Module arranged at the downstream end of a bypass turbofan engine

摘要

A module (10) for use with a bypass turbofan engine. The module comprises a hot flow channel through which the hot gas flow generated by the engine can flow and a bypass flow channel (14) through which the bypass air generated by the engine can flow. Part of the bypass air may be re-directed to be exhausted from the module at an angle relative to the longitudinal axis of the module so as to create vertical thrust. The hot flow channel may be separated from the bypass flow channel by a porous separator (12) that allows a degree of mixing between the hot gas flowing in the hot gas flow channel and the cold gas flowing in the cold gas flow channel.