 Jellicoe ordered Marlborough to proceed to the <unk> for temporary repairs . While there , her forward main battery and 6 @-@ inch magazines were emptied to lighten the ship , more pumps were brought aboard and the shoring supporting the damaged bulkhead was reinforced . On the morning of 6 June , the ship left the <unk> for the <unk> , where she would receive permanent repairs , escorted by four destroyers from the Harwich Force . In the course of the battle , Marlborough had fired 162 shells from her main battery , 60 rounds from her secondary guns and five torpedoes . The torpedo hit had killed two men and wounded another two . She was repaired by the Armstrong Whitworth shipyard at <unk> , with the work lasting until 2 August , after which she departed for <unk> , arriving on 5 August . During the repair work , an extra 100 t ( 98 long tons ; 110 short tons ) of armour plating was added to the ship , primarily over the magazines . These alterations were the result of the British experience at Jutland , where three battlecruisers had been destroyed by magazine explosions . 
