Cheaper space launch $500/kg or less: Ram accelerator, magnetic launch and plasma hypersonic | NextBigFuture.com
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,
Analysis of rocket, ram-jet, and turbojet engines for supersonic propulsion of long-range missiles 1: rocket-engine performance - UNT Digital Library
Ramjet - Wikipedia
What is the difference between "Air-augmented rocket propulsion" and "integral rocket-ramjet propulsion"? - Space Exploration Stack Exchange
Power Plate Spare Stamping Metal Parts for RAM Rocket - China Custom Welded Assembly Parts, Metal Frame Welding Fabrication | Made-in-China.com
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,
Baghdad Green Zone Rocket Attack: Watch C-RAM System Retaliate