Submarine Operations Research Group Attack Data

USS S-39 (SS-144)

Patrol Number Date Hour (00-23) Operational Command Latitude Longitude Approach Light Condition Approach Image Method Approach Surfaced or Submerged Attack Light Condition Attack Image Method Attack Surfaced or Submerged Weapon Used Number of Torpedoes Fired Number of Torpedo Hits Claimed Target Type Result Estimated Target Tonnage
1941-12-13    Fremantle  1314N  12421E        Daylight  Periscope  Submerged    AK  Sunk  5000 
1942-01-08  17  Fremantle  09 N  121 E        Daylight  Periscope  Submerged    SS  No Damage   
1942-03-04    Fremantle  0419S  10825E        Daylight  Periscope  Submerged    AO  Sunk  5000 


A complete analysis of the SORG attack data and attacks not in SORG is currently available in the book United States and Allied Submarine Successes in the Pacific and Far East During World War II, 4th ed.

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