McDonnell Douglas Astronautics Cor.

Delta A Delta B Delta C Delta C1 Delta D

Overall
Vehicle

Operational from 02.10.1962 13.12.1962 27.11.1962 25.05.1966 1908.1964

 

to 27.10.1962 19.03.1964 08.03.1967 22.01-1969 06.04.1965
Orbital flights   2 9 10 3 2
Payload weight t LEO 0.320 LEO 0.375 LEO 0.410 LEO 0.600 GTO 0.104
Gross liftoff weight t 52.31 52.95 53.02 53.23 65.45
Gross propellant weight t 48.43 48.99 49.02 49.06 59.00
Total length m 26.80 27.42 27.70 27.42 29.66
Max. diameter (span) m         4.11
Total liftoff thrust (s.l.) kN 742.9 742.9 742.9 742.9  
Total impulse (vac) MN*s 134.4 135.9 136.0 136.1 161.0

Fairing

Total length (+Altair) m 3.21 2.93/3.21 2.93/3.21 2.93 3.21 (+1.96)
Diameter m 0.84 1.37/0.84 1.37/0.84 1.37 0.84
Total weight t 0.20 0.20 0.20 0.20 0.30
Stage 3

Name

  Altair IA Altair IA Altair IIA Altair III 2 x Altair IIA
  Length m 1.83 (1.53) 1.83 (1.53) 1.69 (1.58) 1.83 (1.58) 1.69 (1.58)
Diameter m 0.84 (0.48) 0.84 (0.48) 0.84 (0.48) 0.84 (0.51) 0.84 (0.48)
Liftoff weight t 0.239 0.239 0.275 0.299 0.275
Propellant weight t 0.211 0.211 0.235 0.275 0.235
Engines   X-248 X-248 X-258 FW-4D X-258
Propellant   solid solid solid solid solid
Total thrust (vac) kN 13.8 13.8 24.8 26.4 24.8
Specific impulse (vac) N*s/kg 2785 2785 2785 2805 2785
Burn time s 42.6 42.6 26.4 29.2 26.4
Total impulse (vac) MN*s 0.59 0.59 0.65 0.77 1.30
Stage 2

Name

           
  Length m 6.55 (6.15) 7.45 (6.90) 7.45 (6.90) 7.45 (6.90) 7.45 (6.90)
Diameter m 0.84 0.84 0.84 0.84 0.84
Liftoff weight t 2.110 2.692 2.692 2.692 2.692
Propellant weight t 1.575 2.140 2.140 2.140 2.140
Engines   AJ-10-118 AJ-10-118D AJ-10-118D AJ-10-118D AJ-10-118D
Propellant  

UDMH/WFNA

UDMH/IRFNA UDMH/IRFNA UDMH/IRFNA UDMH/IRFNA
Total thrust (vac) kN 33.4 33.7 33.7 33.7 33.7
Specific impulse (vac) N*s/kg 2648 2672 2672 2672 2672
Burn time s 125 169.7 169.7 169.7 170
Total impulse (vac) MN*s 4.17 5.7 5.7 5.7 5.7

Stage 1

Name   DSV-2B DSV-2B DSV-2B DSV-2B DSV-2C
  Length m 17.04 17.04 17.04 17.04 17.04
Diameter m 2.44 2.44 2.44 2.44 2.44
Liftoff weight t 49.44 49.44 49.44 49.44 49.44
Propellant weight t 46.64 46.64 46.64 46.64 46.64
Engines   MB-3-II MB-3-II MB-3-II MB-3-II MB-3-III
Propellant   Kerosene/LOX Kerosene/LOX Kerosene/LOX Kerosene/LOX Kerosene/LOX
Total thrust (s.l.) kN 734.0 (+8.9) 734.0 (+8.9) 734.0 (+8.9) 734.0 (+(8.9) 756.2 (+8.9)
Specific impulse (s.l.) N*s/kg 2456 2456 2456 2456 2456
Burn time s 153.8 153.8 153.8 153.8 149.3
Total impulse (vac) MN*s 129.6 129.6 129.6 129.6 129.8

Booster

Name           3 Castor I
  Length m         7.25 (5.72)
Diameter m 0.79
Liftoff weight t 12.642
Propellant weight t 9.981
Engines   TX-33-52
Propellant   solid
Total thrust (s.l.) kN 446.4 (av)
Specific impulse (s.l.) N*s/kg 1655
Burn time s 37
Total impulse (vac) MN*s 24.2