Bell Aircraft was an American aerospace manufacturer founded in 1935 by Lawrence Bell. The company became known for producing military aircraft during World War II, including the famous Bell P-59 Airacomet, the first American jet fighter. After the war, Bell Aircraft expanded into helicopter production, creating models like the Bell 47, which became widely used in both military and civilian applications. The company played a significant role in the development of advanced aerospace technologies and contributed to the U.S. space program, including the Bell X-1, which was the first aircraft to break the sound barrier.