Download or read book XB-70 Valkerie Pilot's Flight Operating Instructions written by Air Force and published by Lulu.com. This book was released on 2008-04-01 with total page 653 pages. Available in PDF, EPUB and Kindle. Book excerpt: The XB-70 Valkyrie was an aircraft ahead of its time that challenged the known concepts of the flight envelope. Originally printed by NASA and the Air Force, this handbook taught pilots everything they needed to know before entering the cockpit.