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Forum:	Commercial Space - Military Space
Topic:	[Discuss] Blue Origin New Glenn orbital rocket

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Your Reply: HTML is ON UBB Code is ON Smilies Legend	[QUOTE]Originally posted by Robert Pearlman: [B]Blue Origin quietly changed the design of its New Glenn rocket around the beginning of the year in order to hold to a 2020 first launch and increase the range of orbital missions the rocket can complete, [URL=http://spacenews.com/blue-origin-switches-engines-for-new-glenn-second-stage/]SpaceNews reports[/URL]. <BLOCKQUOTE>[i]Although the company's website still shows New Glenn with a second stage powered by a reignitable version of the BE-4 it is developing to power the main stage of both New Glenn and United Launch Alliance's Vulcan rocket, that configuration is now out of date. A Blue Origin executive told SpaceNews the company is shelving development of a vacuum-optimized version of BE-4 and will instead use vacuum-optimized versions of flight-proven BE-3 engines for New Glenn's second stage and optional third stage. "We've already flown BE-3s, and we were already in the development program for BE-3U as the third stage for New Glenn," said Clay Mowry, Blue Origin's vice president of sales, marketing and customer experience. "It made a lot of sense for us to switch to an architecture where we get there faster for first flight." The BE-3U is the upper stage variant of the liquid hydrogen-fueled BE-3 engine that has powered Blue Origin's reusable New Shepard spacecraft on six suborbital test flights since its 2015 debut.[/i]</BLOCKQUOTE>[/B][/QUOTE]
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