Her aircraft participated in the Cuxhaven Raid on Christmas Day 1914. At the Battle of Jutland in 1916, one of her seaplanes, piloted by Lieutenant Frederick S. Rutland with Assistant Paymaster G.S. Trewin as observer carried out an aerial reconnaissance of the German fleet. This was the first time that a heavier-than-air aircraft had carried out a reconnaissance of an enemy fleet in action. Later in the battle she rescued the crew of the crippled HMS Warrior before taking her in tow. Later in the war she served in the Mediterranean.
She was sold back to her original owners, the South Eastern and Chatham Railway Company in December 1919 and sunk by a mine with heavy loss of life in Manila Bay in December 1941 having been renamed Corregidor in 1933.