|
Orbital Sciences Corp./U.S.A.F. |
ARPA-Taurus |
Taurus-G |
Taurus-XL |
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|
Overall Vehicle |
Operational | from | 13.03.1994 | 10.02.98 | 20.05.2004 | |||
| to | 31.10.2017 | |||||||
| Orbital flights | 3 | 3 | 4 | |||||
| Payload weight | t | LPEO | 1.160 | LPEO | 1.420 | LPEO | 1.565 | |
| Gross liftoff weight | t | 69.00 | 72.70 | 76.95 | ||||
| Gross propellant weight | t | 61.64 | 64.96 | 68.73 | ||||
| Total length | m | 28.18 | 29.07 | 31.88 | ||||
| Max. diameter (span) | m | 2.36 | 2.36 | 2.36 | ||||
| Total liftoff thrust (s.l.) | kN | 2,128.5 | 1,694 | 1,694 | ||||
| Total impulse (vac) | MN*s | 169.5 | 179.1 | 189.6 | ||||
|
Fairing |
Total length | m | 5.18 | 5.18 / 7.01 | 5.18 / 7.01 | |||
| Diameter | m | 1.60 | 1.60 / 2.30 | 1.60 / 2.30 | ||||
| Total weight | t | 0.360 | 0.360 / 0.400 | 0.360 / 0.400 | ||||
|
Stage 4 |
Name |
Orion 38 |
Orion 38 | Orion 38 | ||||
| Length | m | 1.34 | 1.34 | 1.34 | ||||
| Diameter | m | 0.96 | 0.96 | 0.96 | ||||
| Liftoff weight | t | 0.875 | 0.875 | 0.875 | ||||
| Propellant weight | t | 0.771 | 0.771 | 0.771 | ||||
| Engines | ATK | ATK | ATK | |||||
| Propellant | solid HTPB | solid HTPB | solid HTPB | |||||
| Total thrust (vac) | kN | 32.2 (av) | 32.2 (av) | 32.2 (av) | ||||
| Specific impulse (vac) | N*s/kg | 2834 | 2834 | 2834 | ||||
| Burn time | s | 67.7 | 67.7 | 67.7 | ||||
| Total impulse (vac) | MN*s | 2.18 | 2.18 | 2.18 | ||||
| Stage 3 |
Name |
Orion 50T | Orion 50T | Orion 50XLT | ||||
| Length | m | 3.60 (2.44) | 3.60 (2.44) | 4.02 (2.86) | ||||
| Diameter | m | 1.27 | 1.27 | 1.27 | ||||
| Liftoff weight | t | 3.379 | 3.379 | 4.331 | ||||
| Propellant weight | t | 3.025 | 3.025 | 3.924 | ||||
| Engines | ATK | ATK | ATK | |||||
| Propellant |
solid HTPB |
solid HTPB |
solid HTPB |
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| Total thrust (vac) | kN | 114.6 (av) | 114.6 (av) | 160.6 (av) | ||||
| Specific impulse (vac) | N*s/kg | 2865 | 2865 | 2855 | ||||
| Burn time | s | 75.6 | 75.6 | 69.7 | ||||
| Total impulse (vac) | MN*s | 8.7 | 8.7 | 11.2 | ||||
|
Stage 2 |
Name | Orion 50ST | Orion 50ST | Orion 50SXLT | ||||
| Length | m | 8.40 (8.60) | 8.40 (8.60) | 8.96 (9.16) | ||||
| Diameter | m | 1.27 | 1.27 | 1.27 | ||||
| Liftoff weight | t | 13.242 | 13.242 | 16.356 | ||||
| Propellant weight | t | 12.157 | 12.157 | 15.024 | ||||
| Engines | ATK | ATK | ATK | |||||
| Propellant |
solid HTPB |
solid HTPB |
solid HTPB |
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| Total thrust (vac) | kN | 454.4 (av) | 454.4 (av) | 614.9 (av) | ||||
| Specific impulse (vac) | N*s/kg | 2809 | 2809 | 2803 | ||||
| Burn time | s | 75.0 | 75.0 | 68.4 | ||||
| Total impulse (vac) | MN*s | 34.1 | 34.1 | 42.1 | ||||
|
Stage 1 |
Name | Peacekeeper | Castor 120 | Castor 120 | ||||
| Length | m | 11.00 (8.13) | 11.89 (9.02) | 11.89 (9.02) | ||||
| Diameter | m | 2.34 | 2.36 | 2.36 | ||||
| Liftoff weight | t | 50.00 | 53.40 | 53.40 | ||||
| Propellant weight | t | 45.69 | 49.01 | 49.01 | ||||
| Engines | Thiokol TU-903 | Thiokol | Thiokol | |||||
| Propellant | solid HTPB | solid HTPB | solid HTPB | |||||
| Total thrust (s.l.) | kN | 2,128.5 (max) | 1,694 (max) | 1,694 (max) | ||||
| Specific impulse (s.l.) | Ns/kg | 2442 | 2481 | 2481 | ||||
| Burning time | s | 56.5 | 79.5 | 79.5 | ||||
| Total impulse (vac) | MN*s | 124.5 | 134.1 | 134.1 | ||||