Aerojet Rocketdyne has finished its 100th AJ60 rocket motor for United Launch Alliance’s Atlas V launch vehicle.
Aerojet said Monday 87 AJ60Â solid rocket boosters have been used in 24 Atlas V missions since it won the contract from the Boeing–Lockheed Martin joint venture in 1999.
AJ60 is a 67-foot long wound composite SRB designed to carry over 90,000 pounds of propellant and produce more than 375 pounds of launch thrust.
Aerojet Rocketdyne built and delivered the first SRBs for the Atlas V mission that launched the Rainbow 1 communications satellite into space in 2003.