A Graphite-Epoxy Motor (GEM) is a high-performance, solid rocket motor, used for supplemental thrust on several launch vehicles, including the Boeing Delta II and Delta IV. They are designed to allow launch vehicles to deliver larger payloads to orbit. The name "Graphite-Epoxy Motor" refers specifically to solid motors produced by Alliant Techsystems, although boosters of similar construction are used on other launch vehicles.
Read more about Graphite-Epoxy Motor: Background, Variants, Reliability
Famous quotes containing the word motor:
“We disparage reason.
But all the time it’s what we’re most concerned with.
There’s will as motor and there’s will as brakes.
Reason is, I suppose, the steering gear.”
—Robert Frost (1874–1963)