 They sank both ships in combination with the dive bombers from the other carriers.On the morning of 9 April, "Hiryū"s CAP shot down another Catalina attempting to locate the fleet and, later that morning, contributed 18 B5Ns, escorted by 6 Zeros, to the attack on Trincomalee.The fighters engaged 261 Squadron RAF, claiming to have shot down two with two more shared with fighters from the other carriers.