U.S.S.R

Proton (Mk-4)
Kvant-1+TKS
Proton (Mk-4)
Modules
Proton-K (Mk-4)
VHEO/IPT
Proton-K (Mk-4)
GEO
Overall
Vehicle
Operational from 31.03.1987 19.04.1982 23.03.1983 05.02.1982

 

to   25.07.1987 21.12.1984 03.09.1987
Orbital flights   1 6 5 36
Payload weight (Mission) t   20.00 5.00 2.20
Gross liftoff weight t   692.10 690.60 690.15
Gross propellant weight t 622.08 622.08 634.64 637.30
Total length m 44.08 58.46 56.14 54.89
Max. diameter (span) m 7.40 7.40 7.40 7.40
Total liftoff thrust (s.l.) kN 9,469 9,469 9,469 9,469
Total impulse (vac) MN*s 1,948.1 1,948.1 1,991.4 2,000.8

Fairing

Total length m 16.12 10.52/14.03/16.12 8.90/10.40 7.65
Diameter m 4.15 4.15 3.90 3.90
Total weight t   3.0 1.8 1.5

Stage 4

Name       Block D-1 Block DM

 

Length m     4.90 (6.28) 4.90 (6.28)
Diameter m 3.70 3.70
Liftoff weight t 14.70 17.36
Propellant weight t 12.56 15.22
Engines   RD-58 RD-58M
Propellant   Kerosene/LOX Kerosene/LOX
Total thrust (vac) kN 83.36 83.61
Specific impulse (vac) N*s/kg 3452 3462
Burn time s 520 630
Total impulse (vac) MN*s 43.3 52.7
Stage 3

Name

         

 

Length m 4.11 (6.74) 4.11 (6.74) 4.11 (6.74) 4.11 (6.74)
Diameter m 4.15 4.15 4.15 4.15
Liftoff weight t 50.75 50.75 50.75 50.75
Propellant weight t 46.56 46.56 46.56 46.56
Engines   RD-0212 RD-0212 RD-0212 RD-0212
Propellant   UDMH/N2O4 UDMH/N2O4 UDMH/N2O4 UDMH/N2O4
Total thrust (vac) kN 594.0 (+30.9) 594.0 (+30.9) 594.0 (+30.9) 594.0 (+30.9)
Specific impulse (vac) N*s/kg 3200 3200 3200 3200
Burn time s 236 (250) 236 (250) 236 (250) 236 (250)
Total impulse (vac) MN*s 148.1 148.1 148.1 148.1
Stage 2

Name

         

 

Length m 14.40 17.05 (14.40) 17.05 (14.40) 17.05 (14.40)
Diameter m 4.15 4.15 4.15 4.15
Liftoff weight t 167.00 167.83 167.83 167.83
Propellant weight t 156.11 156.11 156.11 156.11
Engines 3+1 RD-0210 / -0211 RD-0210 / -0211 RD-0210 / -0211 RD-0210 / -0211
Propellant   UDMH/N2O4 UDMH/N2O4 UDMH/N2O4 UDMH/N2O4
Total thrust (vac.) kN 2,400 2,400 2,400 2,400
Specific impulse (vac) N*s/kg 3210 3210 3210 3210
Burn time s 208.8 208.8 208.8 208.8
Total impulse (vac) MN*s 501.1 501.1 501.1 501.1
Stage 1

Name

  Mk-4 Mk-4 Mk-4 Mk-4

 

Length m 21.18 (19.70) 21.18 (19.70) 21.18 (19.70) 21.18 (19.70)
Diameter m 4.15 (+1.60) 4.15 (+1.60) 4.15 (+1.60) 4.15 (+1.60)
Liftoff weight t 450.51 450.51 450.51 450.51
Propellant weight t 419.41 419.41 419.41 419.41
Engines 6 RD-253 RD-253 RD-253 RD-253
Propellant   UDMH/N2O4 UDMH/N2O4 UDMH/N2O4 UDMH/N2O4
Total thrust (s.l.) kN 9,468.6 9,468.6 9,468.6 9,468.6
Specific impulse (s.l.) N*s/kg 2796 2796 2796 2796
Burn time s 123.8 123.8 123.8 123.8
Total impulse (vac) MN*s 1,298.9 1,298.9 1,298.9 1,298.9