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  2. NACA duct - Wikipedia

    en.wikipedia.org/wiki/NACA_duct

    Three intakes (facing right) on an engine cowling When properly implemented, a NACA duct allows air to flow into an internal duct, often for cooling purposes, with a minimal disturbance to the flow. The design was originally called a submerged inlet, since it consists of a shallow ramp with curved walls recessed into the exposed surface of a ...

  3. Intake - Wikipedia

    en.wikipedia.org/wiki/Intake

    Aircraft using piston engines use intake systems similar to automobiles. With the development of jet engines and the subsequent ability of aircraft to travel at supersonic speeds, it was necessary to design inlets to provide the flow required by the engine over a wide operating envelope and to provide air with a high-pressure recovery and low distortion.

  4. S-duct - Wikipedia

    en.wikipedia.org/wiki/S-duct

    An S-duct (or serpentine inlet) is a type of jet engine intake duct used in several types of trijet aircraft. In this configuration, the intake is in the upper rear center of the aircraft, above or below the stabilizer, while the exhaust and engine is at the rear of the aircraft. The S-duct is located in the tail, or empennage, of the

  5. Components of jet engines - Wikipedia

    en.wikipedia.org/wiki/Components_of_jet_engines

    The air intake (inlet U.S. [6]) is an aerodynamic duct extending from an entry lip to the engine fan/compressor. For supersonic intakes with variable geometry it is called an intake system, referring to the need for shock-wave and internal duct flow management using variable position surfaces (ramps or cones) and bypass doors. [ 7 ]

  6. Meredith effect - Wikipedia

    en.wikipedia.org/wiki/Meredith_Effect

    P-51 radiator duct schematic diagram: 1 - air duct flap control system, 2 - air intake, 3 - oil radiator, 4 - oil radiator air exhaust, 5 - engine coolant radiator, 6 - air duct flaps, 7 - main air exhaust. The duct must be travelling at a significant speed with respect to the air for the effect to occur. Air flowing into the duct meets drag ...

  7. Diverterless supersonic inlet - Wikipedia

    en.wikipedia.org/wiki/Diverterless_supersonic_inlet

    The original intake is shown in the top image. The fundamental design of a gas turbine engine is such that the air flow-rate entering its compressor is regulated by the amount of fuel burned in its combustor. For supersonic flight the air entering the inlet also has to be regulated to a similar amount by the design of the entrance of the inlet ...

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