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The NATF-23 design was submitted along with the F-23 proposal for full-scale development, or engineering and manufacturing development (EMD), in December 1990, although by late 1990 the Navy was already beginning to back out of the NATF program and fully abandoned it by FY 1992 due to escalating costs. [39]
Northrop Corporation was an American aircraft manufacturer from its formation in 1939 until its 1994 merger with Grumman to form Northrop Grumman. The company is known for its development of the flying wing design, most successfully the B-2 Spirit stealth bomber. [1] Northrop Corporation F-5E Tiger II of the Swiss Air Force arrives at the 2016 ...
Northrop was the prime contractor on the radical YF-23 which was one of two candidates for the Advanced Tactical Fighter but would eventually lose to the F-22 Raptor. [22] Northrop later partnered with Lockheed on the F-35 and serves as a principal member of the Lockheed Martin industry led team.
The Northrop/McDonnell Douglas group promoted the larger YF-23." I might be wrong, but I don't think anything would be lost here by deleting the first sentence and going with: "Lockheed, Boeing and General Dynamics entered the YF-22, while Northrop and McDonnell Douglas promoted the larger YF-23."
However, the cited books in this article are written by people with direct connections to the YF-23, namely Alfred "Paul" Metz, YF-23 PAV-1 test pilot, and Air Force Materiel Command researchers and archiver, Tony Landis and reputed aviation author Dennis Jenkins. If that is the case, I can upload a non-free thumbnail version under fair use.
The YF-22 team won the contest against the YF-23 team for full-scale development and the design was developed into the Lockheed Martin F-22. [ N 1 ] The YF-22 has a similar aerodynamic layout and configuration as the F-22, but with notable differences in the overall shaping such as the position and design of the cockpit, tail fins and wings ...
Northrop's and Lockheed's designs were generally similar, though the former's submission featured more angular and flat surfaces. The company used "GENSCAT", software similar to ECHO 1, to calculate the RCS of its designs. [16] [17] On 1 November 1975, Lockheed and Northrop were each awarded $1.5-million contracts to proceed with Phase 1 of XST ...
The second YF-23 (left), nicknamed “Spider”, was powered by two YF120 engines. Due to the ATF's increasing weight during development from 50,000 lb (22,700 kg) to 60,000 lb (27,200 kg), thrust requirement was increased by 20% to over 23,500 lbf (105 kN) in military/intermediate power and 35,000 lbf (156 kN) class in full afterburner in ...