The battle was small in material terms. Italy brought 32 vessels and Austria 26, although both totals included gunboats, auxiliaries, merchant craft, and older wooden ships alongside a limited number of armoured vessels. Italy lost two ships and reported 660 killed and wounded, while Austria reported 176. Its influence resembled the destruction of Germany's destroyer force at Narvik: a limited action with consequences far beyond the immediate losses. Admiral Fisher later associated Lissa with the need for many guns able to fire ahead, a concern that helped shape Dreadnought's wing-turret arrangement. Lissa's confused action and unrepresentative fleets make that enormous design legacy hard to explain.
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Why a small battle shaped later warship design
Lissa's limited casualties and mixed fleets made it a poor model, yet its apparent lessons influenced the layout of HMS Dreadnought decades later.