| 摘要 |
A turbofan exhaust nozzle (28) includes a fan duct (40) defined between a fan nacelle (32) and a core engine cowling (30). The fan duct (40) includes a longitudinal endwall (48) and a partition (50) spaced therefrom to define a secondary flow duct (52). The fan duct (40) also includes a primary outlet (42), and the secondary duct (52) includes a secondary outlet (54). The partition (50) between the two ducts includes an aperture (56) covered by a selectively movable flap (58). |
