NPO Yuzhnoye (Ukraine),  SeaLaunch Comp. Zenit 3SL
Overall
Vehicle
Operational from 28.03.1999

 

to 24.09.2011
Orbital flights   31
Max. payload weight t GTO 6.00
Gross liftoff weight t 472.90
Gross propellant weight t 425.13
Total length m 59.64
Max. diameter (span) m 4.15
Total liftoff thrust (s.l.) kN 7,257
Total impulse (vac) MN*s 1,418.7

Fairing

Total length m 10.58
Diameter m 4.10
Total weight t 2.00
Stage 3 Name   Block DM-SL
  Length m 5.71
Diameter m 3.70
Liftoff weight (+adapters) t 19.71
Propellant weight t 15.85
Engines   RD-58Z
Propellant   Kerosene/LOX
Total thrust (vac) kN 79.46
Specific impulse (vac) N*s/kg 3510
Burn time s 700
Total impulse (vac) MN*s 55.6
Stage 2 Name    
  Length m 10.41
Diameter m 3.90
Liftoff weight t 90.85
Propellant weight t 82.49
Engines   RD-120 forced
Propellant   Kerosene/LOX
Total thrust (vac) kN 912.0 (+78.5)
Specific impulse (vac) N*s/kg 3432
Burn time s 277 (375)
Total impulse (vac) MN*s 282.5
Stage 1

Name

   
  Length m 32.94
Diameter m 3.90
Liftoff weight t 354.35
Propellant weight t 326.79
Engines (Chambers)   RD-171M (4)
Propellant  

Kerosene/LOX

Total thrust (s.l.) kN 7,256.9
Specific impulse (s.l.) N*s/kg 3033
Burn time s 136.6
Total impulse (vac) MN*s 1,080.6

                    Note: RD-171 is throttled to 50% thrust after 114 sec