During the 20th century, airplane design was driven by the mantra of “flying faster and higher.” Starting with the historic first flight of the Wright Flyer on December 17, 1903, aeronautical engineers focused on the design of new airplanes to achieve ever-increasing speeds and altitudes. Just 44 years later, on October 14, 1947, Capt. Chuck   <a href="http://blog.nasm.si.edu/aviation/the-x-15/">...Continue Reading</a>