Flying at 0.8 to 0.9 Mach will put business travelers in the slow lane in the 21st century, say supersonic business jet (SSBJ) proponents. As a result, Boeing, Dassault and Gulfstream, among other business aircraft manufacturers, have been studying the feasibility of launching an SSBJ for the past several years. An SSBJ, traveling at speeds approaching 2.0 Mach, potentially could shave flight times by almost 50 percent on the most frequently flown long-distance trips. Imagine being ...


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