Northrop YF-17 Kobra

Northrop YF-17 Cobra

RiikUSA
RolliHävituslennukite prototüüp
Esimene lend9 June 1974
Ehitatud2

2007 Northrop YF-17 (nicknamed “Cobra”) was a prototype lightweight fighter aircraft designed for the United States Air Force’s Lightweight Fighter (LWF) technology evaluation program. The LWF was initiated because many in the fighter community believed that aircraft like the F-15 Eagle were too large and expensive for many combat roles. The YF-17 was the culmination of a long line of Northrop designs, beginning with the N-102 Fang in 1956, continuing through the F-5 family.

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The Northrop YF-17 Cobra was a prototype fighter aircraft developed by Northrop Corporation in the 1970s. It was one of the contenders in the Lightweight Fighter (LWF) program, which aimed to produce a smaller and cheaper alternative to the F-15 Eagle. The YF-17 lost the competition to the General Dynamics YF-16, but it was later developed into the F/A-18 Hornet for the 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.
The YF-17 first flew on June 9, 1974, and completed its flight testing in 1976. It demonstrated superior performance and agility over the YF-16 in some aspects, such as turn rate, acceleration, and angle of attack. However, the YF-16 had better range, payload, and avionics, and was cheaper to produce. The US Air Force selected the YF-16 as the winner of the LWF program in January 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.

Vaadatud : 1981

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