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- http://www.astronautix.com/lvs/ares.htm :
- masses:
- 625000 s1
- 787700 s2
- 172000 s3
- Original launch:
- 1584700 s1+s2+s3
- 959700 s2+s3
- Modified launch:
- 1422000 s1+s1+s3
- 797000 s1+s3
- https://www.nasa.gov/pdf/354470main_aresIX_fs_may09.pdf :
- Peak speed = dv = Mach 4.7 = 1.6km/s
- (actually higher, due to losses, but let's run with it; better to underestimate than overestimate.)
- Plugging standard launch into http://www.quantumg.net/rocketeq.html
- s1+s2+s3 -> s2+s3 @ 1.6km/s
- ISp = 325.4 s
- Plugging modified launch:
- s1+s1+s3 -> s1+s3 @ 325.4
- dv = 184
- s1+s3 -> s3 @ 325.4
- dv = 4.9
- s1 -> 50 tons @ @ 325.4
- dv = 3.9
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