Indian Space Research Organisation GSLV Mk.1 GSLV Mk.1+ GSLV Mk.1+ (F06)

Overall
Vehicle

Operational from 18.04.2001 20.09.2004 25.12.2010
  to 08.05.2003 02.09.2007  
Orbital flights   (1) +1 3 1
Payload weight t GTO  1.82 GTO 1.95 GTO 2.31
Gross liftoff weight t 400.40 415.00 418.00
Gross propellant weight t 346.11 360.91 363.50
Total length m 49.13 49.13 51.32
Max. diameter (span) m 7.50 7.50 7.50
Total liftoff thrust (s.l.) kN 6,622 6,982 6,982
Total impulse (vac) MN*s 960.2 1,019.6 1,031.1

Fairing

Total length m 7.80 7.80 8.66
Diameter m 3.40 3.40 4.00
Total weight t 1.25 1.25 ~1.35
Stage 3 Name   GS-3 (C-12.5) GS-3 (C-12.5) GS-3 (C-15)
  Length m 9.0 (8.72) 9.0 (8.72) 10.3 (10.05)
Diameter m 2.80 2.80 2.80
Liftoff weight t 15.20 15.18 17.87
Propellant weight t 12.64 12.64 15.23
Engines   KVD-1 KVD-1 KVD-1
Propellant   LH2/LOX LH2/LOX LH2/LOX
Total thrust (vac) kN 73.55 73.55 73.55
Specific impulse (vac) N*s/kg 4427 4452 4452
Burn time s 760 765 925
Total impulse (vac) MN*s 56.0 56.3 67.8
Stage 2

Name

  GS-2 (L-37.5) GS-2 (L-39.5) GS-2 (L-39.5)
  Length m 11.0 (11.56) 11.0 (11.56) 11.0 (11.56)
Diameter m 2.80 2.80 2.80
Liftoff weight t 42.30 44.30 44.30
Propellant weight t 37.47 39.47 39.47
Engines  

VIKAS-2

VIKAS-2B

VIKAS-2B

Propellant  

UDMH/N2O4

UH25/N2O4

UH25/N2O4

Total thrust (vac) kN 725.0 804.5 804.5
Specific impulse (vac) N*s/kg 2903 2962 2962
Burn time s 150 145.3 145.3
Total impulse (vac) MN*s 108.8 116.9 116.9

Stage 1

Name   GS-1 (S-138) GS-1 (S-138) GS-1 (S-138)
  Length (+adapter) m 21.3 (20.13) 21.3 (20.13) 21.3 (20.13)
Diameter m 2.80 2.80 2.80
Liftoff weight t 161.50 161.20 161.11
Propellant weight t 138.12 138.12 138.12
Engines        
Propellant   solid HTPB solid HTPB solid HTPB
Total thrust (s.l.) kN 4,219.9 (max) 4,270.8 (max) 4,270.8 (max)
Specific impulse (s.l.) N*s/kg 2324 2354 2354
Burn time s 106 107 107
Total impulse (vac) MN*s 360.3 364.4 364.4

Booster

Name   4 GS-0 (L-40) 4 GS-0 (L-42.5) 4 GS-0 (L-42.5)
  Length m 19.68 19.68 19.68
Diameter m 2.10 2.10 2.10
Liftoff weight t 178.30 191.08 191.08
Propellant weight t 157.88 170.68 170.68
Engines  

VIKAS-1

VIKAS-1+

VIKAS-1+

Propellant  

UDMH/N2O4

UH25/N2O4

UH25/N2O4

Total thrust (s.l.) kN 2,402.0 2,710.8 2,710.8
Specific impulse (s.l.) N*s/kg 2432 2501 2501
Burn time s 160 157.5 157.5
Total impulse (vac) MN*s 435.1 482.0 482.0