Paul Allen’s enormous aircraft project has taken a big step toward success. With six Pratt & Whitney engines of the same kind used on a Boeing 747 strapped to its massive fuselage, the engine tests for Vulcan Aerospace’s Stratolaunch is a critical step in the development process. This week, the engines were run for the first time at the company’s development facility in Mojave, California.
Giant Stratolaunch Begins Engine Tests
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