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Operators
Former operators of the MiG-15, North Korea - Korean People's Army Air Force, Afghanistan - Afghan Air Force, Albania - Albanian Air Force, Algeria - Algerian Air Force, Angola - People's Air and Air Defence Force of Angola, Bulgaria - Bulgarian Air Force, Cambodia - Royal Cambodian Air Force, China - People's Liberation Army Air Force, People's Liberation Army Naval Air Force, Republic of the Congo - Congolese Air Force, Cuba - Cuban Revolutionary Air and Air Defense Force
Czechoslovakia - Czechoslovak Air Force, East Germany - Air Forces of the National People's Army, Egypt - Egyptian Air Force, Finland - Finnish Air Force
Guinea - Guinea Air Force, Guinea-Bissau - Guinea-Bissau Air Force, Hungary - Hungarian Air Force, Indonesia - Indonesian Air Force, Iraq - Iraqi Air Force
Khmer Republic - Khmer Air Force, Mali - Mali Air Force, Mongolia - Mongolian Air Force, Morocco - Royal Moroccan Air Force, Mozambique - Mozambique Air Force, Nigeria - Nigerian Air Force, North Vietnam - Vietnam People's Air Force, North Yemen - North Yemen Air Force, Pakistan - Pakistan Air Force, Poland - Polish Air Force - Polish Navy, Romania - Romanian Air Force, Somalia - Somali Aeronautical Corps, South Yemen - South Yemen Air Force, Soviet Union - Soviet Air Forces, Soviet Air Defence Forces, Sri Lanka - Sri Lanka Air Force, Sudan - Sudanese Air Force, Syria - Syrian Air Force, Tanzania - Tanzanian Air Force
Uganda - Ugandan People's Defence Air Force.
United States - United States Air Force - In the 1980s, the United States purchased a number of Shenyang J-4s along with Shenyang J-5s from China via the Combat Core Certification Professionals Company; these aircraft were employed in a "mobile threat test" program at Kirtland Air Force Base, operated by the 4477th "Red Hats" Test and Evaluation Squadron of the United States Air Force. As of 2015 MiG-15UTI's and MiG-17's are operated by a civilian contractor at both the USAF and US Naval Test Pilot Schools for student training.
Vietnam - Vietnam People's Air Force, Yemen - Yemeni Air Force
Civilian operators
Argentina
One private Czechoslovak-built CS-102 that was operated by the Polish Air Force. Rebuilt in 1975 as a SB Lim2M. It was brought to Argentina in 1997 and given the experimental registration LV-X216

The introduction of the MiG-15 was a total (nasty) surprise to the NATO air groups, somewhat comparable to the surprise the Allies received when the Japanese A6M Zero-Sen made its appearance a few years before, during WWII. The Mig-15 was developed under the utmost security. The Soviet philosophy was; if another country could achieve military superiority, sooner or later it was bound attack Russia, just as the Nazis had on June 22, 1941. Under Stalin, military weapons research had high priority and the secrecy involved was deadly serious. Anyone even suspected of the slightest security violation was tortured and executed-the KGB was listening. Thus, the MiG-15-arguably the worlds best fighter aircraft at the time-was produced in near total secrecy.

The first step toward producing the first MiG jet was known as the model I-250. It featured the odd installation of a 1,400 hp (1045 kW) piston engine in the front and a small, 650 pound static thrust (2.89 kN) jet located in the rear. The craft itself was vaguely reminiscent of the sleek MiG-1 with a rather sharp nose, and cockpit set into the back half of a bullet-shaped fuselage. It was said this oddball craft had a top speed of well over 500 miles per hour (805 kph) in level flight, placing it in the elite group of the fastest prop driven planes in the world.

Though the goal was to produce a pure jet aircraft, Russia simply did not have the engineering expertise to build a jet engine capable of enough power to better the speed of a prop driven plane. Like the US a few years before, the Soviets in 1944 were working with technology acquired from building turbochargers for piston engines. It is (very roughly) a similar problem designing a jet engine as designing a turbocharger; extremely hot exhaust gases under pressure are used to power a turbine. In front of this turbine (connected the same shaft) is a compressor which packs fresh air and fuel into a combustion chamber. Upon ignition, the hot gasses are produced which power the turbine, thus producing a self sustaining reaction and (in the case of the jet engine) the thrust needed to power the aircraft. The first practical Soviet jet powered aircraft was the Mig-9 which flew on April 9, 1946. It had a top speed of 560 mph (901.23 kph) which was much faster than the prop driven aircraft of the time, but not faster than the American P-80A Shooting Star (the designation "P" for "Pursuit" was changed in 1948 to "F" for "Fighter").

While the Soviets were having their developmental problems, the British on the other hand seemed to be years ahead of everyone. The Jumo 004 and BMW 003 engines, the Russians had captured in Germany, were still in the development stage and rather temperamental when compared to England's Rolls-Royce jet engines in the late part of 1945. The Germans pursued axial-flow engines, which offered the promised of greater performance, but was more difficult to develop. Just as it appeared the rest of the world was about to leave the Soviets far behind in the race for a more practical jet engine, fortune truly smiled on the Reds.

