The SR-72 “SOB” sounds great in theory (and looks great in the movies). So what are the hurdles keeping it from becoming a reality?
This website stores cookies on your computer. These cookies are used to provide a more personalized experience and to track your whereabouts around our website in compliance with the European General Data Protection Regulation. If you decide to to opt-out of any future tracking, a cookie will be setup in your browser to remember this choice for one year.