The Lockheed U-2 (Dragon Lady) is an American single-seat, single-engine, high-altitude, unarmed, reconnaissance aircraft that entered service in 1956. The U-2 is powered by a Pratt and Whitney J75-P-13B turbojet providing a top speed of 692 kmh and a range of more than 4800 km and an endurance of 12 hours. Long, wide, straight wings give the U-2 glider-like characteristics. It can carry a variety of sensors and cameras, is an extremely reliable reconnaissance aircraft. Because of its high altitude mission, the pilot must wear a full pressure suit. The U-2 is capable of collecting multi-sensor photo, electro-optic, infrared and radar imagery, as well as performing other types of reconnaissance functions. However, the aircraft can be a difficult aircraft to fly due to its unusual landing characteristics. Research U-2
U-2 was a German coastal submarine of 250 tons displacement launched in 1935. She had a top speed of 13 knots surfaced, 7 knots submerged, could dive to 50 fathoms and carried a complement of 23. Armaments consisted of one 1 pdr anti-aircraft guns and three 21 inch torpedo tubes. Research U-2
 
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