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Mahesh

24/06/24 11:14 AM IST

Pushpak, ISRO’s reusable launch vehicle, clears test

In News
  • The Indian Space Research Organisation (ISRO) completed the third Reusable Launch Vehicle (RLV) Landing Experiment (LEX) recently at the Aeronautical Test Range (ATR) in Chitradurga, Karnataka.
About Pushpak
  • Pushpak autonomously executed cross-range correction manoeuvres, approached the runway and performed a precise horizontal landing at the runway centreline.
  • Due to this vehicle’s low lift-to-drag ratio aerodynamic configuration, the landing velocity exceeded 320 kmph, compared to 260 kmph for a commercial aircraft and 280 kmph for a typical fighter aircraft.
  • After touchdown, the vehicle velocity was reduced to nearly 100 kmph using its brake parachute, after which the landing gear brakes were employed for deceleration and stop on the runway.
  • During this ground roll phase, Pushpak utilises its rudder and nose wheel steering system to autonomously maintain a stable and precise ground roll along the runway
  • The mission simulated the approach and landing interface and high-speed landing conditions for a vehicle returning from space, reaffirming ISRO’s expertise in acquiring the most critical technologies required for the development of a Reusable Launch Vehicle (RLV). 
  • The RLV-LEX uses multisensor fusion including sensors like the Inertial sensor, Radar altimeter, Flush air data system, Pseudolite system and NavIC.
  • Notably, the RLV-LEX-03 mission reused the winged body and flight systems as such without any modification, from the LEX-02 mission, demonstrating the robustness of ISRO’s capability of design to reuse flight systems for multiple missions.
  • This mission simulates the approach & landing interface and high-speed landing conditions for a vehicle returning from space, which will reaffirm ISRO’s expertise in acquiring the most critical technologies required for the development of a Reusable Launch Vehicle (RLV).
Source- The Hindu

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