3D printed parts help end U.S. dependence on Russian rockets

A company working to end American dependency on Russian rockets used 3D printing to prototype its latest development.

Aerojet Rocketdyne’s high-thrust AR1 booster engine can be used for heavy launch vehicles such as the Atlas V. It was commissioned by the Air Force to replace the RD-180, which is built in Russia and used on the Atlas V.

The same company that built the RS-25 engines for the space shuttle, Aerojet Rocketdyne proposed the AR1 to the U.S. government in 2014, arguing that it could be produced in the United States relatively inexpensively. The booster generates an impressive 500,000 pounds-force of thrust at sea level and runs on liquid-oxygen propellants and an oxygen-rich staged combustion kerosene engine.

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