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Liquid rocket propellant

The highest specific impulse chemical rockets use liquid propellants (liquid-propellant rockets). They can consist of a single chemical (a monopropellant) or a mix of two chemicals, called bipropellants. Bipropellants can further be divided into two categories; hypergolic propellants, which ignite when the fuel and oxidizer make contact, and…

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Overview

History

Kerosene

Hydrogen

Lithium and fluorine

Methane

Monopropellants

Present use

Table

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Liquid rocket propellant

Nodes157
Edges156
Triples11
Avg. degree1.99
Density0.012739
Components1

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Important terminology

hydrogen rocket propellants engine engines liquid first methalox stage propellant uses development specific fuel kerosene second methane launch impulse rockets

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
propellant additivesinstance ofexcluding minor changes to a specific propellant0.80text
corrosion inhibitorsinstance ofexcluding minor changes to a specific propellant0.80text
or stabilizersinstance ofexcluding minor changes to a specific propellant0.80text
the Atlasinstance ofIt became the propellant for most of the early American rockets and ballistic missiles0.80text
Titan Iinstance ofIt became the propellant for most of the early American rockets and ballistic missiles0.80text
and Thorinstance ofIt became the propellant for most of the early American rockets and ballistic missiles0.80text
Centaurinstance ofwhere there is no refrigeration.In the late 1950s and early 1960s it was adopted for hydrogen-fuelled stages0.80text
Saturn upper stagesinstance ofwhere there is no refrigeration.In the late 1950s and early 1960s it was adopted for hydrogen-fuelled stages0.80text
pressure stabilization of the tanks to reduce weightinstance ofThis extra weight reduces the mass fraction of the stage or requires extraordinary measures0.80text
liquid oxygeninstance ofThe same caution applies to other cryogens0.80text
liquid natural gasinstance ofThe same caution applies to other cryogens0.80text

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