- Class: Campania - 1 seaplane carrier of 1914
- Displacement: 18,000 tons
- Dimensions: 622 x 65 ft.
- Machinery: Steam 10-cylinder, triple-expansion reciprocating engines,
twin screw 28,000 h.p. = 22 knots
- Armament: 6-4.7 in. (6x1), 1-3 in. A.A. guns; 10 aircraft
- Complement: 600
- Builder: Fairfield Co., Ltd., Glasgow, Scotland, 1893
- Service: Built for Cunard Line's Liverpool-New York service,
Campania was holder of the Blue Riband 1893-94, losing to her sister ship, Lucania. Collision with barque Embleton 21 July 1900 sank the latter with loss of 11 lives. In 1904, a rogue wave swept five steerage passengers overboard, the first time in history the Cunard Line lost passengers through an accident. On 14 April 1914 she made her 250th crossing. Taken over by Royal Navy during World War I and converted to aircraft carrier, becoming first Royal Navy vessel to launch aircraft whilst underway. In 1916 her fore funnel was divided to allow a longer flying-off deck. Missed Battle of Jutland because of engine trouble. Dragged anchor in the Firth of Forth, 5 November 1918, and collided with battleship
Revenge, sinking in two hours.