Country of origin | India |
---|---|
First flight | 15 April 2010 (failure) 5 January 2014 (success) |
Designer | LPSC, Indian Space Research Organisation |
Manufacturer | Hindustan Aeronautics Limited ISRO |
Application | Upper-stage booster |
Status | In use |
Liquid-fuel engine | |
Propellant | LOX / LH2[1] |
Cycle | Fuel-rich staged combustion |
Configuration | |
Chamber | 1 |
Performance | |
Thrust, vacuum | 73.5 kN (16,500 lbf)[2] |
Chamber pressure | 5.8 MPa (58 bar) / 7.5 MPa (75 bar) |
Specific impulse, vacuum | 454 seconds (4.45 km/s) |
Dimensions | |
Length | 2.14 m (7.0 ft) |
Diameter | 1.56 m (5.1 ft) |
Dry weight | 435 kg |
Used in | |
Upper stage of GSLV Mk.II |
The CE-7.5 is a cryogenic rocket engine developed by the Indian Space Research Organisation to power the upper stage of its GSLV Mk-2 launch vehicle. The engine was developed as a part of the Cryogenic Upper Stage Project (CUSP). It replaced the KVD-1 (RD-56) Russian cryogenic engine that powered the upper stage of GSLV Mk-1.[3]
CE-7.5 is a regeneratively-cooled, variable-thrust, fuel-rich staged combustion cycle rocket engine.[4][5]
The specifications and key characteristics of the engine are:
Indian Space Research Organisation (ISRO) formally started the Cryogenic Upper Stage Project in 1994.[10] The engine successfully completed the Flight Acceptance Hot Test in 2008,[6] and was integrated with propellant tanks, third-stage structures and associated feed lines for the first launch. The first flight attempt took place in April 2010 during the GSLV Mk.II D3/GSAT-3 mission. The engine ignited, but the ignition did not sustain as the Fuel Booster Turbo Pump (FBTP) shut down after reaching a speed of about 34,500 rpm 480 milliseconds after ignition, due to the FBTP being starved of Liquid Hydrogen (LH2).[2] On 27 March 2013 the engine was successfully tested under vacuum conditions. The engine performed as expected and was qualified to power the third stage of the GSLV Mk-2 rocket. On 5 January 2014 the cryogenic engine performed successfully and launched the GSAT-14 satellite in the GSLV-D5/GSAT-14 mission.[11][12]
CE-7.5 is being used in the third stage of ISRO's GSLV Mk.II rocket.[13]