Pre-exit pivot door thrust reverser

A pre-exit thrust reverser for a turbofan engine, comprising:

• an upper reverser door pivotally mounted to a frame and a lower reverser door pivotally mounted to the frame, the upper reverser door having an upper door length and an upper trailing edge and the lower reverser door having a lower door length and a lower trailing edge and
• an exhaust duct fixedly mounted to the frame,
• wherein the upper door length is greater than the lower door length and
• wherein the upper trailing edge is configured to extend aft of the lower trailing edge when the pre-exit thrust reverser assumes a deployed state.

An gas turbine engine, comprising

• a core engine;
• a nacelle surrounding the core engine;
• a fan operably connected to the core engine and configured to drive air along a flow path in a bypass duct between the nacelle and an outer casing of the core engine;
• a mixing section where exhaust from the core engine is mixed with air from the bypass duct and
• a thrust reverser downstream of the mixing section, wherein the thrust reverser comprises
• an upper reverser door pivotally mounted to a frame and having an upper trailing edge;
• a lower reverser door pivotally mounted to the frame having a lower trailing edge and
• an exhaust duct fixedly mounted to the frame,
• wherein the upper trailing edge is configured to extend aft of the lower trailing edge when the thrust reverser assumes a deployed state.