An item reported that the testing of the 30,5cm guns on board of the French battleship Courbet were very satisfying. The tests were ended with a salvo of all 5 gun turrets without causing significant damage. A second item reported that the forward 30,5cm gun turret was used for quick firing tests during 10 salvos. According to the magazine le Yacht dated 4 October were the guns loaded within 18 seconds.(1)
1. Of the Courbet-class consisting of the Courbet, Jean Bart, Paris and France preceded by the Danton-class and succeeded by the Bretagne-class. Laid down by Arsenal de Brest, France on 1 September 1910, launched on 3 March 1911, completed on 19 November 1913 and scuttled as breakwater during the Normandy landings on 9 June 1944. After the Second World War en situ broken up.