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  1. Wikipedia
    https://en.wikipedia.org/wiki/Graphite-Epoxy_Motor

    Graphite-Epoxy Motor - Wikipedia

    • The Graphite-Epoxy Motor (GEM) is a family of solid rocket boosters developed in the late 1980s and used since 1990. GEM motors are manufactured with carbon-fibre-reinforced polymer casings and a fuel consisting of HTPB-bound ammonium perchlorate composite propellant. GEM is produced by Northrop Grumman Space Systems. GEM boosters are us… See more

    Variants

    The GEM 63 was developed by Orbital ATK as a low-cost drop-in replacement for the Aerojet Rocketdyne
    The … See more

    Gallery

    • A GEM 46 motor prior to mating to a Delta II 7925H
    • Technicians prepare a GEM 46 booster
    • GEM 40 booster is towed to the integration facility … See more

    Graphite-Epoxy Motor - Wikipedia
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    Graphite-Epoxy Motor — Wikipédia
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  1. Wikipedia
    https://nl.wikipedia.org/wiki/Graphite-Epoxy_Motor

    Graphite-Epoxy Motor - Wikipedia

  2. Wikipédia
    https://fr.wikipedia.org/wiki/Graphite-Epoxy_Motor

    Graphite-Epoxy Motor — Wikipédia

  3. WikiMili
    https://wikimili.com/en/Graphite-Epoxy_Motor

    Graphite-Epoxy Motor - WikiMili, The Best Wikipedia Reader

  4. Wikipedia
    https://en.wikipedia.org/wiki/Alliant_Te…

    Alliant Techsystems - Wikipedia

    The Graphite-Epoxy Motor (GEM) is a solid rocket motor produced by ATK using epoxy composite casing. GEMs are used as boosters for the Delta II, Delta III, and Delta IV launch vehicles. The use of composite materials allows for …

  5. Cape Canaveral Space Force Museum
    https://ccspacemuseum.org/artifacts/delt…

    DELTA GRAPHITE EPOXY MOTOR (GEM)

    Sometimes called a solid rocket “strap-on,” the graphite epoxy motor (GEM) was used to augment launch thrust for the Delta rocket. This early version of a GEM was normally used in a group of three evenly-spaced around the base of the …

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  6. Northrop Grumman
    https://www.northropgrumman.com/sp…

    Commercial Rocket Motors - Northrop Grumman

    Northrop Grumman began developing the Graphite Epoxy Motor (GEM) in the early 1980s with the GEM 40 to increase launch capability for the Delta II launch vehicle, followed by the GEM 46, used on the Delta III and Delta II Heavy, and …

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  7. DSIAC
    https://dsiac.org/articles/historical-overvi…

    Historical Overview of HTPB The Military’s Preferred …

    Nov 2, 2019 · Combined with a peroxide oxidizer, the unique Dreamchaser spaceplane uses an HTPB hybrid rocket motor. One of the more exotic uses is in a hybrid rocket developed by NAMMO of Norway for a land speeder that …

  8. infogalactic.com
    https://infogalactic.com/info/Graphite-Epoxy_Motor

    Graphite-Epoxy Motor - Infogalactic: the planetary knowledge core

  9. Joint Forces
    https://www.joint-forces.com/space-and …

    Northrop Grumman GEM 63XL Solid Rocket Boosters

    Jan 5, 2024 · Using virtual reality and monolithic designs, meaning manufactured and cast as a single piece, Northrop Grumman’s 63-inch diameter, extended length Graphite Epoxy Motor (GEM 63XL) solid rocket booster (SRB) will …

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