Abstract: An aircraft seat having a movable squab and backrest, and a fixed seat chassis is presented. A mechanism for moving the squab and backrest has a linear runner mounted on the seat chassis and includes a linear drive for extending (and retracting) the assembly between a retracted position and an extended position. A first cam track allows adjustment the height of the back edge of the seat squab, the first cam track being generally parallel to the linear runner through the majority of its length and having a rearmost substantially vertical portion. A first cam follower mechanism interconnects a back edge of the seat squab, the first cam track and the linear drive, for motion of the seal squab. A second cam track is provided for adjusting the inclination of the backrest and a second follower is connected to the seatback.