Abstract: The disclosed subject matter relates to an apparatus for simulating motion, comprising: a base; a seat with a seat pan and seat back, the seat having a roll axis and, orthogonal thereto, a pitch axis; a mount mounting the seat to the base at least pivotably about said roll axis and said pitch axis; a left seat back flap and a right seat back flap each of which being pivotably attached to a respective side of the seat back; and a linkage linking said seat back flaps to the base so that, when any one of the sides of the seat back is moved towards the base, the respective seat back flap is pivoted inwards and, when said side of the seat back is moved away from the base, said seat back flap is pivoted outwards.

Abstract: The disclosed subject matter relates to an apparatus for simulating motion, comprising: a base; a seat with a seat pan and seat back, the seat having a roll axis and, orthogonal thereto, a pitch axis; a mount mounting the seat to the base at least pivotably about said roll axis and said pitch axis; a left seat back flap and a right seat back flap each of which being pivotably attached to a respective side of the seat back; and a linkage linking said seat back flaps to the base so that, when any one of the sides of the seat back is moved towards the base, the respective seat back flap is pivoted inwards and, when said side of the seat back is moved away from the base, said seat back flap is pivoted outwards.