Ramjet/Scramjet Propulsion on a Vertical Rocket?

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SUMMARY

Utilizing ramjet or scramjet propulsion on a vertical rocket is theoretically possible but currently impractical. Air-breathing propulsion systems like ramjets are effective only during a limited portion of the ascent, making their added weight not justifiable for vertical launches. Engineering efforts have aimed to integrate these systems into single-stage-to-orbit space planes, but significant challenges remain in achieving efficiency and practicality.

PREREQUISITES
  • Understanding of ramjet and scramjet propulsion mechanisms
  • Knowledge of vertical rocket launch dynamics
  • Familiarity with aerospace engineering principles
  • Awareness of single-stage-to-orbit (SSTO) concepts
NEXT STEPS
  • Research the engineering challenges of integrating ramjet propulsion in vertical launches
  • Explore advancements in scramjet technology and their applications
  • Study the dynamics of air-breathing engines during ascent phases
  • Investigate current projects focused on single-stage-to-orbit space planes
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Aerospace engineers, propulsion specialists, and researchers interested in advanced rocket propulsion systems and their applications in vertical launches.

onion3000
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Is it possible (practical/efficient) to utilize ramjet (or scramjet) on a vertical rocket? By this I mean would it be at all practical to make a vertically traveling rocket which partially uses ramjet as a method of propulsion, or is there some property of ramjet propulsion that makes this intrinsically impossible?
 
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It would work but isn't practical at this point. Since air-breathing propulsion would only work for a small slice of the vertical journey, it generally has meant their added dead weight isn't worth the potential benefits. It had been an engineering goal for a while to implement such an idea, though, ideally on a single stage to orbit space plane.
 

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