The Curtiss P-40 (also called the Tomahawk, Warhawk, and Kittyhawk) was a fighter aircraft that could also be used for attacking things on the ground. It was made by Curtiss. It first flew in 1938 and saw combat during World War II. It was not as fast high up as the German Luftwaffe fighters, but was used a lot in other places. It was used not only the United States Army Air Force, but also a mercenary air force called the "Flying Tigers." They put the mouth of a shark on their P-40s. It could fly to 360 miles per hour. In 1948, the United States Air Force stopped using it.