5-tii Abriil 1944 markabka Hyperion wuxuu ka dhoofiyay jasiiradaha Solomon isagoo wata 45 rakaab ah marka lagu daro xamuulkiisa caadiga ah ee saliida iyo sahayda. 10kii Abriil 1944 wuxuu yimid jasiiradda Emirau ee Bismarck, oo ay qabsadeen saddex toddobaad ka hor
"Hyperion" waxay xamuulkeeda dayuuradaha ka dejisay maalintii waxayna habeenkii si nabad ah ugu baxday. Kadib waxay dib ugu laabatay shaqadeedii qiimaha badnayd ee meelaha ay ku kala wareegaysay, iyadoo ka shaqaynaysay inta udhaxeysa New Caledonia, Guadalcanal, New Zealand, iyo Bismarcks.