Submarine Operations Research Group Attack Data

USS Robalo (SS-273)

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
1944-02-13  17  Fremantle  1330N  12113E  Daylight  Periscope  Submerged  Daylight  Periscope  Submerged  Mark XIV Type 3A Torpedo  AK  Damaged  6200 
1944-05-03  09  Fremantle  1158N  10916E  Daylight  Periscope  Submerged  Daylight  Periscope  Submerged  Mark XIV Type 3A Torpedo  AK  No Damage  4000 
1944-05-08  15  Fremantle  1343N  11416E  Daylight  Periscope  Submerged  Daylight  Periscope  Submerged  Mark XIV Type 3A Torpedo  SS  No Damage  1900 
1944-05-17  00  Fremantle  1113N  11538E  Night  Radar  Surfaced  Night  Radar  Surfaced  Mark XIV Type 3A Torpedo  AO  Sunk  7500 
1944-05-17  02  Fremantle  1125N  11536E  Night  Radar  Surfaced  Night  Radar  Surfaced  Mark XVIII Electric Torpedo  DD  No Damage  1500 


   

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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