Stator vane assembly for controlling air flow in a gas turbine engien

A gas turbine engine stator vane assembly comprising an annular array of substantially radially extending stator vanes circumferentially spaced apart so that throats are defined between circumferentially adjacent stator vanes, each of said stator vanes comprising an aerofoil cross-sectional portion having a leading edge, a trailing edge, a pressure flank and a suction flank, each of said flanks interconnecting said leading and trailing edges, wherein at least a portion of the suction flank of each of said vanes is pivotally attached to the pressure flank of that vane to pivot about a line which is normal to the general direction of gas flow to provide variations in the cross-sectional areas of said throats between adjacent stator vanes, mechanical actuation means for pivoting said portions of said suction flank about respective pivot lines to facilitate said variations in throat cross-sectional area, wherein said pivot line is located adjacent to said trailing edge of its respective stator vane.