki-Kobe) | Sunk 1944-5-31 off Kavieng by England |
| Ro-106 | Completed 1942-12-26 (Kure) | Sunk 1944-5-22 off Kavieng by England |
| Ro-107 | Completed 1942-12-26 (Kure) | Sunk 1943-7-12 off Kolombangara by Taylor |
| Ro-108 | Completed 1943-4-20 (Kawasaki-Kobe) | Sunk 1944-5-26 off Manus by England |
| Ro-109 | Completed 1943-4-30 (Kawasaki-Kobe) | Sunk 1945-5-29 off Okinawa by aircraft from Tulagi |
| Ro-110 | Completed 1943-7-10 (Kawasaki-Kobe) | Sunk 1944-2-11 near 83.3E 17.5N by Jumna, Ipswich, and Launceston |
| Ro-111 | Completed 1943-7-20 (Kawasaki-Kobe) | Sunk 1944-6-10 off Kavieng by Taylor |
| Ro-112 | Completed 1943-9-12 (Kawasaki-Kobe) | Torpedoed 1945-2-11 off Camiguin by Batfish |
| Ro-113 | Completed 1943-10-15 (Kawasaki-Kobe) | Torpedoed 1945-2-11 off Babuyah by Batfish |
| Ro-114 | Completed 1943-11-25 (Kawasaki-Kobe) | Sunk 1944-6-17 off Tinian by Melvin and Wadleigh |
| Ro-115 | Completed 1943-11-25 (Kawasaki-Kobe) | Sunk 1945-2-31 off Manila by Jenkins, O'Bannon, Bell, and Ulvert M. Moore |
| Ro-116 | Completed 1944-1-31 (Kawasaki-Kobe) | Sunk 1944-5-24 off Kavieng by England |
| Ro-117 | Completed 1944-1-31 (Kawasaki-Kobe) | Sunk by aircraft 1944-6-17 off Saipan |
References
Jentschura, Jung, and Mickel (1977)
Materials of IJN (accessed 2009-12-18)
U.S. Naval Technical Mission to Japan (1946-1-11; accessed 2012-2-20)
The Pacific War Online Encyclopedia © 2007, 2009, 2012 by Kent G. Budge. Index
