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Two technicians work on a large rocket engine in a workshop. Next to them, the engine undergoes a test firing, emitting a bright flame and smoke in an industrial facility.
Engineering Notebook

Improving on the ‘gold standard’

By Keith Button

September 2024

We’ve all heard the cliché, “if it ain’t broke, don’t fix it.” Aerojet Rocketdyne is happily violating that maxim by creating an additional version of the venerable RL10 upper stage engine, a 60-year-old design that’s pushed some of history’s most storied spacecraft to orbit and beyond. Why is the company confident it will work? Keith Button has the story.

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