“Hypersonic airliners are entering [commercial] service”

Created by gwern on 2011-09-25; known on 2030-01-01

• gwern estimated 15% on 2011-09-25
• gwern said “http://www.futuretimeline.net/21stcentury/2030-2039.htm#hypersonic” on 2011-09-25
• gwern said “the one linked design study shows zero signs of being actively developed into something reliable enough for a big airline to” on 2011-09-25
• Robert Kosten estimated 25% on 2011-10-04
• themusicgod1 estimated 50% on 2016-10-09
• pranomostro estimated 10% on 2019-01-01