Russia's new SHLV plan

[regex]

39 minutes ago, PB666 said:

Still low

That's because you're not converting your units. According to the URM-2V page the engineers eventually settled on two RD-0150 engines that put out 45 tons of thrust each. That's 90 tons of force, and after some snooping elsewhere on the site, where they clearly use kgf, we can assume they mean metric tons of force. If you convert that to kN you end up with a stage using some 880kN of engines with 462 isp, with a low end (one 40 ton engine) of 390kN and a high end (two 80 ton engines) of 1570kN,

Edited November 21, 2017 by regex

[PB666]

3 minutes ago, regex said:

That's because you're not converting your units. According to the URM-2V page the engineers eventually settled on two RD-0150 engines that put out 45 tons of thrust each. That's 90 tons of force, and after some snooping elsewhere on the site, where they clearly use kgf, we can assume they mean metric tons of force. If you convert that to kN you end up with a stage using some 880kN of engines with 462 isp, with a low end (one 40 ton engine) of 390kN and a high end (two 80 ton engines) of 1570kN,

what, ton feet, who uses ton-feet as a thrust measurement (excluding backwards US government workers).

[regex]

2 minutes ago, PB666 said:

excluding backwards US government workers

It's almost like you're reading reports put together from a government source.

Regardless, convert your units.

[PB666]

7 minutes ago, regex said:

It's almost like you're reading reports put together from a government source.

Regardless, convert your units.

It must be metric weight. 40 Mg * 0.00981 N/g = 390,000;  77 Mg * 0.00981 N/g =760,000 N (rounded to precision).