Successful Engine Restart:

  • ISRO recently achieved a significant milestone by successfully demonstrating the restart capability of the Vikas engine, a crucial step towards reusable launch vehicles.

Vikas Engine Overview:

  • The Vikas engine is a family of hypergolic liquid-fuel rocket engines developed by ISRO, powering various launch vehicles like PSLV, GSLV, and LVM3.

Recent Testing Success:

  • On January 17, 2025, the Vikas engine was successfully restarted after a 120-second shut-off period, following previous tests with shorter durations.

Engine Specifications:

  • The Vikas engine uses UDMH as fuel and N2O4 as oxidizer, producing a maximum thrust of 725 kN.

Engine Variants:

  • Different versions of the Vikas engine exist, including the HTVE (800 kN thrust) and the HPVE (under development).

Throttling Capability:

  • The Vikas engine has demonstrated throttling capabilities, allowing for precise control during missions.

Gaganyaan Mission:

  • The Vikas engine will be crucial for India’s Gaganyaan mission, with a high-thrust variant tested for extreme conditions.

Commercial Launch Operations:

  • ISRO has initiated commercial operations for the LVM3 launch vehicle’s L110 core liquid stage, marking a significant step in its global space commerce endeavors.