Nummer: 28801a
| Area : | Pacific Ocean |
| Sea area : | Southeast Asia |
| Date of attack : | 12.01.1945 |
| Nationality of U-boat : | Japanese |
| U-boat : | I-47 |
| Commander : | Orita / Kawakubo |
| Grid : | Hollandia |
| presumed target type : | Transport Cargo [?] |
| presumed result : | sunk |
| Used weapon(s) : | "kaiten" = Human Torpedo |
| Date of observation : | 12.01.1945 |
| Time of observation : | 05:11 |
| Nationality of target : | American |
| Actual type of target : | Steam Freighter |
| Name of target : | Pontus H. Ross |
| Year of launch : | 1944 |
| Actual tonnage : | 7247 BRT |
| Actual result : | damaged |
| Position of target : | 02.33s 140.46e |
| Footnote : | I-47 launched 4 kaitens, piloted by Lt(jg) Kawakubo, CPO Muramatsu, PO2C Sato and Lt(jg) Hara. Three kaitens detonated near "Pontus H. Ross", which was damaged twice. I-47 was credited with 4 successes. |
| related attacks : | Angriff 1 Angriff 2 Angriff 3 |
| updated on: | 00.00.0000 |
| Remark: | Kawakubo (Teruo) |
| Changes: | 1) A-TIME: 04h14 - 04h30 1) sensuikan: CO, B-TIME, damaged 2) sensuikan: T-POSITION 2.33s (verified) |