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Type of aircraft From Wikipedia, the free encyclopedia
The Northrop N-102 Fang was a fighter aircraft design created by Northrop Corporation and proposed to the United States Air Force in 1953. The Fang was explicitly designed as a ”light” or “lightweight fighter” in direct response to what Northrop saw as the ever-increasing weight, size, complexity, and cost of Western fighter designs. While the Fang was ultimately overlooked in-favor of the Lockheed F-104 Starfighter, Northrop’s interest in the lightweight fighter concept would ultimately come to fruition with the F-5 Freedom Fighter, itself spawning a moderately successful fighter family.
N-102 Fang | |
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Patent images of the N-102 design | |
Role | Light fighter |
National origin | United States |
Manufacturer | Northrop Corporation |
Status | Project only |
Developed into | Northrop F-5 Freedom Fighter |
In the early 1950s, concerns grew in the United States about the growing weight, complexity and cost of modern fighter aircraft, and in late 1952, Northrop started a design study for a simple, lightweight, supersonic fighter aircraft, the N-102 Fang, with the design team headed by Welko E. Gasich, Northrop's Chief of Advanced Design.[1][2][3] On 12 December that year, the United States Air Force (USAF) issued a requirement for a lightweight air superiority aircraft to replace the F-100 supersonic fighter. The new aircraft was expected to enter service in 1957 and was required to have a speed of at least Mach 1.3 at 35,000 ft (11,000 m) and a combat radius of 400 mi (650 km). Northrop proposed the N-102 to meet the requirement, while other competitors were from Lockheed (the CL-246), North American Aviation (the NA-212) and Republic Aviation (the AP-55).[4]
The N-102 had a shoulder-mounted delta wing and a small all-moving tailplane mounted behind the wing. It would be powered by a single turbojet mounted in the lower aft fuselage which was supplied by air from a variable-geometry ventral air inlet. This promised smoother, more efficient airflow to the engine at the risk of being more vulnerable to ingestion of foreign objects and damage to the engine.[5][6] A number of different engines were proposed, including the Pratt & Whitney J57, the Wright J65 (a license-produced derivative of the British Armstrong Siddeley Sapphire), the Wright J67 (a license-built Bristol Olympus) or the General Electric J79, with all of the engines giving an estimated speed of at least Mach 2.[7]
In early 1953, the USAF selected Lockheed's CL-246, which became the Lockheed F-104 Starfighter, but Northrop at first continued work on the N-102 with the hope of gaining export orders, building a mock-up of the aircraft in USAF colors.[8] However, the use of a single, large engine meant that the aircraft could not be as light or cheap as Northrop wanted, and Northrop stopped work on the N-102 during 1954.[5][2][9] Northrop continued work on lightweight fighters, basing its further studies on the use of two small General Electric J85 engines, which allowed a much lighter and cheaper aircraft,[5] with Northrop's design team believing that twin engines would increase the reliability and safety margin.[10] The J85-powered design studies eventually formed the basis of the F-5 fighter family.[11][12][13]
The design was the subject of a 1957 design patent.[14]
Data from Northrop N-102 "Fang"[7]
General characteristics
Performance
Armament
Related development
Aircraft of comparable role, configuration, and era