..

《火狐狸》（英語：Firefox）是一部於1982年上映的美國科幻驚悚片，由克林·伊斯威特執導及主演。內容改編自克瑞格·湯瑪士撰寫的同名小說。冷戰時期，蘇聯發展出一種叫做「火狐狸」的革命性新式戰鬥噴射機，由於謠傳這是能夠躲過雷達偵測的隱形戰機，英國政府擔心蘇聯會利用這種戰機作為第一線攻擊武器，而根據情報單位的調查得知該戰機能經由與飛機連接的頭盔直接由腦波控制，而且只能解讀俄語，若不用俄語思考便無法駕駛該戰機，這是蘇聯特意設計來防止飛機被西方國家所用的手段。

根據情報兩架MiG-31原型機，其中一架即將展開試飛，測試最新武器，能讓其他戰鬥機上的空對空追熱導彈(如麻雀飛彈)混淆目標的『高熱能鎂光彈』的效果，這種曳光彈打出會產生高熱能的火光。

於是英國政府千挑萬選地找上了具蘇聯血統的退休戰鬥機飛行員米契剛特（克林伊斯威特 飾），剛特必須偽裝潛入蘇聯偷出火狐狸，然後再橫越冰天雪地的北極冰原飛回自由世界的土地，他能夠順利完成這項艱鉅的任務？

Full-scale MiG 31 Firefox model used in the film "Firefox" parked at Van Nuys Airport, California in May 1982.

.

MiG-31系列於1979年量產，1982年開始服役於蘇聯國土防空軍（PVO）。至於其首次在西方國家面前曝光，則是一直到1985年時，由挪威飛行員於巴倫支海攝影

.MiG-31可以實行多種長程任務。蘇聯解體後，保養費用大減，許多聯隊不能維修飛機，因此到了1996年時，只有約20%的數量尚可以使用。但是到了2016年，隨著俄羅斯的經濟好轉，俄軍已經可以維持約75%的MiG-31，常保於可使用狀.

.The Mikoyan MiG-31 (Russian: Микоян МиГ-31; NATO reporting name: Foxhound) is a supersonic interceptor aircraft developed for the Soviet Air Forces by the Mikoyan design bureau as a replacement for the earlier MiG-25 "Foxbat"; the MiG-31 is based on and shares design elements with the MiG-25.^]
The MiG-31 is the fastest operational combat aircraft in the world.^] It continues to be operated by the Russian Aerospace Forces and Kazakh Air Defense Forces following the end of the Cold War and the collapse of the Soviet Union in 1991. The Russian Defence Ministry expects the MiG-31 to remain in service until at least 2030; that was confirmed in 2020 when an announcement was made to extend the service lifetime of the existing airframes from 2,500 to 3,500 hours.

.

.The fundamental purpose behind the MiG-31 program was to develop an aircraft capable of intercepting anything the West currently had, which at that time was the Lockheed SR-71 Blackbird, U-2B, TR-1, and the D-21 drone. The cold war was still at its peak and the need to keep the other guy honest had led the United States to begin overflights of Russia with spy planes. Thus, the Mach 5 Lockheed D-21 drone launched from a "mother-ship" SR-71 was the only real concern Russia had in 1982, a very real one nonetheless. The Americans already had several successful launches and recoveries of the unmanned aircraft, and with its penetration speed of Mach 5 at an altitude of well over 100,000 feet, Mikoyan-Gurevich needed to make this their primary target. Much of what they had learned from the MiG-25 Foxbat program was applied to create one of the most advanced aircraft to ever take to the skies. The Firefox was at the forefront of aviation technology and the United States recognized this.

The budget kept getting larger and the hopes of building more than two prototypes began to diminish quickly. The titanium manufacturing process alone was already far beyond the initial budget for the program, but officials pushed regardless. They were not to be outdone by anyone, and they certainly would not allow the Americans to overfly their airspace unchallenged any longer. The MiG-31 was to be the ultimate advanced interceptor aircraft.

Following the existence of the Firefox becoming known to the US Government, a plan was developed to place an experienced combat pilot named Mitchel Gant in the vicinity of the prototype during its final trials, with orders to steal the aircraft and fly it to the West for analysis. During the flight, Gant was pursued by a Russian test pilot flying the only other prototype, resulting in a prolonged aerial battle which resulted in the destruction of the second prototype.

The Mikoyan-Gurevich Design Bureau succeeded in creating an aircraft with capabilities far beyond anything the west currently had by using the proven "brute force" design tactic so typical of Russian military aircraft. The creative minds at the Mikoyan-Gurevich design bureau learned as much about what was being done at the time as they could, then improved upon the concepts in many ways. The west recognized this as an opportunity to even the table and consequently made the radical decision to steal the aircraft from Russia. They succeeded in doing so, succeeding also in destroying the only other prototype example of the MiG-31.

With both aircraft gone, all of the program funding used to build the first two prototypes gone, and several of their lead engineers dead, Mikoyan-Gurevich decided not to reinstate the Firefox program. This effectively ended the legacy of one of the greatest, most powerful and technologically advanced aircraft of our time. There have been many stories about how the Firefox was never spoken of again among the corridors at Mikoyan-Gurevich. All records of it, along with the tooling, were destroyed shortly after it was stolen, and there exists no mention of the program in any Russian aviation literature. It was viewed by many of the top Russian commandants as an "embarrassing" end to such an incredible machine.

.

.A Russian Aerospace Forces MiG-31BM armed with Kh-47M2 Kinzhal missile. Shut to Ukraine 2023.at midnight ?