ANTARES 110, 120, 130, 230     -     Vehicle use: Cygnus

American orbital launch vehicle. The Antares launch system is a two-stage vehicle (with optional third stage), designed by Orbital ATK, that provides launch capability to low Earth orbit for payloads weighing up to 8,000 kg. Antares’ first stage is powered by two RD-181 engines burning liquid oxygen and kerosene, and the second stage is powered by the Orbital ATK CASTOR® 30XL solid motor (CASTOR 120 heritage).

source: http://www.northropgrumman.com/Capabilities/Antares/Pages/default.aspx

Variant

All variants

110

120

130

230

230+

Launches

14

2

2

1

5

4

Failures

1

0

0

1

0

0

Realized

0.93

1.00

1.00

0.00

1.00

1.00

Predicted

0.88

0.75

0.75

0.33

0.86

0.83

50

51

53

52

55

56

54

57

58

59

60

61

63

62

64

65

67

66

69

68

70

71

72

73

74

75

77

76

79

78

81

80

83

82

85

84

86

87

88

89

90

91

93

92

95

94

96

97

99

00

98

01

02

03

04

07

05

06

09

08

11

10

13

12

15

14

16

17

18

19

20

21

22

23

24

0.83

0.75

0.86

0.78

0.91

0.85

0.89

0.82

0.92

0.87

0.93

0.88

1.00

0.75

0.80

0.71

Reaized Rate

Predicted Rate