Editing Lockheed YF-22 (section)

===Naval variant===
Because the NATF, which was to replace the F-14 Tomcat for the U.S. Navy, required a lower landing speed than the ATF for [[CATOBAR|aircraft carrier recovery]] while still attaining Mach 2-class speeds, the Lockheed team's NATF design group went through several configurations to arrive at a suitable design that would achieve acceptable characteristics for carrier operations. Boeing had advocated for a fixed-wing design while General Dynamics favored [[variable-sweep wing]]s. After an internal competition and extensive wind tunnel testing, the team chose to incorporate variable-sweep wings in August 1989. The design retained the thrust vectoring nozzles and four tails.<ref name="Mullin2012P38-39"/> The resulting aircraft would have been heavier, more complex, and more expensive than the Air Force ATF counterpart.<ref name="Miller2005p74">Miller 2005, p. 74.</ref> The Lockheed team would submit its NATF design along with its F-22 full-scale development proposal in December 1990, although the Navy would withdraw from the program shortly afterwards due to cost.<ref name="Mullin2012P38-39">Mullin 2012, pp. 38–39.</ref>