Lockheed U-2

The Lockheed U-2R/TR-1 in flight
Type	High-altitude Reconnaissance
Manufacturer	Lockheed Skunk Works
Designed by	"Kelly" Johnson
Maiden flight	August 1955
Introduction	1957
Primary user	United States Air Force
Number built	about 86 airframes

The Lockheed U-2, nicknamed Dragon Lady, is a single-seat, single-engine, high-altitude aircraft flown by the United States Air Force. It provides day and night, high-altitude (70,000 ft, 21,000 m plus), all-weather surveillance. The aircraft is also used for electronic sensor research and development, satellite calibration, and satellite data validation.

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SR-71 Blackbird

SR-71 "Blackbird"
Type	Strategic Reconnaissance
Manufacturer	Lockheed Skunk Works
Designed by	"Kelly" Johnson
Maiden flight	22 December 1964
Introduced	1966
Retired	1998
Primary users	United States Air Force NASA, CIA
Number built	32
Developed from	A-12 OXCART

The Lockheed SR-71 was an advanced, long-range, Mach 3 strategic reconnaissance aircraft developed from the Lockheed YF-12A and A-12 aircraft by the Lockheed Skunk Works. The SR-71 was unofficially named the Blackbird; its crews often called it the Sled, or the Habu ("snake"). The SR-71 line was in service from 1964 to 1998. Clarence "Kelly" Johnson was the man behind many of the design's advanced concepts. The SR-71 was one of the first aircraft to be shaped to reduce radar cross section. However, the aircraft was not stealthy and still had a large enough radar signature to be tracked by contemporary systems. The aircraft's defense was its high speed and operating altitude; if a surface-to-air missile launch was detected, the standard evasive action was to simply accelerate. Thirteen aircraft are known to have been destroyed, all for non-combat related reasons.

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F-22 Raptor

The F-22 Raptor is a fifth generation stealth fighter aircraft. It was originally envisioned as an air superiority fighter for use against the Soviet Air Force, but is equipped for ground attack, electronic warfare and signals intelligence roles as well. Faced with a protracted development period, the prototype aircraft was designated YF-22 and, as F/A-22 during the three years before formally entering United States Air Force service in December 2005 as the F-22A. Lockheed Martin Aeronautics is the prime contractor and is responsible for the majority of the airframe, weapon systems and final assembly of the F-22. Along with Lockheed Martin, partner Boeing Integrated Defense Systems provides the wings, aft fuselage, avionics integration, and all of the pilot and maintenance training systems.

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