For most of the years between World War One and World War Two, Jimmy Doolittle was involved in the growth of the airplane industry. He helped test new airplanes. He flew longer and longer distances. He also entered the world-famous air races of the time. During the nineteen twenties and thirties, airplane races were used to test new aircraft designs.
Jimmy Doolittle won three of the most important races, the Schneider Marine Cup, the Bendix Trophy race and the Thompson Trophy race. By now, most Americans knew the name Jimmy Doolittle.
Perhaps Jimmy's most important work during this period involved instrument flying. In the early years of aviation it was almost impossible to fly in bad weather. Many pilots crashed in poor conditions because they became lost. In a heavy fog, they could not tell if they were going right, left, up or down. Many pilots and aviation experts said the problem could not be solved. They said it was impossible to fly in bad weather.
Jimmy Doolittle began working with experts who made flight instruments. These instruments helped tell if the aircraft was going up, going down or turning. The instruments helped a pilot fly straight. Other instruments linked radios to a direction device to help find the landing area.
After ten months of tests, Jimmy Doolittle became the first pilot to fly successfully in poor weather conditions. It was September twenty-fourth, nineteen twenty-nine. It was impossible to see because it was so foggy. He took his airplane off the ground, flew for ten minutes, and then returned to land safely.
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