Gas turbine engine with ejector

An apparatus comprising:

• a gas turbine engine having a moveable nozzle ejector and an outer casing with a nacelle, an exhaust flow from the gas turbine engine forming the primary fluid of the moveable nozzle ejector;
• a passageway between the outer casing and the nacelle operable to convey at least a portion of a boundary layer air withdrawn from an external flow stream surface upstream of the nozzle ejector;
• a heat exchanger disposed within the passageway;
• and
• a moveable flap having an open position and a closed position, the open position forming an open position for a secondary airflow path from a flow stream surface exterior of the moveable nozzle ejector to the passageway, the closed position forming a closed position secondary airflow path from the flow stream surface through the passageway, and to the primary fluid of the nozzle ejector.

An apparatus comprising:

• a gas turbine engine having an outer casing enclosed by a nacelle and is capable of producing an exhaust flow, wherein the nacelle having an opening therethrough for receiving external air;
• an airflow surface forming by the nacelle for receiving the external air from the slots and is capable of producing a boundary layer of fluid formed by passage of a freestream along the airflow surface;
• a moveable ejector having a primary fluid flow produced by the gas turbine engine;
• and
• means for selecting a secondary fluid flow for the ejector.