An item referred to the Standard wich reported that the American rear admiral Twining (1) started with his team to develop a 40cm gun with a length of 20,4 metres for which a new kind of battleship was to be designed. The weight of the shell was to be 900 kilo and the range of the new gun 15 kilometres. At that moment was 35,6cm the heaviest calibre firing a shell of 634 kilo and used for the latest American battleships.
Note
1. Nathan Crook Twining (17 January 1869 Boscobel, Wisconsin, USA-4 July 1924 Nantucket, Massachusetts, USA), dismissed in the rank of rear admiral early 1923 caused by his worse health.
