Northrop YF-17 Cobra

Northrop YF-17 Cobra

LandUsa
RollePrototype kampfly
Første flyvning9. juni 1974
Bygget2

Den Northrop YF-17 (med tilnavnet "Cobra") var en prototype letvægts jagerfly designet til United States Air Force's Lightweight Fighter (LWF) teknologi evalueringsprogram. LWF blev indledt, fordi mange i jagersamfundet mente, at fly som F-15 Eagle var for store og dyre til mange kamproller. YF-17 var kulminationen på en lang række Northrop designs, begyndende med N-102 Fang i 1956, fortsætter gennem F-5 familien.

Kilde: Northrop YF-17 Cobra på Wikipedia

Northrop YF-17 Cobra Walk Around
FotograferCees Hendriks
LokaliseringUnknow
Billeder81
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Northrop YF-17 Cobra Walk Around
FotograferVladimir Yakubov
LokaliseringWestern Museum of Flight, Torrance
Billeder153

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Northrop YF-17 Cobra var en prototype kampfly udviklet af Northrop Corporation i 1970'erne. Det var en af kandidaterne i Lightweight Fighter (LWF) programmet, som havde til formål at producere et mindre og billigere alternativ til F-15 Eagle. YF-17 tabte konkurrencen til General Dynamics YF-16, men den blev senere udviklet til F/A-18 Hornet for US Navy and Marine Corps.
The YF-17 was designed as a twin-engine, single-seat, supersonic fighter with a high-mounted wing and twin tail fins. It had a semi-monocoque fuselage with a blended wing-body shape that reduced drag and increased lift. The wing had leading-edge extensions that improved maneuverability and stability at high angles of attack. The engines were mounted close to the fuselage to reduce radar cross-section and infrared signature. The cockpit was equipped with a head-up display, a multifunction display, and a hands-on-throttle-and-stick (HOTAS) system.
The YF-17 was armed with a 20 mm M61 Vulcan cannon and four hardpoints under the wing for carrying air-to-air missiles, bombs, or fuel tanks. It also had two wingtip rails for Sidewinder missiles. The YF-17 had a maximum speed of Mach 2.0, a combat radius of 460 miles, and a service ceiling of 50,000 feet. It was powered by two General Electric YJ101 turbofan engines, each producing 15,000 pounds of thrust.
YF-17 fløj første gang den 9. juni 1974 og afsluttede sin flyvetest i 1976. Det demonstrerede overlegen ydeevne og smidighed over YF-16 i nogle aspekter, såsom drejehastighed, acceleration og angrebsvinkel. YF-16 havde imidlertid bedre rækkevidde, nyttelast og flyelektronik og var billigere at producere. US Air Force valgte YF-16 som vinder af LWF-programmet i januar 1975.
The YF-17 was not abandoned, however. The US Navy was interested in adopting a new fighter to replace its aging F-4 Phantom II and A-7 Corsair II fleets. The Navy wanted a twin-engine fighter with better endurance and carrier suitability than the YF-16. Northrop teamed up with McDonnell Douglas to modify the YF-17 for naval use. The resulting aircraft was designated as the F/A-18 Hornet, which entered service in 1983 and became one of the most successful fighters in history.

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