U.S. Space & Rocket Center Site Index
Rocket City Legacy Gallery


This exhibit demonstrates the "star" shape of the Space Shuttle Solid Rocket Booster (SRB) fuel grain. This pattern is formed into the fuel to optimize the surface area which is burned at any one time.

It is my understanding that the grain pattern varies along the length of the SRB, based on the position of the SRB segment, and that the pattern is also varied to modify the thrust during different portions of the the flight.

Time picture taken Sat Jun 19 12:35:36 2004
Location picture taken Rocket City Legacy Exhibit
"Old" Museum
US Space & Rocket Center
Huntsville, AL
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