Production totals for the MiG-15 are enormous and hard to pin down — Soviet plus licensed foreign output is commonly cited between about 13,000 and 18,000 airframes, with some sources giving Soviet-only figures nearer 11,000–13,000. The exact global total is genuinely uncertain; treat any single number as approximate.

Key variants tell the story of its spread: the definitive MiG-15bis with the VK-1 engine; the two-seat UTI trainer (“Midget”); the Chinese-built J-2 / JJ-2; the Polish Lim-1 / Lim-2; and the Czechoslovak S-102 / S-103. A rugged, simple, mass-producible design could be sold and sustained almost anywhere — which is why roughly 40 nations flew it.

Two foreign ingredients shaped the MiG-15. Captured German high-speed aerodynamic data pointed Mikoyan-Gurevich toward a 35-degree swept wing at a time when most fighters were still straight-winged. And Britain’s 1946–47 sale of the Rolls-Royce Nene handed the Klimov bureau a world-class centrifugal turbojet to copy into the RD-45 and VK-1. Together they produced a fighter that briefly out-classed everything the West could put over Korea — arguably the most consequential technology transfer of the early Cold War.

The MiG-15’s cannon fit — one 37 mm and two 23 mm guns — threw a heavy, slow-firing punch designed to bring down large bombers in a single pass. Against the B-29 Superfortress it worked so well the USAF pulled the bomber out of daylight raids by late 1951. Against nimble jets like the F-86, however, the low muzzle velocity and slow rate of fire made hits harder to score — a weapon optimized for the wrong opponent in the dogfight.

Firm dollar figures for the MiG-15 do not reliably exist in open sources. It was a Soviet state product built and exported across a planned economy, so per-unit costs were not calculated or published the way Western programmes were. Export prices varied enormously by variant, buyer and year, and no credible cost-per-flight-hour figure survives either. What is certain is the design intent: rugged, simple and cheap enough to build in the many thousands and hand to some 40 air forces.