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Manuscript B, folio 90v

Hullbreaking Boat

On folio 90v Leonardo designs a warship with a hidden rostrum that rams the enemy ship below the water level.

The rostrum is connected to a system of levers and pulleys operated by sailors. Leonardo also recommends using sharp, heavy wooden trunks to sink the enemy ship.
The mechanism has a large counterweight that allows repeated heavy blows with the rostrum.
L3 Collection
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