WASHINGTON — 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. 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to power the main stage of both New Glenn and United Launch Alliance's Vulcan rocket, that configuration is now out of date.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. |
No comments:
Post a Comment