The U.S. did not become the world's foremost military air power by accident. The learning curve—World War I, World War II, the Korean War, the Vietnam War, the Gulf War, and more recently the war on terror—has been steep. While climbing this curve, the U.S. has not only produced superior military aircraft in greater numbers than its foes, but has—in due course—out-trained them, too. This book provides a comprehensive historical survey of U.S. military training aircraft, including technical specifications, drawings and photographs of each type of fixed and rotary-wing design used over a 98-year period to accomplish the first step of the learning process: the training of pilots and aircrews.