Stage 1

Stage 2

Stage3

 

Saturn V

LOX-RP-1

Isp=264

6,900 KN thrust

5 engines.

LOX-LH2

Isp=425

1,023 KN

5 engines

LOX/LH2

890 KN

Isp=426

One engine

 

Atlas II AS

2 Rocketdyne engines

1.84 MN thrust

Isp=263

 

1 rocketdyne

thrust=269 KN

Isp=220

4 thiokol castor IVR SRMís

thrust= 433 KN

Isp=229

 

Centaur upper stage

2 pratt&Whitney

185 KN

Isp=449

1st engine = 5 minutes

2nd engine = 2 minutes

Atlas III

Atlas V EELV

RD-180

3,820 kN

311 sec

 

 

 

Zenit

 

11D-513

LOX-RP

78,140 KN

342 sec

 

 

Russian N-1M

 

 

11D-57

LOX-LH2

392 KN

456 sec

 

Aerospike

(Boeing)

XRS-2200 (X-33)

LOX-LH2

907.6 KN

339 sec, 436 sec (vac)