Propulsion Athena

      
                                                              Castor 120


Orbus-21D

LLV-1

Stage

Engines

Thrust s.l.

Isp s.l.

Thrust vac

Isp vac

Propellant

Burn time

Flow rate

Total Imp.

kN (av) N*s/kg kN (av) N*s/kg tons s t/s MN*s
1

TU-903

max 2,128.5 2442 max 2,204.0 2725 45.690  56.5 max 0.8716 124.52
ave 1,974.8 ave 2,375.4 ave 0.8087
2

ORBUS-21D

    181.5 2878 9.837 156 0.0631 28.3
 3

O.A.M

    0.89 2206 0.354 890 0.0004 0.78

Athena I (LMLV-1)

Stage

Engines

Thrust s.l.

Isp s.l.

Thrust vac

Isp vac

Propellant

Burn time

Flow rate

Total Imp.

kN (av) N*s/kg kN (av) N*s/kg tons s t/s MN*s
1

Castor 120

max 1,694.0 2481 max 1,868.0 2736 49.006  79.5 max 0.6828 134.07
ave 1,528.9 ave 1,685.9 ave 0.6162
2

ORBUS-21D

    181.5 2878 9.837 156 0.0631 28.3
3

O.A.M

    0.89 2206 0.354 890 0.0004 0.78
(4)

Orion 38

    32.2 2834 0.771 67.7 0.0114 2.18

Athena II

Stage

Engines

Thrust s.l.

Isp s.l.

Thrust vac

Isp vac

Propellant

Burn time

Flow rate

Total Imp.

kN (av) N*s/kg kN (av) N*s/kg tons s t/s MN*s
1

Castor 120

1,528.9 2481 1,685.9 2736 49.006 79.5 0.6162 134.07
2

Castor 120

    1,685.9 2736 49.006 79.5 0.6162 134.07
3

ORBUS-21D

    194.5 2883 9.759 145 0.0675 28.14
4

O.A.M.

    0.89 2206 0.354 890 0.0004 0.78
(5)

Orion 38

    32.2 2834 0.771 67.7 0.0114 2.18

Athena Ic/IIc/IIcS

Stage

Engines

Thrust s.l.

Isp s.l.

Thrust vac

Isp vac

Propellant

Burn time

Flow rate

Total Imp.

kN (av) N*s/kg kN (av) N*s/kg tons s t/s MN*s
Booster (1)

Orion 50SXLG

max 574.7 2388 max 645.0 2680 15.024 68.4 max 0.2407 40.27
ave 524.0 ave 588.0 ave 0.2194
1

Castor 120*

1,528.9 2481 1,685.9 2736 49.006 79.5 0.6162 134.07
2

Castor 120*

    1,685.9 2736 49.006 79.5 0.6162 134.07
3

Castor 30B

    258.3 2892 12.834 144 0.0896 37.13
4

O.A.M.

    0.89 2206 0.354 890 0.0004 0.78

*Option Castor-120XL