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Lockheed Martin Astronautics |
Atlas V (401) | Atlas V (411) | Atlas V (421) | Atlas V (431) | ||||||
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Overall |
Operational | from | 21.08.2002 | 20.04.2006 | 11.10.2007 | 11.03.2005 | ||||
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to | 10.11.2021 | 10.02.2020 | 04.08.2022 | 18.12.2016 | |||||
| Orbital flights | 41 (incl. upgrade) | 6 (incl. upgrade) | 11 (incl. upgrade) | 3 (incl. upgrade) | ||||||
| Payload weight | t | GTO | 4.75 | GTO | 5.95 | GTO | 6.80 | GTO | 7.70 | |
| Gross liftoff weight | t | 336.22 | 384.30 | 432.00 | 479.60 | |||||
| Gross propellant weight | t | 304.92 | 347.55 | 390.18 | 432.48 | |||||
| Total length | m | 57.31 | 58.23 | 59.14 | 59.14 | |||||
| Max. diameter (span) | m | |||||||||
| Total liftoff thrust (s.l.) | kN | 3,826 | ||||||||
| Total impulse (vac) | MN*s | 1,033.8 | 1,150.6 | 1,267.3 | 1,384.1 | |||||
|
Fairing |
Total length | m | 12.01/12.93 | 12.93 | 12.93/13.84 | 13.84 | ||||
| Diameter | m | 4.20 | 4.20 | 4.20 | 4.20 | |||||
| Total weight | t | 2.127/2.305 | 2.305 | 2.305/2.487 | 2.487 | |||||
| Stage 2 |
Name |
Cent. D-5 SEC | Cent. D-5 SEC | Cent. D-5 SEC | Cent. D-5 SEC | |||||
| Length (+interstage) | m | 12.84 (12.68) | 12.84 (12.68) | 12.84 (12.68) | 12.84 (11.68) | |||||
| Diameter | m | 3.05 | 3.05 | 3.05 | 3.05 | |||||
| Liftoff weight | t | 23.073 (+1.129) | 23.073 (+1.129) |
23.073 (+1.129) |
23.073 (+1.129) | |||||
| Propellant weight | t | 20.830 | 20.830 | 20.830 | 20.830 | |||||
| Engines (Chambers) | RL-10A-4-2 (1) | RL-10A-4-2 (1) | RL-10A-4-2 (1) | RL-10A-4-2 (1) | ||||||
| Propellant | LH2/LOX | LH2/LOX | LH2/LOX | LH2/LOX | ||||||
| Total thrust (vac) | kN | 97.9 | 97.9 | 97.9 | 97.9 | |||||
| Specific impulse (vac) | N*s/kg | 4378 | 4378 | 4378 | 4378 | |||||
| Burn time | s | 932 | 932 | 932 | 932 | |||||
| Total impulse (vac) | MN*s | 91.2 | 91.2 | 91.2 | 91.2 | |||||
|
Stage 1 |
Name | CCB | CCB | CCB | CCB | |||||
| Length | m | 32.46 | 32.46 | 32.46 | 32.46 | |||||
| Diameter | m | 3.81 (3.05) | 3.81 | 3.81 | 3.81 | |||||
| Liftoff weight | t | 305.143 | 305.143 | 305.143 | 305.143 | |||||
| Propellant weight | t | 284.089 | 284.089 | 284.089 | 284.089 | |||||
| Engines (Chambers) | RD-180 (2) | RD-180 (2) | RD-180 (2) | RD-180 (2) | ||||||
| Propellant | Kerosene/LOX | Kerosene/LOX | Kerosene/LOX | Kerosene/LOX | ||||||
| Total thrust (s.l.) | kN | 3,826.2 | 3,826.2 | 3,826.2 | 3,826.2 | |||||
| Specific impulse (s.l.) | N*s/kg | 3058 | 3058 | 3058 | 3058 | |||||
| Burn time | s | 227 (100%) | 227 (100%) | 227 (100%) | 227 (100%) | |||||
| Total impulse (vac) | MN*s | 942.6 | 942.6 | 942.6 | 942.6 | |||||
|
Booster |
Name | 1 SRB | 2 SRB | 3 SRB | ||||||
| Length | m | 20.42 (17.70) | 20.42 (17.70) | 20.42 (17.70) | ||||||
| Diameter | m | 1.55 | 1.55 | 1.55 | ||||||
| Liftoff weight | t | 46.70 | 93.39 | 140.09 | ||||||
| Propellant weight | t | 42.63 | 85.26 | 127.89 | ||||||
| Engines (Chambers) | Aerojet AJ-60A | Aerojet AJ-60A | Aerojet AJ-60A | |||||||
| Propellant | solid HTPB | solid HTPB | solid HTPB | |||||||
| Total thrust (s.l.) | kN | 1,112.1 (av.) | 2,224.2 (av.) | 3,336.3 (av.) | ||||||
| Specific impulse (s.l.) | N*s/kg | 2447 | 2447 | 2447 | ||||||
| Burn time | s | 93.8 | 93.8 | 93.8 | ||||||
| Total impulse (vac) | MN*s | 116.8 | 233.5 | 350.3 | ||||||
Note: 13.11.2020 and 07.12.2021 first time new GEM-63 boosters |