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  1. Wikipedia
    https://en.wikipedia.org › wiki › Ram_accelerator

    Ram accelerator - Wikipedia

    • A ram accelerator is a device for accelerating projectiles or just a single projectile to extremely high speeds using jet-engine-like propulsion cycles based on ramjet or scramjet combustion processes. It is thought to be possible to achieve non-rocket spacelaunch with this technology. It consists of a long tube (barrel) filled with a mixture of combustible gase… See more

    Description

    In a normal ramjet, air is compressed between a spike-shaped centerbody and an outer cowling, fuel is added and burned, and … See more

    Testing

    Scramjet projectiles were tested in Project HARP in the 1960s. See more

    Advantages

    The chief advantage of a ram accelerator over a conventional gun is its scalability. In a normal gun, maximum pressure is exerted at the time of the charge ignition. As the projectile moves further down the barrel, the … See more

    Uses

    Ram accelerators have been proposed as a cheap method to get payloads into space. Impulsive launched projectiles need some means to circularize their trajectory for orbit insertion, so rockets, such as those designed i… See more

    External links

    • US patent 10132578, Carl Knowlen; Adam Bruckner & Andrew J. Higgins et al., "Baffled-tube ram accelerator", issued 2018-11-20, assigned to University of Washington
    • Ram Accelerator | University of Washington, … See more

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    Description
    Testing
    Advantages
    Uses
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  1. UW Aeronautics and Astronautics Department
    https://www.aa.washington.edu › research › ramaccel

    Ram Accelerator - Aeronautics and Astronautics

     
  2. UW Aeronautics and Astronautics Department
    https://www.aa.washington.edu › research › ramaccel › overview

    Overview - Aeronautics and Astronautics

  3. Wikipedia
    https://en.wikipedia.org › wiki › Non-rocket_spacelaunch

    Non-rocket spacelaunch - Wikipedia

  4. UW Aeronautics and Astronautics Department
    https://www.aa.washington.edu › research › ramaccel › features

    General Features | Aeronautics and Astronautics

  5. Springer
    https://link.springer.com › chapter

    The ram accelerator: overview and state of the art

  6. People also ask
    What is a ram accelerator?
    A ram accelerator is a device for accelerating projectiles or just a single projectile to extremely high speeds using jet-engine -like propulsion cycles based on ramjet or scramjet combustion processes. It is thought to be possible to achieve non-rocket spacelaunch with this technology.

    Ram accelerator - Wikipedia

    en.wikipedia.org
    How does a ram accelerator projectile work?
    As the ram accelerator projectile compresses the fuel-air mixture, it is ignited and the combustion is stabilized at the base of the projectile. The resulting pressure differential generates a prodigious amount of thrust that can accelerate projectiles to in-tube Mach numbers greater than 8.

    Ram accelerator - Wikipedia

    en.wikipedia.org
    Why do Ram accelerators have higher velocities than scramjets?
    Ram accelerators optimized to use supersonic combustion modes can generate even higher velocities (Mach 6-8) due to the ability to combust fuel that is still moving at supersonic speed. Scramjet projectiles were tested in Project HARP in the 1960s. [citation needed]

    Ram accelerator - Wikipedia

    en.wikipedia.org
    What are the advantages of a ram accelerator over a conventional gun?
    The chief advantage of a ram accelerator over a conventional gun is its scalability. In a normal gun, maximum pressure is exerted at the time of the charge ignition.

    Ram accelerator - Wikipedia

    en.wikipedia.org
    How fast can a ram combust?
    As such, the ram can be maintained at optimal speeds of Mach 3–5 (relative to the mixture that it travels through) during its entire acceleration period. Ram accelerators optimized to use supersonic combustion modes can generate even higher velocities (Mach 6-8) due to the ability to combust fuel that is still moving at supersonic speed.

    Ram accelerator - Wikipedia

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  7. Airports Worldwide
    https://www.airports-worldwide.com › articles

    Ram accelerator - airports-worldwide.com

  8. AIAA Aerospace Research Central
    https://arc.aiaa.org › doi › abs

    Ram accelerator - A new chemical method for accelerating …

  9. AIAA Aerospace Research Central
    https://arc.aiaa.org › doi

    Ram Accelerator Operation in Railed and Baffled Tubes

  10. NASA Technical Reports Server (NTRS)
    https://ntrs.nasa.gov › search.jsp

    The ram accelerator - A chemically driven mass launcher

  11. Wikiwand
    https://www.wikiwand.com › en › articles › Ram_accelerator

    Ram accelerator - Wikiwand articles

  12. NASA Technical Reports Server (NTRS)
    https://ntrs.nasa.gov › citations

    Design of a Ram Accelerator mass launch system

  13. Semantic Scholar
    https://www.semanticscholar.org › paper › The-ram...

    The ram accelerator: overview and state of the art

  14. dtic.mil
    https://apps.dtic.mil › sti › tr › pdf
    [PDF]

    Basic and Applied Studies of the RAM Accelerator as a …

  15. Wiley Online Library
    https://onlinelibrary.wiley.com › doi

    Ram Accelerator - Bruckner - Wiley Online Library

  16. AIAA Aerospace Research Central
    https://arc.aiaa.org › doi › pdf

    The ram accelerator - A technology overview | Aerospace …

  17. Academic Dictionaries and Encyclopedias
    https://en-academic.com › dic.nsf › enwiki

    Ram accelerator - Academic Dictionaries and Encyclopedias

  18. AIAA Aerospace Research Central
    https://arc.aiaa.org › doi

    Ram Accelerators: Outstanding Issues and New Directions

  19. Alchetron
    https://alchetron.com › Ram-accelerator

    Ram accelerator - Alchetron, The Free Social Encyclopedia

  20. fandom.com
    https://engineering.fandom.com › wiki › Ramjet

    Ramjet - Engineering | Fandom

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