More likely, because it took torpedoes to finish both Bismarck and Scharnhorst (and factions in the RN had always been reluctant to remove torpedoes from the existing battleships).The torpedoes are a mystery, my friend who scanned the many Admirality papers regarding the Lion design does not mention the cause of the installation of the torpedoes or their mission.
There are two theories which are the most realistic:
A - Launchers for long range acoustic torpedoes something like the British equivalent of the Japanese Long Lances with a reliable guidance system
B - Launchers for self/fleet defence ASW torpedoes.
If I recall correctly, there were efforts to put a "Trumper" active acoustic seeker on the standard Mark VIII/IX torpedoes in 1945.A - Launchers for long range acoustic torpedoes something like the British equivalent of the Japanese Long Lances with a reliable guidance system
UP41 was a private export design for Russia, not a design by Regia Marina nor intended for Regia Marina. Before 1940 RM was working on the design of a battleship armed with 3x3 406mm guns and very long range, combining diesel engine and turbine on 5 or 6 shafts. It was studied in case of an escalation of the naval race that Italy was actively discouraging, hoping to maintain the very favorable power ratio obtained by the late '30 against the French Navy. Italy hoped in a third London naval conference to take place in 1940 and to tailor Treaty limits on Littorio' s specs. If so, two more Littorios after Roma and Impero were to be laid down before 1945. Never heard of a 4 quadruple turret design in the late '30 time frame and I think it is absolutely implausible: Regia Marina known very well she could never expect to match other great European navies in a race to built extremely large battleships and she had both interest and intentions to not escalate battleship's size. One must also consider that many in RM were quite dismissive regarding the prospect of a 16"gun, evaluating it not much more powerful than the very potent 15" already adopted. However larger battleship's building was considered realistic enough at a later time to start building very large dry dock in Taranto. I think that ultimately, had the war not intervened, had the hope of a new Treaty failed, having to counter a larger number of battleship than she could have built, not liking the 16" gun, Regia Marina would have taken the Japanese way of building a small number of superiorly armed battleships with guns larger than 16" but this is only an hypothesis based on the Italian strategic thinking and conditions of immediate pre war.Were there any battleship designs for the Italian Navy after the UP.41 design? Maybe not quite "super battleship", but something that could go toe to toe with an Iowa or a Montana? There're rumours of a 4x4 406mm battleship design, but I don't know much beyond that
Neither the USN nor the IJN designed battleships post 1936 with that much firepower on basically a Yamato sized hull!Were there any battleship designs for the Italian Navy after the UP.41 design? Maybe not quite "super battleship", but something that could go toe to toe with an Iowa or a Montana? There're rumours of a 4x4 406mm battleship design, but I don't know much beyond that