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Blue Origin changes engines in New Glenn second stage
Posted: Sun, Apr 1, 2018, 9:38 AM ET (1338 GMT)
Blue Origin has changed one part of the design of its New Glenn orbital rocket. The company quietly tweaked the design of the large rocket, replacing the single vacuum-optimized BE-4 engine in its second stage with two BE-3U engines. A company executive said that change eliminated the need to develop the vacuum-optimized BE-4 alongside the standard version of the BE-4 that will be used in the rocket's first stage. The BE-3U, based on the BE-3 currently used on the company's New Shepard suborbital vehicle, was already in development for an optional third stage of the New Glenn.
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