On our RadarThornton Superfast US military plane reaches Mach 20 speed, then crashes (boingboing) August 20, 2011 By Web Master Share FacebookTwitterPinterestWhatsApp John Michael Thornton • Mach 20! Chuck Yeager was such a pussy in hindsight. Web Master Topicsboingboingsuperfast plane Read more Features My City Slicker Family Visited For New Year’s Features Squirrel Speaks Out On No Nut November Features How To Explain The Election Results To Your Senator Features How I Celebrate Mormon Halloween Features How To Win An Argument With Your Girlfriend, As Told By Former President Donald Trump Read More Features My City Slicker Family Visited For New Year’s Features Squirrel Speaks Out On No Nut November Features How To Explain The Election Results To Your Senator Features How I Celebrate Mormon Halloween