In Britain, Clement R. Attlee of the socialist Labour Party was elected Prime Minister in 1945. Attlee, being somewhat naive about the Russian brand of socialism, immediately set about improving relations between Britain and Russia. At the invitation of Attlee, Joseph Stalin sent a team of scientists and engineers to the Rolls-Royce factory to study the design of the superb "Nene" jet engine. Arrangements were made for the Soviets to manufacture the engine in Russia under license from Rolls-Royce. They also took several Nenes with them when they returned to Russia. The Russians wasted little time in copying every detail of the engine and appropriating the design as their own, calling it the "Klimov RD-45" with no regard at all being given to the licensing agreement with Rolls-Royce. However, due to the quality of the Russian materials used in construction of the RD-45, performance of the engine left much to be desired. Turbine blade failures were common, and average time between overhauls was on the order of a very few hours. Fuel consumption bordered on the intolerable. The dogmatic approach of the Soviet aircraft industry solved these problems one-by-one and eventually produced an engine of nearly equal quality to the original Nene. It was called the Klimov VK-1-still almost an exact copy of the Nene.

Now in possession of a powerful and reliable jet engine, work was resumed on the design of a suitable airframe. The "I-310", as the super secret Mikoyan-Gurevich craft became known, was first flown in late 1947 and it was immediately obvious to the Russians that they had a "world beater" on their hands. There were still some flaws to be eliminated, but it possessed dazzling performance.

Throughout the late forties, development proceeded on the I-310. Different combinations of cannon were tried, The final arrangement being two 23mm NK23 cannon slung under the left side of the nose and a 37mm NS37 under the right, with 80 rounds for each of the 23mm and 40 rounds for the 37mm. This assemblage provided a devastating punch for the little fighter, although not without compromise. The rate of fire was very slow when compared to the US .50 caliber (12.7mm) machine gun. The target was harder to hit, but it took only 1 round from the 37mm or between 2 and 3 rounds from the 23mm to destroy an enemy fighter.

It was found the aircraft had an alarming yaw at speeds above Mach 0.9 and it also had a tendency to flip itself out of a high speed turn. This latter problem was common to most early, high speed jet fighters. The yaw problem was never satisfactorily resolved. The craft was simply fitted with speed brakes on each side of the rear fuselage which automatically opened at Mach 0.9. The Soviets were fond of simple, crude fixes such as the speed brakes. When it was found that production standards were being ignored and a resulting problem of unequal lift from the wings occurred, the Russians simply improvised a trim tab to one of the wings to increase or decrease the lift of that wing. However, the trim tab could only be adjusted while the craft was on the ground.

Though engine problems, airframe problems and even weapons problems continued, the craft was rushed into production . The first production MiG-15 flew on the last day of December 1948. Continuous improvements were made and in early 1950, the MiG-15bis debuted. By this time, most of the problems with the engine and flight characteristics were alleviated (though "flicking" out of tight turns would dog the fighter throughout its life). With the Klimov VK-1 engine, fuel consumption was still somewhat of a problem but external fuel tanks gave the "bis" an acceptable combat range. Later, the production MiG-15bis would be fitted with an improved Klimov which somewhat alleviated the fuel consumption problem.

The MiG-15bis would go on to equip almost every communist nation in the world, and was manufactured in many. It was also sold to quite a few non-communists. Most of the countries of Africa bought them as well as most middle eastern countries and countries which were not members of NATO.

Included amongst the communist states equipped with the MiG-15bis was North Korea and China. By the time the Korean War began on June 25, 1950, Chinese pilots (some of which were veterans of WWII) had been quickly trained in the bis and on November 26, 1950, when Mao Zedong (Mao Tse-tung ) sent ground troops to assist the beleaguered North Korean army he also sent the MiG-15bis and its trained pilots.

The later production MiG-15bis was powered by a Klimov VK-1A engine with a static thrust of 5,900 pounds (26.24 kN) and the speed was 668 mph (1075.04 kph). It had the same armament of a 37mm cannon and dual 23mm cannon but contained in a unique removable pod. This gun-pack was drawn up into the fuselage by means of a cable winch located just behind the nose wheel compartment. The 37mm NS-37 Nudelman-Suranov cannon was on the right side of the nose wheel and the NK-23s (the later production dash 15bis had NS-23s with a faster rate of fire) were on the left. The use of spare gun-packs meant the turn-around time between sorties was very short.

As experience revealed, having the best military tools and winning the battle do not necessarily go hand-in-hand. In the case of the MiG-15 a superb fighter aircraft was flown by pilots who had received inferior training. Unlike their US counterparts, Chinese pilots of WWII were not taken out of combat and used to train new pilots. Thus, the skill level of the Chinese pilots on average was far below that of the UN pilots. This was very apparent in the US vs. Chinese kill ratio of better than 8:1 during the Korean War. And this was done with the slightly inferior F-86 which had neither the speed, maneuverability nor the altitude of the MiG. The difference was the higher quality training received by the American pilots and NATO pilots in general.

So many variants and sub-variants of the MiG-15 were produced that it would take a very heavy book to list them all. The Soviets were very fond of modifying this aircraft to fit every task from target towing to night fighter interception and ground support . However, the most important variant was the MiG-15UTI which was a two seat (tandem) model used for training new pilots. The MiG-15UTI was produced in greater numbers than the bis and was still in use in the late 1980s by communist and non-communist countries around the world.

The Mikoyan Design Bureau continues to produce aircraft of outstanding performance including the MiG-29 "Fulcrum". In the right hands, the Fulcrum is more than a match for any aircraft in the world. [Courtesy; The Aviation History Online Museum]