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A liquid-propellant rocket or liquid rocket uses a rocket engine burning liquid propellants. (Alternate approaches use gaseous or solid propellants.) Liquids are desirable propellants because they have reasonably high density and their combustion products have high specific impulse (Isp). This allows the volume of the propellant tanks to be relatively low.
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liquid rocket engine engines rockets propellants propellant used fuel combustion chamber oxygen use oxidizer space system pressure also first hydrogen
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| liquid hydrogen or RP-1 | instance of | Bipropellant liquid rockets use a liquid fuel | 0.80 | text |
| and a liquid oxidizer such as liquid oxygen | instance of | Bipropellant liquid rockets use a liquid fuel | 0.80 | text |
| helium to pressurize the propellants | instance of | some designs use a tank of a high-pressure inert gas | 0.80 | text |
| Dream Chaser | instance of | some crew vehicles | 0.80 | text |
| Space Ship Two plan to use hybrid rockets with non-toxic fuel | instance of | some crew vehicles | 0.80 | text |
| oxidizer combinations | instance of | some crew vehicles | 0.80 | text |
| the density of the propellant.The first injectors used on the V-2 created parallel jets of fuel | instance of | the shape of the hole and other details | 0.80 | text |
| oxidizer which then combusted in the chamber | instance of | the shape of the hole and other details | 0.80 | text |
| the F-1 used for the Apollo program had significant issues with oscillations that led to destruction of the engines | instance of | previous engines | 0.80 | text |
| but this was not a problem in the RS-25 due to this design detail.Valentin Glushko invented the centripetal injector in the early 1930s | instance of | previous engines | 0.80 | text |
| and it has been almost universally used in Russian engines | instance of | previous engines | 0.80 | text |
| chugging | instance of | used successfully in the Wasserfall missile.Combustion stabilityTo avoid instabilities | 0.80 | text |
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