Submarine Operations Research Group Attack Data

USS Flounder (SS-251)

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
1944-04-12  00  Fremantle  0052N  12916E  Night  Radar  Surfaced  Night  Radar  Surfaced  Mark XIV Type 3A Torpedo  AK  Not Final Attack on Target  4000 
1944-04-12  02  Fremantle  0052N  12916E  Night  Radar  Surfaced  Night  Radar  Surfaced  Mark XIV Type 3A Torpedo  AK  No Damage  4000 
1944-06-17  13  Brisbane  0658N  12752E        Daylight  Periscope  Submerged  Mark XIV Type 3A Torpedo  APK  Sunk  4000 
1944-08-18  12  Brisbane  0543N  12544E        Daylight  Periscope  Submerged  Mark XXIII Torpedo  PGE  No Damage  1600 
1944-11-10  08  Fremantle  0713S  11517E        Daylight  Periscope  Submerged  Mark XVIII Electric Torpedo  UB  Sunk  700 
1944-11-21  18  Fremantle  1039N  11505E        Twilight  Periscope  Submerged  Mark XXIII Torpedo  AK  Damaged  5000 
1945-02-22  03  Fremantle  1251N  10931E  Night  Radar  Surfaced  Night  Radar  Surfaced  Mark XIV Type 3A Torpedo  SAM  No Damage  100 


   

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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McFarland & Company
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