| 词条 | Northrop N-204 | |||||||||||||||||
| 释义 |
The Northrop N-204 was a high altitude reconnaissance jet aircraft designed in the United States in the 1950s. DevelopmentIn fall 1957, Northrop submitted a proposal to the United States Air Force for a subsonic high-altitude reconnaissance aircraft, having capitalized on their earlier N-165 design study. The concerns by CIA pilots that the Lockheed U-2 was being tracked by radars on spy missions over the Soviet Union prompted Northrop to make low observable technology a part of the N-204 design, as was later done with the Lockheed A-12.[1] Although Northrop estimated that the N-204 could go into service in 1960, the N-204 project did not proceed to the hardware stage.[1] DesignThe N-204 was similar to the Lockheed U-2 and Yakovlev Yak-25RV in having long, straight wings like an ordinary sailplane, and a v-tail. However, the engines of the aircraft were not buried in the wing roots or podded under the wings, but instead were buried in the outboard end of the wing center-section.[1] Specifications (estimated){{aircraft specifications|plane or copter?= plane |jet or prop?= jet |ref=[1] |crew= two, pilot and flight engineer/RSO officer |capacity= |length main= 105 ft 8 in |length alt= 32.2 m |span main=273 ft 9 in |span alt= 83.44 m |height main= |height alt= |area main= 5,000 ft² |area alt= 464.52 m² |airfoil= |empty weight main= |empty weight alt= |loaded weight main= 34,000 lb |loaded weight alt= 15,422 kg |useful load main= |useful load alt= |max takeoff weight main= 75,000 lb |max takeoff weight alt= 34,019 kg |more general= |engine (jet)= Westinghouse J54 |type of jet=turbojets |number of jets=8 |thrust main=6,075 lbf |thrust alt= 27.02 kN |thrust original= |afterburning thrust main= |afterburning thrust alt= |max speed main= 480 knots |max speed alt= 553 mph, 885 km/h |cruise speed main= |cruise speed alt= |never exceed speed main= |never exceed speed alt= |stall speed main= |stall speed alt= |range main= 3,000 nm |range alt= 3,452 mi, 5,556 km |ceiling main= 85,000 ft |ceiling alt= 25,908 m |climb rate main= |climb rate alt= |loading main= |loading alt= |thrust/weight= |power/mass main= |power/mass alt= |more performance= |armament= |avionics= }} See also{{Portal|United States Air Force}}{{aircontent||related= |similar aircraft=
|lists= |see also= }} References1. ^1 2 3 Chong, Tony, 2016. Flying Wings & Radical Things: Northrop’s Secret Aerospace Projects & Concepts 1939-1994. Forest Lake, Minnesota: Specialty Press. {{Northrop aircraft}} 2 : Northrop aircraft|United States military reconnaissance aircraft 1950–1959 |
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