 New Jersey , then the world 's only active battleship , departed Philadelphia 16 May , calling at Norfolk and transiting the Panama Canal 4 June before arriving at her new home port of Long Beach , California , 11 June . Further training off Southern California followed . On 24 July New Jersey received 16 inch shells and powder tanks from Mount Katmai by conventional highline transfer and by helicopter lift , the first time heavy battleship ammunition had been transferred by helicopter at sea ( now known as vertical replenishment ) . 
