Sisu RA-140 DS, also known as "Raisu" in Finland, is a flail-type demining vehicle developed by Finnish company Sisu Auto and currently manufactured by Patria. It has been sold to other military forces, and is also being used in peacekeeping operations.
The vehicle is based on Sisu XA-180 armoured vehicle. The cabin is shielded against explosions. The 3.4 m wide chain flail is mounted on the back. While in operation, it can move at the speed of 6 km/h.