|
United Launch Alliance |
NGLS Vulcan 401 | NGLS Vulcan 541 | Vulcan-Centaur (562) | |||||
|
Overall |
Operational |
from | ||||||
| to | canceled | canceled | ||||||
|
Orbital flights |
||||||||
|
Payload weight |
t | GTO | 7 | GEO | 6 | GEO | 7 | |
|
Gross liftoff weight |
t | ~431.3 | ~633.7 | ~771.8 | ||||
|
Gross propellant weight |
t | 392.07 | 581.79 | 710.94 | ||||
|
Total length |
m | 56.25 | 57.10 | 60.05 | ||||
|
Max. diameter (span) |
m | |||||||
|
Total liftoff thrust (s.l.) |
kN | 4,893.1 | ||||||
|
Total impulse (vac) |
MN*s | 1,330.3 | 1,957.4 | 2,269.5 | ||||
|
Fairing |
Total length |
m | 12.93 | 23.45 | 26.40 | |||
|
Diameter |
m | 4.20 | 5.40 | 5.40 | ||||
|
Total weight |
t | 2.305 | 4.649 | ~5.0 | ||||
| Stage 2 |
Name |
Cent. D-5 SEC | Cent. D-5 SEC | Centaur X | ||||
|
Length |
m | 12.84 | 12.84 | ~13.5 | ||||
|
Diameter |
m | 3.05 | 5.40 (3.05) | 5.40 | ||||
|
Liftoff weight |
t | 23.073 |
23.073 |
~59.8 |
||||
|
Propellant weight |
t | 20.830 | 20.830 | ~54.0 | ||||
|
Engines (Chambers) |
RL-10C-1-1 | RL-10C-1-1 | RL-10C-X (2) | |||||
|
Propellant |
LH2/LOX | LH2/LOX | LH2/LOX | |||||
|
Total thrust (vac) |
kN | 105.9 | 105.9 | ~212.6 | ||||
|
Specific impulse (vac) |
N*s/kg | 4450 | 4450 | ~4469 | ||||
|
Burn time |
s | 875 | 875 | ~1135 | ||||
|
Total impulse (vac) |
MN*s | 92.7 | 92.7 | 241.3 | ||||
|
Stage 1 |
Name |
CCB | CCB | CCB | ||||
|
Length (+interstage) |
m | 30.48 (33.65) | 30.48 (33.65) | 30.48 (33.65) | ||||
|
Diameter |
m | 5.40 | 5.40 | 5.40 | ||||
|
Liftoff weight |
t | ~399 | ~400 | ~400 | ||||
|
Propellant weight |
t | ~369 | ~369 | ~369 | ||||
|
Engines (Chambers) |
BE-4 (2) | BE-4 (2) | BE-4 (2) | |||||
|
Propellant |
NGL/LOX | NGL/LOX | NGL/LOX | |||||
|
Total thrust (s.l.) |
kN | 4,893.1 | 4,893.1 | 4,893.1 | ||||
|
Specific impulse (s.l.) |
N*s/kg | 3011 | 3011 | 3011 | ||||
|
Burn time |
s | 227 | 227 | 227 | ||||
|
Total impulse (vac) |
MN*s | 1,237.6 | 1,237.6 | 1,237.6 | ||||
|
Booster |
Name |
4 SRB | 6 SRB | |||||
|
Length |
m | 21.97 | 21.97 | |||||
|
Diameter |
m | 1.60 | 1.60 | |||||
|
Liftoff weight |
t | ~200 | ~300 | |||||
|
Propellant weight |
t | 191.96 | 287.94 | |||||
|
Engines (Chambers) |
GEM-63XL | GEM-63XL | ||||||
|
Propellant |
solid HTPB | solid HTPB | ||||||
|
Total thrust (s.l.) |
kN | 5,602 (av.) | 8,403 (av.) | |||||
|
Specific impulse (s.l.) |
N*s/kg | ~2452 | ~2452 | |||||
|
Burn time |
s | 84 | 84 | |||||
|
Total impulse (vac) |
MN*s | 527.1 | 790.6 | |||||