Solid rocket booster
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A solid rocket booster device is used to provide the main thrust in spacecraft launches from the launchpad up to an altitude of about 45 kilometres. The NASA Space Shuttle uses two.
See also
External link
- NASA website about the solid rocket booster (http://science.ksc.nasa.gov/shuttle/technology/sts-newsref/srb.html#srb)ja:固体ロケットブースタ