Engines Atlas V


    
Pratt&Whitney/Energomash RD-180


   
RL-10A-4-2

 Atlas V 400, 500

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 s t/s MN*s
SRB

Aerojet-73F

 1,110.0 (av.) 2452 1,240.0 (av.) 2739 42.55 94 0.4527 116.5
CCB RD-180

 100%

 3,829.1 3053 4,155.2 3313 284.089 226.5 1.2543 941.2
D-3B (SEC) RL-10A-4-2     99.2 4418 20.830 927 0.0225 92.0
D-3B (DEC) RL-10A-4-2     198.4 4418 20.830 464 0.0449 92.0

Atlas V HLV

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 s t/s MN*s
CCB (add.) RD-180

 100%

 3,829.1 3053 4,155.2 3313 284.089 226.5 1.2543 941.2
CCB RD-180

 100%

 3,829.1 3053 4,155.2 3313 284.089 226.5 1.2543 941.2
D-3B (SEC) RL-10A-4-2     99.2 4418 20.830 927 0.0225 92.0
D-3B (DEC) RL-10A-4-2     198.4 4418 20.830 464 0.0449 92.0