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Sat, Jul 09, 2022

Goodbye, Atlas. Hello, Vulcan

United Launch Alliance Readies for New Launch Vehicle

United Launch Alliance (ULA)—the Boeing/Lockheed joint-venture that provides space launch services to the U.S. Department of Defense, NASA, and other major players in the space industry—expects the first flight of its Vulcan Centaur rocket to take place by the end of 2022.

The Vulcan Centaur will replace ULA’s Atlas-5 launch vehicle—a twenty-year old Lockheed Martin design and the oldest active American rocket.

Each Atlas-5 comprises two main stages, the first of which is powered by a Russian RD-180 engine. The RD-180 is being phased out on account of the national security implications inherent its being reliant on foreign parts—which became a concern subsequent the U.S.’s and Russia’s disagreement over Ukrainian sovereignty. 

Provided preparations proceed apace, the partially reusable Vulcan Centaur’s inaugural mission will see it depart from Space Launch Complex-41 at Cape Canaveral Space Force Station carrying Astrobotic’s Peregrine lunar lander—an autonomous, robotic vehicle capable of delivering payloads of up to 265-kilograms to the lunar surface with a target accuracy of one-hundred meters. 

 

The Vulcan Centaur was to have launched in 2020, but the program has been delayed by the rocky development of Blue Origin’s BE-4 rocket engine (pictured)—which burns methane and is more powerful than the main engines that powered the space shuttle. ULA’s optimism notwithstanding, space industry insiders believe it’s unlikely that Kent, Washington-based Blue Origin will deliver the new engines before 2023.

Gary L. Wentz Jr., ULA’s vice president of government and commercial programs, asserts ULA has in its possession a number of the Russian-made RD-180 sufficient to complete the Atlas-5’s planned missions. Mister Wentz states Atlas 5 flights will wind-down as Vulcan Centaur launches spool-up. At present, Atlas-5 operations are slated to continue into 2024.

Space Force Col. Erin Gulden shares Mr. Wentz’s outlook, stating of the transition from the Atlas 5 to the Vulcan Centaur, “from the Space Force’s perspective, we don’t see any issues or concerns at this point with a gap in capability or ability to launch.”  

The Space Force’s first launch on a Vulcan Centaur is planned for late 2023.

FMI: www.ulalaunch.com

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