LOS ANGELES (AP) — Robert A. "Bob" Hoover, a World War II fighter pilot who became an aviation legend for his flying skills in testing aircraft and demonstrating their capabilities in air shows, has died at age 94. When the National Air and Space Museum conferred its highest honor on Hoover in 2007, the museum noted that Jimmy Doolittle, leader of the famed 1942 bomber raid on Japan, had once described Hoover as "the greatest stick-and-rudder man that ever lived." Early U.S.