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Skyroot successfully test fires Stage-2 of Vikram 1 space launch vehicle

Why is it in the news?

  • Skyroot Aerospace successfully test-fired Stage-2 of the Vikram-1 space launch vehicle, known as Kalam-250, at ISRO’s Satish Dhawan Space Centre.

More about the news

  • Stage-2 is crucial in propelling the launch vehicle from the atmospheric phase to the vacuum of outer space.
  • The test recorded a peak sea-level thrust of 186 kilonewtons (kN), with an expected fully expanded vacuum thrust of around 235kN during flight.
  • Kalam-250 features a high-strength carbon composite rocket motor with solid fuel and a high-performance Ethylene-Propylene-Diene terpolymers (EPDM) Thermal Protection System (TPS).
  • The stage-2 includes a carbon ablative flex nozzle and high-precision electro-mechanical actuators for thrust vector control, ensuring the rocket’s desired trajectory.
  • The test involved ISRO’s Vikram Sarabhai Space Centre (VSSC), providing its proprietary head-mounted safe arm (HMSA) for safe operation.
  • The solid propellant for Kalam-250 was processed by Solar Industries at their Nagpur facility.
  • Skyroot Aerospace previously tested Kalam-100, the third stage of Vikram-1, successfully in June 2021.

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