Known as the Dragon Lady, the U-2 is a high-altitude intelligence, surveillance and reconnaissance (ISR) aircraft. First flown in 1955, the U-2 has been steadily upgraded and has been in service for over 50 years. The U-2 is designed to operate at 70,000 feet or more. It carries a wide range of sensors and cameras to gather a multitude of intelligence information. The U-2S version features a redesigned airframe being enlarged nearly 30%. It has increased fuel capacity and features under-wing pods. The U-2 remains the most capable and reliable ISR platform flying today - manned or unmanned.