Space Launch System (SLS) Solid Rocket Boosters

Space Launch System Solid Rocket Boosters  

Northrop Grumman manufactures the five-segment solid rocket boosters for NASA’s Space Launch System (SLS). These are the largest solid rocket motors ever built and are rated for human flight.

Each motor consists of five rocket motor segments, thrust vector control and an aft exit cone assembly; it is 153 feet long and 12 feet in diameter. The entire booster (including nose cap, frustum, and forward and aft skirts) will be approximately 177 feet long. Of the booster’s total weight of 1.6 million pounds, propellant accounts for 1.5 million pounds.

Northrop Grumman conducts full-scale static tests of its motors to qualify upgrades and to ensure flawless operation. A number of quality inspections are also performed throughout the booster's manufacture, including X-ray, ensuring it will perform exactly as predicted.

The SLS provides a new capability for human exploration beyond Earth orbit. Designed to be flexible for crew or cargo missions, the SLS will be safe, affordable and sustainable, to continue America’s journey of discovery from the unique vantage point of space. The SLS will take astronauts farther into space than ever before, while engaging the U.S. aerospace workforce here at home.

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