ToughSF on Twitter: "A liquid fuel ramrocket can reach Isp double that of even the best hydrolox propellants. It is very effective when used to accelerate a spaceplane through the atmosphere. However,
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ToughSF on Twitter: "A liquid fuel ramrocket can reach Isp double that of even the best hydrolox propellants. It is very effective when used to accelerate a spaceplane through the atmosphere. However,
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