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  2. Inlet cone - Wikipedia

    en.wikipedia.org/wiki/Inlet_cone

    An inlet cone, as part of an Oswatitsch-type inlet used on a supersonic aircraft or missile, is the 3D-surface on which supersonic ram compression for a gas turbine engine or ramjet combustor takes place through oblique shock waves. Slowing the air to low supersonic speeds using a cone minimizes loss in total pressure (increases pressure recovery).

  3. Shock wave - Wikipedia

    en.wikipedia.org/wiki/Shock_wave

    In this case, the gas ahead of the shock is stationary (in the laboratory frame) and the gas behind the shock can be supersonic in the laboratory frame. The shock propagates with a wavefront which is normal (at right angles) to the direction of flow. The speed of the shock is a function of the original pressure ratio between the two bodies of gas.

  4. Shock diamond - Wikipedia

    en.wikipedia.org/wiki/Shock_diamond

    Shock diamonds are the bright areas seen in the exhaust of this statically mounted Pratt & Whitney J58 engine on full afterburner.. Shock diamonds (also known as Mach diamonds or thrust diamonds, and less commonly Mach disks) are a formation of standing wave patterns that appear in the supersonic exhaust plume of an aerospace propulsion system, such as a supersonic jet engine, rocket, ramjet ...

  5. Shock (fluid dynamics) - Wikipedia

    en.wikipedia.org/wiki/Shock_(fluid_dynamics)

    Shock is formed due to coalescence of various small pressure pulses. Sound waves are pressure waves and it is at the speed of the sound wave the disturbances are communicated in the medium. When an object is moving in a flow field the object sends out disturbances which propagate at the speed of sound and adjusts the remaining flow field ...

  6. Pratt & Whitney J58 - Wikipedia

    en.wikipedia.org/wiki/Pratt_&_Whitney_J58

    The Pratt & Whitney J58 (company designation JT11D-20) is an American jet engine that powered the Lockheed A-12, and subsequently the YF-12 and the SR-71 aircraft. It was an afterburning turbojet engine with a unique compressor bleed to the afterburner that gave increased thrust at high speeds.

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    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. How a GM layoff email sent to employees triggered a storm on ...

    www.aol.com/gm-layoff-email-sent-employees...

    Like many people, Adam Bernard shared the shock of suddenly losing his job one Friday morning on social media. His post on LinkedIn simply stated: “Well, in unexpected news, I was let go from GM ...

  9. Oblique shock - Wikipedia

    en.wikipedia.org/wiki/Oblique_shock

    An oblique shock at the nose of a T-38 aircraft is made visible through Schlieren photography. An oblique shock wave is a shock wave that, unlike a normal shock, is inclined with respect to the direction of incoming air. It occurs when a supersonic flow encounters a corner that effectively turns the flow into itself and compresses. [1]

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