Geosynchronous Satellite Launch Vehicle

GSLV
GSLV-F14 carrying INSAT-3DS at the Satish Dhawan Space Centre Second Launch Pad
FunctionMedium-lift Launch System
ManufacturerISRO
Country of originIndia
Cost per launchUS$47 million[1]
Size
Height49.13 m (161.2 ft)[2]
Diameter2.8 m (9 ft 2 in)
Mass414,750 kg (914,370 lb)
Stages3
Capacity
Payload to LEO
Mass6,000 kg (13,000 lb)[3]
Payload to SSO
Mass3,000 kg (6,600 lb)[3]
Payload to GTO
Mass2,500 kg (5,500 lb)[2][4]
Launch history
Status
  • Mk I: Retired
  • Mk II: Active
Launch sitesSatish Dhawan Space Centre
Total launches18 + 6 (planned)
Success(es)12
Failure(s)4
Partial failure(s)2
First flight
  • Mk.I: 18 April 2001
  • Mk.II: 15 April 2010
Last flight
  • Mk.I: 25 December 2010
  • Mk.II: 30 July 2025
Carries passengers or cargo
  • INSAT
  • GSAT (South Asia Satellite)
  • GISAT
  • NVS
  • NISAR
Boosters
No. boosters4 L40 Hs
Height19.7 m (65 ft)[5]
Diameter2.1 m (6 ft 11 in)
Propellant mass42,700 kg (94,100 lb) each
Powered by1 L40H Vikas 2
Maximum thrust760 kN (170,000 lbf)[6]
Total thrust3,040 kN (680,000 lbf)
Specific impulse262 s (2.57 km/s)
Burn time154 seconds
PropellantN2O4 / UDMH
First[6][5] stage
Height20.2 m (66 ft)
Diameter2.8 m (9 ft 2 in)
Propellant mass138,200 kg (304,700 lb)
Powered by1 S139 Booster
Maximum thrust4,846.9 kN (1,089,600 lbf)
Specific impulse237 s (2.32 km/s)
Burn time100 seconds
PropellantHTPB (solid)
Second[6][5] stage
Height11.6 m (38 ft)
Diameter2.8 m (9 ft 2 in)
Propellant mass39,500 kg (87,100 lb)
Powered by1 GS2 Vikas 4
Maximum thrust846.8 kN (190,400 lbf)
Specific impulse295 s (2.89 km/s)
Burn time139 seconds
PropellantN2O4 / UDMH
Second GS2 (GL40)[6][7] stage
Height11.9 m (39 ft)
Diameter2.8 m (9 ft 2 in)
Propellant mass42,500 kg (93,700 lb)
Powered by1 GS2 Vikas 4
Maximum thrust846.8 kN (190,400 lbf)
Specific impulse295 s (2.89 km/s)
Burn time149 seconds
PropellantN2O4 / UDMH
Third[5] stage (GSLV Mk I) – CUS
HeightN/A
Diameter2.8 m (9 ft 2 in)
Propellant massN/A
Powered by1 KVD-1
Maximum thrust70 kN (16,000 lbf)
Specific impulse462 s (4.53 km/s)
Burn timeN/A
PropellantLOX / LH2
Third[5] stage (GSLV Mk II) – CUS12
Height8.7 m (29 ft)
Diameter2.8 m (9 ft 2 in)
Propellant mass12,800 kg (28,200 lb)
Powered by1 CE-7.5
Maximum thrust75 kN (17,000 lbf)
Specific impulse454 s (4.45 km/s)
Burn time718 seconds
PropellantLOX / LH2
Third[7] stage (GSLV Mk II) – CUS15
Height9.9 m (32 ft)
Diameter2.8 m (9 ft 2 in)
Propellant mass15,000 kg (33,000 lb)
Powered by1 CE-7.5
Maximum thrust75 kN (17,000 lbf)
Specific impulse454 s (4.45 km/s)
Burn time846 seconds
PropellantLOX / LH2

Geosynchronous Satellite Launch Vehicle (GSLV) is a class of expendable launch systems operated by ISRO. GSLV has been used in eighteen launches since 2001.

  1. ^ "GAO".
  2. ^ a b "Geosynchronous Satellite Launch Vehicle". Archived from the original on 21 October 2015. Retrieved 21 December 2014.
  3. ^ a b "HSFC Presentation from International Space Conference and Exhibition 2021" (PDF). Archived from the original (PDF) on 13 September 2021. Retrieved 7 October 2022.
  4. ^ "ISRO developing vehicle to launch small satellites". Retrieved 29 August 2018.
  5. ^ a b c d e "GSLV F09 Brochure". ISRO. Archived from the original on 27 May 2017. Retrieved 5 June 2017.
  6. ^ a b c d "GSLV F08 Brochure". ISRO. Archived from the original on 10 July 2021. Retrieved 26 March 2018.
  7. ^ a b "GSLV F11 Brochure". ISRO. Archived from the original on 21 December 2018. Retrieved 21 December 2018.
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