The Master Cylinder (MC) is responsible for the fluid pressurization and the fluid displacement in the Wheel Brake Assembly (WBA) according to the command of the pilot. 

It is designed as a single-stage cylinder.

Only one piston (Piston Rod) displaces the needed amount of fluid inside the WBA.

The fluid volume that can be displaced with a complete stroke is largely bigger than the needed to fill the WBA clearance and to perform the braking action. The MC is made in aluminium alloy while the piston is made in stainless steel.

Both HYD ports are equipped with Rosan type fitting per AS4099-4.