Propulsion  Ares I (CLV) & Ares V (CaLV)



RSRM nozzle



RS-68B


  
J-2X

 Ares I (2008)

Stage

Engines

Thrust s.l.

Isp s.l.

Thrust vac

Isp vac

Propellant

Burn time

Flow rate

Total Imp

kN N*s/kg kN N*s/kg tons sec t/s MN*s
1  RSRM (5-segments) max 16,201.5 2373 max 17,882.0 2619 647.653 131.9 max 6.8269 1,696.42
ave 11,651.1 ave 12,859.6 ave 4.9095
2  J-2X (1)     1,307.5 4393 137.08 460.6 0.2976 602.2

 Ares V (2008)

Stage

Engines

Thrust s.l.

Isp s.l.

Thrust vac

Isp vac

Propellant

Burn time

Flow rate

Total Imp

kN N*s/kg kN (max) N*s/kg tons sec t/s MN*s
Booster  RSRM (5.5 segments) max 16,651.0 2373 max 18,371.5 2618 711.157 133 max 7.0164 1,862.07
ave 12,689.6 ave 14,000.5 ave 5.3470
1  RS-68B (6) 18,976.2 3657 21,271.8 4099 1.587.37 305.9 5.1894 6,506.6
2  J-2X (1)     1,307.5 4393 251.84 846.1 0.2976 1,106.4

Note: Data of RSRM are calculated