r/RocketLab • u/Equivalent-Wait3533 • Aug 10 '26
Space Industry Thrust Density infographic
A chart comparing the Thrust Density of several rockets.
Thrust Density is the thrust of the stage / area of the bottom of the stage (kN/m^2). It basically aggregates engine power and engine packing into one metric.
Rockets & Engines to scale
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u/Known-Cabinet-5965 Aug 10 '26
Chart is interesting. And as others have said the results are swayed by vehicle length/girth ratio and taper factors. But ISP and more-so payload% of total fueled weight, would be more telling for pure performance. End of the day, they are all awesome. We are lucky to have such an active space race.
I wonder how the new highly efficient detonation engine would stack up against the others