Stratolaunch’s rocket preburner hits full power

Stratolaunch preburner test

The preburner for Stratolaunch’s PGA rocket engine blazes during a hot-fire test. (Stratolaunch via Twitter)

Chalk up another milestone for Stratolaunch Systems’ rocket engine development effort: The Seattle-based space company founded by late Microsoft co-founder Paul Allen says it ramped up the preburner for its PGA rocket engine to full power this week during hot-fire tests.

Stratolaunch’s 3D-printed preburner, a key component that typically begins a rocket engine’s combustion process, had its first hot firing less than a month ago at NASA’s Stennis Space Center in Mississippi. And just a year ago, the hardware was merely a twinkle in the eye of Stratolaunch’s engineers.

“Per public records, this is the fastest preburner development in U.S. history,” Hanna Steplewska Kubiak, Stratolaunch’s vice president of business development,  tweeted.

Get the full story on GeekWire.

About Alan Boyle

Award-winning science writer, creator of Cosmic Log, author of "The Case for Pluto: How a Little Planet Made a Big Difference," president of the Council for the Advancement of Science Writing. Check out "About Alan Boyle" for more fun facts.
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