A gas turbine engine having a thrust reverser assembly, a core engine, a nacelle surrounding the core engine, and a bypass duct defined by and between the nacelle and the core engine, the thrust reverser assembly comprising: a translating cowl mounted to the nacelle and adapted to translate a distance in an aft direction of the gas turbine engine, the translating cowl having a radially inner wall that defines a radially outer flow surface of the bypass duct; a fixed structure within the nacelle, the fixed structure comprising at least one opening that is exposed to the bypass duct when the translating cowl is translated in the aft direction; and blocker doors mounted to the nacelle and having stowed positions and deployed positions, each of the blocker doors having a first end, an oppositely-disposed second end, and a length therebetween, each of the blocker doors being axially guided adjacent the first end thereof by the fixed structure and being pivotally and slidably connected along the length thereof to the inner wall of the translating cowl by at least one pivoting sleeve so that translation of the translating cowl in the aft direction causes each of the blocker doors to move from the stowed position thereof to the deployed position thereof by sliding at the first end thereof relative to the fixed structure and sliding along the length thereof relative to the inner wall of the translating cowl, wherein the inner wall of the translating cowl is between each of the blocker doors and the bypass duct when the blocker doors are in their stowed positions, and wherein the second end of each of the blocker doors projects into the bypass duct and diverts bypass air within the bypass duct through the opening of the fixed structure when the blocker doors are in their deployed positions. a translating cowl mounted to the nacelle and adapted to translate a distance in an aft direction of the gas turbine engine, the translating cowl having a radially inner wall that defines a radially outer flow surface of the bypass duct; a fixed structure within the nacelle, the fixed structure comprising at least one opening that is exposed to the bypass duct when the translating cowl is translated in the aft direction; and blocker doors mounted to the nacelle and having stowed positions and deployed positions, each of the blocker doors having a first end, an oppositely-disposed second end, and a length therebetween, each of the blocker doors being axially guided adjacent the first end thereof by the fixed structure and being pivotally and slidably connected along the length thereof to the inner wall of the translating cowl by at least one pivoting sleeve so that translation of the translating cowl in the aft direction causes each of the blocker doors to move from the stowed position thereof to the deployed position thereof by sliding at the first end thereof relative to the fixed structure and sliding along the length thereof relative to the inner wall of the translating cowl, wherein the inner wall of the translating cowl is between each of the blocker doors and the bypass duct when the blocker doors are in their stowed positions, and wherein the second end of each of the blocker doors projects into the bypass duct and diverts bypass air within the bypass duct through the opening of the fixed structure when the blocker doors are in their deployed positions.