ISRO successfully test-fires GSLV-Mark III rocket engine


About ISRO: The Indian Space Research Organisation also called in short as ISRO is the famous space agency of the Indian government. Its primary objective is improvement of space technologies and it uses its applications for national benefit.

GSLV-Mark III rocket engine

GSLV-Mark III rocket engine

ISRO successfully launches GSLV-III

Developments of Satellites and rockets:

  1. India’s first satellite named Aryabhata. It was launched by Soviet Union.
  2. Rohini was become first satellite placed in orbit by Indian-made launch vehicle.
  3. Polar Satellite Launch Vehicle (PSLV) for launching satellites into polar orbits
  4. Geosynchronous Satellite Launch Vehicle (GSLV) for placing satellites into geostationary orbits.
  5. Recently, ISRO has successfully test-fired Geosynchronous Satellite Launch Vehicle (GSLV) Mark III. It was project’s high-thrust cryogenic rocket engine capable of generating a nominal thrust of 19 tonnes.

Tests Conducted:

  1. Test was conducted at ISRO’s Propulsion Complex at Mahendragiri in Tamil Nadu.
  2. It was near about 800 seconds time frame which produces 25 percent more thrust than the burn duration of the engine during flight.
  3. It clear test parameter like high-thrust cryogenic rocket engine, the engine operates on Gas Generator Cycle.
  4. It uses extremely low temperature propellants such as Liquid Hydrogen at -2530 C and Liquid Oxygen at -1930 C.


  1. This high-thrust cryogenic rocket engine will used to power Cryogenic stage (C25) i.e. the upper stage of the next generation GSLV MK-III rockets.
  2. The rockets are aimed at carrying four-tonne payloads, including future manned missions. This successful test will help ISRO to master this complex, high-performance cryogenic propulsion technology which will further help in building self-reliance for the Indian space programme.

- Published/Last Modified on: July 24, 2015