All covered in gory detail in "Flying the SR-71 Blackbird: In the Cockpit on a Secret Operational Mission <http://www.amazon.com/Flying-SR-71-Blackbird-Cockpit-Operational-ebook/dp/B004NNUY7O/ref=sr_1_5?s=books&ie=UTF8&qid=1419108990&sr=1-5&keywords=sr-71>" by Richard H. Graham <http://www.amazon.com/Richard-H.-Graham/e/B001IO9Q8E/ref=sr_ntt_srch_lnk_5?qid=1419108990&sr=1-5>
Amen to that. On Sat, Dec 20, 2014 at 8:47 PM, Scott Ritchey via Mercedes < mercedes@okiebenz.com> wrote: > As shown in the video, pressure recovery at the inlet was critical to > generating thrust. If the analog computer burped and misplaced the inlet > spike, the resulting drop in thrust was dramatic. This event was called an > inlet unstart. The resulting violent yaw motion was the faster than human > reflexes. In the early days, the SR yaw autopilot had limited authority > and > an unstart produced extremely violent motion at the cockpit (which was way > forward at the end of a long moment arm). I believe at least one SR > disintegrated inflight when the yaw from an unstart exceeded aircraft > structural limits. Later in the program, better flight and engine controls > mitigated the unstart problem. > All covered in gory detail in "Flying the SR-71 Blackbird: In the Cockpit on a Secret Operational Mission <http://www.amazon.com/Flying-SR-71-Blackbird-Cockpit-Operational-ebook/dp/B004NNUY7O/ref=sr_1_5?s=books&ie=UTF8&qid=1419108990&sr=1-5&keywords=sr-71>" by Richard H. Graham <http://www.amazon.com/Richard-H.-Graham/e/B001IO9Q8E/ref=sr_ntt_srch_lnk_5?qid=1419108990&sr=1-5> , including the politics that ended the program. I highly recommend reading this if you have any interest in the SR-71 and the people involved in it. > > The SR stands as a tribute to the men (and women) who built and flew it. > Those folks knew that anything worthwhile involved risk. > Amen to that. > Scott > > -- OK Don NSA: The only branch of government that actually listens to US citizens! "There are three kinds of men: The ones that learns by reading. The few who learn by observation. The rest of them have to pee on the electric fence for themselves." WILL ROGERS, *The Manly Wisdom of Will Rogers* 2013 F150, 18 mpg 2012 Passat TDI DSG, 44 mpg 1957 C182A, 12 mpg - but at 150 mph! _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.
