They were in a two-man race to break the sound barrier. It was October 1947, a time before high-speed digital computers, when predictions of what would happen to fighter planes at such speeds were nebulous. Chuck Yeager and George Welch, two great fighter pilots from World War II, were about to explore the unknown in the bright blue sky over the Mojave Desert. Aces Wild: The Race for Mach 1 is the story of these two courageous men who dueled...