Taking one last look at the Newfoundland coast before heading out over the Atlantic Ocean, Charles Lindbergh wondered what the next several hours would hold for him. He had taken off from Long Island’s “Roosevelt Field” at 7:52 that morning and for the next eleven hours he navigated by spotting landmarks and comparing them to his numerous maps and charts. However, that was about to change. Now, in the dark and over the featureless ocean, he would have to rely on the two compasses that his airplane, The Spirit of St. Louis, carried. As well, he would also have to make exact calculations on his charts, because being a few degrees off on this side of the ocean would mean that he would be hundreds of miles off course when he got to the oth...