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General Discussion => Q&A Section => Topic started by: JoeFromRIUSA on 05/22/2023 10:13 pm

Title: Which Fuel Combination Had The Highest Specific Impulse?
Post by: JoeFromRIUSA on 05/22/2023 10:13 pm

UDHM/N204 or Lox/RP-1

Title: Re: Which Fuel Combination Had The Highest Specific Impulse?
Post by: AllenB on 05/22/2023 10:28 pm

The first reasonable looking source I found (https://www.researchgate.net/figure/Characteristic-data-of-typical-liquid-propellants_tbl1_225022069) gives the following:

LOX/RP-1: 358s
N2O4/UDMH: 342s

Of course these will vary with O/F ratio, pressure, and other factors but this ought to be a decent comparison.