The upper edge of the F-15 fighter’s air intake is not fixed, but can be moved. After the engine is started, the upper edge of the intake duct of the F-15 fighter will be depressed, and the order of depression is first right then left.
When maneuvering in flight, the inlet of the F-15 will also automatically adjust the opening size according to the flow information of the airflow sensor in the inlet to keep the F-15’s engine always working in the optimal range. It should be pointed out that the inlet of the F-15 is not only externally adjustable, but also designed with an automatically adjusted baffle to adjust the amount of intake