Patent ID: 6968675

Claim:
A thrust reverser for a turbofan engine having an air duct defined radially inwardly by a wall around the turbofan engine and radially outwardly in part by a fan cowl of the turbofan engine, comprising: (a) a bulkhead adapted to be mounted on the fan cowl having a first wall defining a shaped surface, and a ramp portion located between a nose portion and the outer surface of the bulkhead; (b) a translating cowl having a second wall defining a shaped surface, the translating cowl supported for movement axially between a closed position substantially adjacent the bulkhead and an open position spaced axially apart from the bulkhead so as to form an outlet for discharge of air from the air duct, the air discharged from the air duct having a component of velocity in a forward direction wherein the area between the ramp portion of the bulkhead and the leading edge of the translating cowl is characterized by the absence of a cascade of flow turning vanes to turn air discharged from the air duct in a forward direction; and (c) a plume control device extending longitudinally across said outlet and partially circumferentially about the thrust reverser to divide the air discharged from the air duct into a plurality of plumes.