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Solid Rocket Motors

Four solid rocket boosters strapped onto the common core booster add to the thrust that will be produced by the first stage. Each of these boosters is 64 feet (19.5 meters) long and 61 inches (155 centimeters) in diameter, and delivers about 306,000 pounds (1.36 million newtons) of thrust.

Inside the Vertical Integration Facility at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, technicians using an overhead crane guide the final solid rocket motor into position for mating to the first stage of a United Launch Alliance Atlas V rocket.
Booster Rocket Will Give Atlas V a Boost
With a view taken from inside the Vertical Integration Facility at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, the final solid rocket motor (SRM) hangs in an upright position for mating to a United Launch Alliance Atlas V rocket which will carry NASA's Mars Science Laboratory (MSL) mission.
Atlas V Booster Rocket Soars
At the Vertical Integration Facility at Space Launch Complex 41 on Cape Canaveral Air Force Station in Florida, technicians use a lifting device to elevate a solid rocket motor (SRM) into an upright position for mating to a United Launch Alliance Atlas V rocket which will carry NASA's Mars Science Laboratory (MSL) mission.
Atlas V Booster Rocket

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