Dissimilar air combat training was introduced into air combat training after Vietnam combat experience. Traditionally, pilots would train against similar aircraft for training, so pilots of F-8s would seldom train against F-4 Phantoms, and almost never against A-4 Skyhawks. Combat was usually between very large and powerful US fighters such as the F-4 Phantom against smaller, more nimble subsonic Soviet MiG-17, Mig-19 and supersonic Mig-21. US pilots in USAF F-105s were barely able to exceed parity, and pilots in Phantoms and Crusaders were not able to achieve the hugely lopsided win / loss ratio achieved over Korea, and had received very little air combat training since most air combat doctrine since the late 1950s centered around delivering nuclear weapons over Europe, or firing missiles at beyond visual range at bombers, not daylight dogfighting which was thought to be obsolete in the missile age. The primary US fighter used against North Vietnamese MiGs, the F-4 Phantom did not even have an internal gun until installed on late Air Force F-4E models. Rules of engagement did not even permit beyond visual range firing of missiles. Radar guided Sparrows rarely worked, and even the short range Sidewinder was often ineffective in many dogfighting maneuvering situations. The F-4 Phantom II (simply F-4 Phantom after 1990) is a two-place (tandem), supersonic, long-range, all-weather fighter-bomber built by McDonnell Douglas Corporation. ... MiG-17 at the Central Texas Airshow, USA, May 2003. ... The Mikoyan-Gurevich MiG-19 (NATO reporting name Farmer) is a third-generation Soviet, single-seater jet engined fighter aircraft. ... Mikoyan-Gurevich MiG-21 (NATO reporting name Fishbed) is a fighter aircraft, originally built by the Mikoyan and Gurevich Design Bureau in the Soviet Union. ...

It was found that Phantom training against other Phantoms did not reflect the reality of a target which was smaller, smokeless, and more agile. A large target with smoking exhuast like the Phantom can be seen much farther away than a small smokless one, while some have nicknamed the F-15 Eagle the "flying tennis court" because of its large visual signature. Ever since the Flying Tigers, aerial tacticians have advocating exploiting known differences in aircraft to maximize ones own advantages while minimizing the disadvantages of ones own platform, thus neutralizing the superior maneuverablility and climbing speed of a Zero compared to the rugged fast diving and powerfully armed P-40 Tomahawk The Boeing (formerly McDonnell Douglas) F-15 Eagle is an American-built all-weather tactical fighter designed to gain and maintain air superiority in aerial combat. ... This article concerns the American Volunteer Group, a World War II unit usually known as the Flying Tigers. For other uses of the term see Flying Tigers (disambiguation). ... Mitsubishi A6M2 Zero Model 21 on the flight deck of carrier Shokaku , 26 October 1942, Battle of the Santa Cruz Islands The Mitsubishi A6M Zero was a light-weight carrier-based fighter aircraft employed by the Imperial Japanese Navy from 1940 to 1945. ... The Curtiss P-40 was an American fighter aircraft which first flew in 1938 and played a vital role in the crucial middle stages of World War II. Developed from the pre-war radial-engined P-36 Hawk, the P-40 became known as the Tomahawk, the Kittyhawk, and finally...

For this reason, the United States Navy Fighter Weapons School adopted the nimble subsonic A-4 Skyhawk to simulate subsonic Soviet fighters, while the F-5E Tiger simulated the supersonic MiG-21 Fishbed fighter. Both the Skyhawk and Tiger were used in the film Top Gun. Promotional patch for the movie Top Gun often confused with the actual TOPGUN patch given to graduates. ... The A-4 Skyhawk is an attack aircraft originally designed to operate from United States Navy aircraft carriers. ... The F-5 Freedom Fighter (or Tiger II) was a low cost entry level supersonic fighter aircraft, designed and built by Northrop in the United States, beginning in 1962. ... Mikoyan-Gurevich MiG-21 (NATO reporting name Fishbed) is a fighter aircraft, originally built by the Mikoyan and Gurevich Design Bureau in the Soviet Union. ... Top Gun is a 1986 American film directed by Tony Scott and produced by Don Simpson and Jerry Bruckheimer in association with Paramount Pictures. ...

The A-4 Skyhawk has since been replaced by the T-45 Goshawk, a navlized British Hawk trainer. F-16s have been used to simulate later generation Soviet fighters such as the MiG-29. The now retired F-14 Tomcat was also used in various paint schemes to simulate Iranian F-14s, as well as the large Soviet Flanker. The Air Force has reportedly also used actual captured or purchased Soviet fighters on occasion. Some have complained that not enough new instructor pilots are being trained, and that the maintenance situtation on many aircraft, especially the now-retired Tomcat was very poor. The A-4 Skyhawk is an attack aircraft originally designed to operate from United States Navy aircraft carriers. ... The BAE Hawk is an advanced jet trainer manufactured by BAE SYSTEMS and used by the Royal Air Force and other countries. ... The Grumman F-14 Tomcat is a supersonic, twin-engine, two-seat variable geometry wing aircraft. ...