{author}        National Aeronautics and Space Administration

{date}          31-Mar-2005

{description}   KENNEDY SPACE CENTER, FLA. The aft segment of a Solid Rocket
                Booster is transported to the Vehicle Assembly Building (in the
                background). The segment will be mated with other segments for
                use on the launch of Space Shuttle Atlantis on the second Return
                to Flight mission, STS-121. SRBs are used as matched pairs and
                each is made up of four solid rocket motor segments. Two SRBs
                provide the main thrust to lift the Space Shuttle off the pad to
                an altitude of about 150,000 feet. In addition, the two SRBs
                carry the entire weight of the External Tank and orbiter and
                transmit the weight load through their structure to the Mobile
                Launcher Platform. Each booster has a thrust (sea level) of
                approximately 3,300,000 pounds at launch, and provide 71.4
                percent of the thrust at liftoff and during first-stage ascent.

{highres}       3008 x 2000

{highsize}      550407

{hightype}      JPEG

{keywords}      NASA,KSC,Kennedy Space Center

{lowres}        320 x 212

{lowsize}       77727

{lowtype}       GIF

{mediumres}     1024 x 680

{mediumsize}    92424

{mediumtype}    JPEG

{number}        KSC-05PD-0542

{slideres}      120 x 108

{slidesize}     15500

{slidetype}     GIF

{tinyres}       100 x 66

{tinysize}      8288

{tinytype}      GIF

{title}         KSC-05PD-0542

{type}          Image

{end}