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In addition, due to the interaction between the jet and the airflow flowing through the upper surface of the wing, vortexes can be formed on both sides of the tail nozzle, which further reduces the exhaust temperature. Especially due to the nozzle temperature adjustment technology, the infrared exposure signal of the nozzle part is greatly reduced. The nozzle is wide and flat, making it impossible to see the nozzle behind the aircraft. In addition, the engine components are also equipped with an airflow mixer, which can guide the cold air flowing through the surface of the wing into the engine, and continuously reduce the temperature of the outer layer of the engine. The engine nozzle is placed deep in the wing and has a honeycomb shape so that radar waves can enter and cannot exit. The engine tail nozzle of the B-2 aircraft is located at the cut between the three serrated protruding parts of the trailing edge of the wing, and there is a distance from the trailing edge, which is covered by the lower surface of the wing, thereby reducing the heat of the engine nozzle and reducing Opportunities to be discovered by enemy infrared detection devices.
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