Scythed chariot

The scythed chariot was a modified war chariot invented by the King of Magadha, Ajatshatru in c.475 B.C. He used this chariots against the licchavis. A scythed chariot was simply a war chariot with a blade(s) mounted on both ends of the axle. The blades extended horizontally for a meter on the sides of the chariot, rotating as the chariot was pulled.

The scythed chariot was pulled by a team of four horses and manned by a crew of up to three men, one driver and two warriors. Theoretically the scythed chariot would plow through infantry lines, cutting combatants in half or at least opening gaps in the line which could be exploited. In practice there were several problems. It was difficult to get horses to charge into the tight phalanx formation of the Greek/Macedonian hoplites (infantry). Also, a disciplined army could diverge as the chariot approached, and then collapse quickly behind it, allowing the chariot to pass without causing many casualties. Third, war chariots had limited military capabilities. They were strictly an offensive weapon and were best suited against infantry in open engagements where the charioteers had room to maneuver.

One of the most notable defeats to the Persian scythed chariot was in combat against the Macedonian phalanx led by Alexander the Great. Realizing that the chariots were already a cumbersome element of the Persian army (as shock units are prone to be) led by Darius III, the phalangites were instructed to increase this disadvantage. At the last seconds before the chariots would close with infantry, the phalangites would quickly fold into an enveloping formation in the shape of an E, where the middle tab would be the chariot. By doing this, the chariots would be trapped by the bodies of soldiers it killed, and the long Greek sarissa. This particular tactic was most successful at the Battle of Gaugamela, where Darius fled.

Despite these shortcomings scythed chariots were used with some success by the Persians, the kingdoms of the Hellenistic Era, and later Rome.

Late in the Imperial period the Romans experimented with an unusual variant of the idea that called for cataphract-style lancers to sit on one or more of the horses drawing the chariot, to increase the shock of the charge. (The unit was short-lived, suggesting that the idea was not effective.)

A scythed chariot can be seen in the great chariot race of Ben Hur, operated by Messala (here called "Greek chariot").