ISRO Successfully Conducted Static Test of 3rd Stage of SSLV in Sriharikota, AP
On December 30, 2025, the Indian Space Research Organisation (ISRO) successfully conducted a static ground test of an enhanced version of the 3rd stage (SS3) of its Small Satellite Launch Vehicle (SSLV) at the Solid Motor Static Test Facility of the Satish Dhawan Space Center (SDSC) in Sriharikota, Andhra Pradesh (AP).
On December 30, 2025, the Indian Space Research Organisation (ISRO) successfully conducted a static ground test of an enhanced version of the 3rd stage (SS3) of its Small Satellite Launch Vehicle (SSLV) at the Solid Motor Static Test Facility of the Satish Dhawan Space Center (SDSC) in Sriharikota, Andhra Pradesh (AP).
- SSLV is a three-stage, all-solid ISRO launch vehicle designed for quick, on-demand missions and industrial production support.
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- What? Successfully Static Test of Improved Version of 3rd Stage (SS3) of SSLV
- Where? Solid Motor Static Test Facility, SDSC (in Sriharikota, AP)
- Conducted by: ISRO
- Key Upgrade: Carbon-epoxy motor case with improved igniter and nozzle
- Impact: Enhanced SS3 qualified for flight induction
Key Details of Test:
Test Trial: During the test, the enhanced SS3 motor was fired for 108 seconds (s), closely matching the pre-test predictions for all parameters.
- The motor was instrumented with around 233 sensors to monitor pressure, thrust, temperature, vibration and the behaviour of control electronics.
Impact: Following the success of this test, an enhanced version of SS3 now qualifies for induction in flight.
Enhanced SS3 Performance: The upgrades, including a new carbon-epoxy motor case, have boosted SSLV’s payload capacity by about 90 kilogram (kg) and enhanced efficiency and reliability with an improved igniter and nozzle system.
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