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A multistage rocket or step rocket is a launch vehicle that uses two or more rocket stages, each of which contains its own engines and propellant. A tandem or serial stage is mounted on top of another stage; a parallel stage is attached alongside another stage. The result is effectively two or more rockets stacked on top of or attached next to each…
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rocket stage stages staging launch boosters mass velocity used two rockets ratio system fuel upper propellant payload initial engine engines
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| initiators | instance of | The mass of the stage transfer hardware | 0.80 | text |
| safe-and-arm devices are very small by comparison | instance of | The mass of the stage transfer hardware | 0.80 | text |
| can be considered negligible.For modern day solid rocket motors | instance of | The mass of the stage transfer hardware | 0.80 | text |
| it is a safe | instance of | The mass of the stage transfer hardware | 0.80 | text |
| reasonable assumption to say that 91 to 94 percent of the total mass is fuel | instance of | The mass of the stage transfer hardware | 0.80 | text |
| hydrogen | instance of | and a low density fuel is required | 0.80 | text |
| Soyuz | instance of | Hot-staging is used on Soviet-era Russian rockets | 0.80 | text |
| Proton-M | instance of | Hot-staging is used on Soviet-era Russian rockets | 0.80 | text |
| GTO or to escape velocity | instance of | These stages are usually tasked with completing orbital injection and accelerating payloads into higher energy orbits | 0.80 | text |
| the Russian Soyuz rocket | instance of | vehicles | 0.80 | text |
| the SpaceX Falcon 9 are assembled horizontally in a processing hangar | instance of | vehicles | 0.80 | text |
| transported horizontally | instance of | vehicles | 0.80 | text |
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