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Though he released few details, a Blue Origin company official noted at a conference last week that the company has been continuing its tests of the BE-4 engine.
“We’re getting longer duration burn times. We’re going though validating the turbomachinery very closely,” said Jim Centore, group lead for orbital mission operations at Blue Origin, during a panel discussion on launch systems at the conference. Centore didn’t disclose many details about those tests, such as thrust levels or the burn times, either of individual tests or cumulatively. “We’re continuing to make good progress,” he said. “We’ll continue that for the next several months.”
The BE-4 is the linchpin for numerous other future rockets. Blue Origin wants to use it for building its New Glenn rocket. ULA is considering it as the first stage engine for its Vulcan rocket. In both cases, design and construction of the rockets themselves can’t really proceed until the engine is locked down.