The F-100 Super Sabre was the world's first production aircraft capable of exceeding the speed of sound in level flight. The "Hun" served with the US Air Force extensively during the Vietnam War. The four units equipped with the Super Sabre flew more sorties during the war than 15,000 P-51 Mustangs flew during WWII. They were the longest serving US fighter bomber in the war and were used as MiG CAP for 105 Thunderchiefs, Misty FAC, Wild Weasel and close air support roles. The F-100 truly earned its reputation as one of the great airplanes of the era.