| Displacement | 525t standard, 601t surface, 782t submerged |
|---|---|
| Length | 57.4m pp, 59.4m wl, 60.9m oa |
| Width | 6.0m |
| Draught | 3.51m |
| Machinery | 2-shaft diesel and electoric motor, 1100bhp surface, 760shp submerged |
| Speed | 14.2kt surface, 8kt submerged |
| Armament | 4-53cm TT, 2-25mm AA |
| Complement | 38 |
| Name | Plan | Builder | Laid down | Launch | Complete | ||
|---|---|---|---|---|---|---|---|
| Ro-100 | FY1939 | Kure NYd | 1941. 6.30 | 1941.12. 6 | 1942. 9.23 | SS2 | 1943.11.25 sunk (mined, North strait of Buin) [06.50S, 155.58E] 1944. 2. 5 disc |
| Ro-101 | FY1939 | Kawasaki, Kobe | 1941. 9.30 | 1942. 4.17 | 1942.10.31 | SS2 | 1943. 9.15 sunk (action, S of Solomons) [10.57S, 163.56E] 1943.10.11 missing 1943.12. 1 disc |
| Ro-102 | FY1939 | Kawasaki, Kobe | 1941. 9.30 | 1942. 4.17 | 1942.11.11 | SS2 | 1943. 5.14 sunk (action, off Lavi) [06.55S, 147.34E] 1943. 6. 2 missing 1943. 7.15 disc |
| Ro-103 | FY1939 | Kure NYd | 1941. 6.30 | 1941.12. 6 | 1942.10.21 | SS2 | 1943. 8.10 missing (Solomons area) 1943.11. 1 disc |
| Ro-104 | FY1939 | Kawasaki, Kobe | 1941.11.19 | 1942. 7.11 | 1943. 2.25 | SS2 | 1944. 5.23 sunk (action, off Admiralty Is.) [01.26N, 149.56E] 1944. 6.25 missing 1944. 8.10 disc |
| Ro-105 | FY1939 | Kawasaki, Kobe | 1941.11.19 | 1942. 7.11 | 1943. 3.25 | SS2 | 1944. 5.31 sunk (action, off Admiralty Is.) [08.47N, 149.56E] 1944. 6.25 missing 1944. 8.10 disc |
| Ro-106 | FY1939 | Kure NYd | 1941.12.17 | 1942. 5.30 | 1942.12.26 | SS2 | 1944. 5.22 sunk (action, N of Admiralty Is.) [01.40N, 150.31E] 1944. 6.25 missing 1944. 8.10 disc |
| Ro-107 | FY1939 | Kure NYd | 1941.12.17 | 1942. 5.30 | 1942.12.26 | SS2 | 1943. 7.12 sunk (action, Central Solomons) [08S, 157.19E] 1943. 8. 1 missing 1943. 9. 1 disc |
| Ro-108 | FY1939 | Kawasaki, Kobe | 1942. 4.20 | 1942.10.26 | 1943. 4.20 | SS2 | 1944. 5.26 sunk (action, off Admiralty Is.) [00.32S, 148.35E] 1944. 6.25 missing 1944. 8.10 disc |
| Ro-109 | FY1941 | Kawasaki, Kobe | 1942. 4.20 | 1942.10.26 | 1943. 4.29 | SS2 | 1945. 4.25 sunk (action, off Okino-Daito I.) [24.15N, 131.16E] 1945. 5. 7 missing 1945. 6.10 disc |
| Ro-110 | FY1941 | Kawasaki, Kobe | 1942. 8.20 | 1943. 1.26 | 1943. 7. 6 | SS2 | 1944. 2.11 sunk (action, Bengal bay) [17.25N, 83.21E] 1944. 3.15 missing 1944. 4.30 disc |
| Ro-111 | FY1941 | Kawasaki, Kobe | 1942. 8.20 | 1943. 1.26 | 1943. 7.19 | SS2 | 1944. 6. 9 sunk (action, N of Kavien) [00.26N, 149.16E] 1944. 7.12 missing 1944. 8.10 disc |
| Ro-112 | FY1941 | Kawasaki, Kobe | 1942. 6.20 | 1943. 3.25 | 1943. 9.14 | SS2 | 1945. 2.11 sunk (torpedoed, Luzon Strait) [18.53N, 121.50E] 1945. 2.20 missing 1945. 5.10 disc |
| Ro-113 | FY1941 | Kawasaki, Kobe | 1942. 7.11 | 1943. 4.24 | 1943.10.12 | SS2 | 1945. 2.12 sunk (torpedoed, Luzon Strait) [19.10N, 121.23E] 1945. 2.20 missing 1945. 5.10 disc |
| Ro-114 | FY1941 | Kawasaki, Kobe | 1942.10.12 | 1943. 6.19 | 1943.11.20 | SS2 | 1944. 6.17 sunk (action, near Saipan) [15.02N, 144.10E] 1944. 7.12 missing 1944. 8.10 disc |
| Ro-115 | FY1941 | Kawasaki, Kobe | 1942.10.12 | 1943. 6.19 | 1943.11.30 | SS2 | 1945. 2. 1 sunk (action, NW of Mindoro I.) [13.20N, 119.20E] 1945. 2.21 missing 1945. 5.10 disc |
| Ro-116 | FY1941 | Kawasaki, Kobe | 1943. 1.16 | 1943. 9.13 | 1944. 1.21 | SS2 | 1944. 5.24 sunk (action, N of Admiralty Is.) [00.53N, 149.14E] 1944. 6.25 missing 1944. 8.10 disc |
| Ro-117 | FY1941 | Kawasaki, Kobe | 1943. 1.16 | 1943. 9.13 | 1944. 1.31 | SS2 | 1944. 6.17 sunk (air attack, NE of Saipan) [11.05N, 150.31E] 1944. 7.12 missing 1944. 8.10 disc |