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ISRO: successful test of indigenously developed scramjet engine

  • Scramjet Engine, Scramjet Engine ISRO, ISRO, Sriharikota, ATV
    ISRO plans to use the scramjet technology for its Avatar program.

    The space agency’s ATV rocket was able to fly at Mach 6 (six times the speed of sound) speeds, propelling India into the league of only four nations to be capable of doing so

  • Scramjet Engine, Scramjet Engine ISRO, ISRO, Sriharikota, ATV
    Scramjets are highly inefficient at low speeds, with their efficiency increasing at supersonic speeds.

    If you look at the schematics of a Scramjet (or Supersonic Combusting ramjet), it looks pretty straight forward – air gets sucked in from the front, fuel burns in middle and exhaust gas comes out of the back generating thrust

  • Scramjet Engine, Scramjet Engine ISRO, ISRO, Sriharikota, ATV
    PSLVs can only be used once, and are designed to carry both fuel and oxidizer with for launch.

    But this is where the simplicity of the design ends. Factors like air inlet design, air compressibility, complex flows, high temperatures, fuel injection, etc – make it really difficult to design a suitable scramjet powerplant.

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