What military vehicle did Leonardo da Vinci design with a rotating scythe mechanism?

Leonardo da Vinci designed a scythed chariot, a military vehicle fitted with rotating blades intended to strike enemy troops.

The design belongs to Leonardo’s studies of battlefield engineering. A set of scythes projected from a rotating mechanism, turning as the chariot moved. The concept was visually formidable, but its own crew and horses would have faced serious dangers, and there is no firm evidence that Leonardo’s version entered practical service.

Leonardo’s scythed chariot is often confused with his armored vehicle, which is a separate design. The chariot emphasizes rotating blades, while the armored vehicle uses protective plating and weapons mounted around a covered platform.