Propulsion Delta-IV

 
       
RS-68



RS-68A

Booster

Versions

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

Delta IV-M+

GEM-60 TVC

 max 1,097.5 2412 max 1,223.5 2689 29.698  90.8 max 0.4549 79.85
ave 788.5 ave 878.7 ave 0.3268

Delta IV-HLV

RS-68

100%

2,949.2 3578 3,314.0 4021 199.65 236 0.8242 801.0

57%

1,681.0

1,889.0

10

0.4698

Delta IV-HLV+

RS-68A

100%

3,122.7 3619 3,503.5 4060 199.65 226 0.8629 809.7

57%

1,779.9

1,997.0

9

0.4919

Stage 1

Versions

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

Delta IV-M

RS-68

100%

2,949.2 3578 3,314.0 4021 199.65 222 0.8242 803.7

57%

1,681.0

1,889.0

36

0.4698

Delta IV-M+

RS-68

100%

2,949.2 3578 3,314.0 4021 199.65 236 0.8242 801.0

57%

1,681.0

1,889.0

10

0.4698

Delta IV-HLV

RS-68

102%

3,008.2

 3578

3,380.3

 4021 199.65

55

0.8406

 802.8

57%

1,681.0 1,889.0 195 0.4698

100%

2,949.2

3,314.0

75

0.8242

Delta IV-HLV+

RS-68A

102%

3,185.2

 3619

3,573.5

 4060 199.65

55

0.8802

 811.2

57%

1,739.9 1,997.0 185 0.4919

100%

3,122.7

3,503.5

70

0.8629

 


         
RL-10B-2-1

Stage 2

Versions

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

Delta IV-S

AJ-10-118K

     43.7 3130 6.004 430.4 0.0139 18.8

Delta IV-M/M+ (4)

RL-10B-2-1

     111.2 4565 20.450 839 0.0244 93.4

Delta IV-H /M+ (5)

RL-10B-2-1

     111.2 4565 27.200 1,116 0.0244 124.2

Delta IV-H /M+ (5)

RL-10C-2

     111.2 4565 27.200 1,116 0.0244 124.2