Nummer: 27821
| Area : | Pacific Ocean |
| Sea area : | Central Pacific |
| Date of attack : | 29.01.1942 |
| Time of attack : | abds |
| Nationality of U-boat : | Japanese |
| U-boat : | I-171 |
| Commander : | Kawasaki |
| Grid : | W Maui |
| presumed target type : | Steam Freighter |
| presumed result : | sunk |
| Used weapon(s) : | Torpedo(es) + Gunfire |
| Convoy : | unknown |
| Date of observation : | 29.01.1941 |
| Time of observation : | abds |
| Nationality of target : | American |
| Actual type of target : | Transport Cargo |
| Name of target : | General Royal T. Frank |
| Year of launch : | 1919 |
| Actual tonnage : | 622 BRT |
| Actual result : | sunk |
| Position of target : | 20.34n 155.43w |
| Footnote : | "General Royal T Frank" was actually an army minelayer serving as inter island freighter, en route from Kahuliu (Maui) to Hilo (Hawaii) with tug "Kalae" towing a barge, and escorted by a flush deck destroyer. |
| Convoy : | unknown |
| updated on: | 00.00.0000 |
| Remark: | 15370 |
| Changes: | 1) Zimmerman, 12.1997: A-AK, 632grt, Positionsangabe. 2) Angriff aus ungeklärter Ursache auf 8.12.41 (I-172) gerückt 3) sensuikan: Angriff zurück auf 29.01.42 durch I-171 4) sensuikan: General Royal T Frank (622grt) 5) sensuikan: 3-ship convoi from Kahuliu (Maui) to Hilo (Hawaii) Frank and Kalae with barge in tow - Escort by flush deck destroyer |