▁the ▁con voy ▁commander ▁in ▁the ▁transport ▁, ▁the ▁C 1 – B ▁tro op ship ▁Cape ▁Cle are , ▁G ulf ▁Car ib bean , ▁P erman ente , ▁and ▁D ual a , ▁esc orted ▁by ▁the ▁fr ig ate ▁ ▁and ▁the ▁mines we eper ▁. ▁ ▁Japanese ▁sub marine ▁attack ▁PS - 1 6 0 T ' s ▁voyage ▁proceeded ▁without ▁incident ▁until ▁ 1 2 : 3 2 ▁on ▁ 1 3 ▁November ▁ 1 9 4 4 , ▁some ▁ ▁west - s outh west ▁of ▁Los ▁Angeles , ▁Cal if ., ▁Ar d ents ▁son ar ▁picked ▁up ▁a ▁sub marine ▁contact . ▁The ▁mines we eper ▁attacked , ▁firing ▁a ▁ 2 4 - charge ▁“ h edge h og ” ▁pattern , ▁and ▁followed ▁that ▁up ▁with ▁a ▁second ▁pattern ▁at ▁ 1 2 : 4 6 . ▁Rock ford ▁left ▁her ▁esc ort ▁station ▁to ▁assist , ▁and ▁fired ▁her ▁first ▁bar rage ▁of ▁rock ets ▁from ▁her ▁“ h edge h og ” ▁at ▁ 1 3 " 0 8 . ▁Two ▁explos ions ▁followed , ▁before ▁an ▁under water ▁det on ation ▁rock ed ▁the ▁ship . ▁While ▁the ▁ships ▁in ▁company ▁took ▁ev as ive ▁action ▁on ▁signal ▁from ▁the ▁con voy ▁comm odore ▁in ▁U . ▁S . ▁Grant , ▁Ar dent ▁carried ▁out ▁two ▁more ▁attacks ▁and ▁the ▁fr ig ate ▁dropped ▁ 1 3 ▁depth ▁charges . ▁W reck age ▁recovered ▁on ▁the ▁scene — deck ▁pl