 The forward hold, underneath the flight deck, could fit four small seaplanes, but the flight deck had to be lifted off the hold to access the airplanes.HMS "Campania" was commissioned on 17 April 1915.The first takeoff from the flight deck did not occur until 6 August 1915 when a Sopwith Schneider floatplane, mounted on a wheeled trolley, used of the flight deck while the ship was steaming into the wind at .