Both Ramjets and Scramjets are air-breathing jet engines that rely on forward motion to compress incoming air (ram effect). The key distinction lies in the speed at which the airflow passes through the combustion chamber. Ramjets slow the incoming supersonic air to subsonic speeds before combustion. Scramjets, designed for much higher flight speeds (hypersonic), allow the air to remain supersonic throughout the combustion process.
What is the difference between Ramjet and Scramjet engines used for propulsion?
Asked in GPSC Prelims CSP 2 2022 · Topic: Hypersonic Technology and Advanced Aeronautics (Scramjet and Advanced Propulsion Systems (Ramjets, Combined Cycle Engines))
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Answer: B. In ramjet engines combustion is at subsonic speeds while in scramjet it is at supersonic speeds.
Read the notes: Hypersonic Technology and Advanced Aeronautics →
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