The most-produced supersonic jet aircraft in history, flown by more than 60 air forces worldwide. Built in numbers exceeding 11,000 across the Soviet Union, Czechoslovakia, India and China, it saw sustained combat over Vietnam, the Middle East and South Asia before its most prominent operator, the Indian Air Force, retired the type in September 2025. Developed by Mikoyan-Gurevich (MiG).
The most-produced supersonic jet aircraft in history, flown by more than 60 air forces worldwide. Developed by Mikoyan-Gurevich (MiG).
Photo: United States Air Force, Public domainSee Specifications for full detail.
The Mikoyan-Gurevich MiG-21 is a Soviet single-engine, delta-wing supersonic fighter. Over 11,000 were built in the Soviet Union, India and Czechoslovakia, plus thousands more as Chinese-built J-7 copies, making it the most-produced supersonic aircraft in history.[1]
It has been flown by roughly 60 air forces and has seen combat somewhere in the world in nearly every year since 1963, including against US F-4 Phantoms over Vietnam.[1]
Korea's MiG-15-versus-Sabre duels convinced Soviet planners that the next war's fighter needed one thing above all: performance. The requirement that became the MiG-21 asked for a lightweight point-defence interceptor - Mach 2, blistering climb, minimal everything else - to defend the homeland against Western bombers.[1]
Mikoyan-Gurevich tested both swept and tailed-delta prototypes; the delta Ye-4/Ye-5 line won, evolving into the Ye-6 that first flew in 1958 as the production template. The formula: a tiny tailed delta wrapped around one Tumansky turbojet, with a nose intake whose movable centre cone housed the (initially tiny) radar.[1]
The MiG-21's genius was industrial as much as aeronautical. Three generations - the day-fighter F-13, the all-weather PF/PFM family, and the multirole MF/bis with more fuel, better engines and real avionics - kept the same cheap, tough airframe relevant for thirty years of production, ending in the USSR in 1985 and in India (under licence) later still.[1]
Counting China's reverse-engineered Chengdu J-7 (built until 2013)[2], the family exceeds 13,000 aircraft - a scale no supersonic design has approached since. By the 1970s the MiG-21 equipped the air forces of dozens of Warsaw Pact, Middle Eastern, Asian and African states.[1]
Everything on the Fishbed serves lightness and speed. The razor-thin delta wing gave low supersonic drag and a startling climb; the price was ferocious landing speeds and fuel reserves best measured in minutes - a point-defence aircraft in the most literal sense, with early models carrying barely 45 minutes of flying.[1]
It was engineered for the real Soviet world: grass and dirt strip operations, maintenance by conscripts with hand tools, temperatures from Siberia to the Sahara. The forward-hinging canopy of early models doubled as a blast shield during ejection - a characteristically brutal-but-clever Soviet touch later abandoned for a conventional design.[1]
Vietnam was the proving ground. Flown by North Vietnamese pilots under strict ground control, MiG-21s slashed through American strike packages with hit-and-run Atoll missile attacks, imposing real losses and forcing the U.S. to reinvent its training. Aces like Nguyen Van Coc (nine kills, the war's highest-scoring pilot)[3] flew the Fishbed; both sides ended the war respecting it.[1]
It fought everywhere else too: Indo-Pakistani wars (including the first supersonic-vs-supersonic combats of 1971), the Middle East from 1967 through the Bekaa Valley's massacre of Syrian MiGs in 1982, the Iran-Iraq War, African conflicts beyond counting - and, astonishingly, into the 2020s, with upgraded examples flying combat in regional conflicts a lifetime after the design's first flight.[1]
Its long twilight has been harder: ageing airframes earned grim nicknames ('flying coffin' in India's press), and operators from Romania to India finally retired their fleets in the 2020s - India's last MiG-21 squadrons standing down after six decades of service.[1]
No fighter has armed more nations, fought more wars or trained more pilots than the MiG-21. Its low cost and simplicity meant the MiG-21 was exported and license-built more widely than most technically superior Western fighters, shaping air combat across five decades of regional conflicts.[1]
Hundreds still serve - Chinese J-7 derivatives above all - and hundreds more are preserved in museums from Hanoi to Havana.[4] More supersonic MiG-21s were built than every Western Mach 2 fighter of its generation combined.[1]
A small number of MiG-21s remain airworthy in private warbird collections, particularly in the US, and appear at airshows; a handful of air forces still fly the type in limited reserve/training roles, occasionally visible on Flightradar24 near those bases.
| Performance | |
| Max Speed | 1,204 kn (1,385 mph / 2,229 km/h) |
|---|---|
| Cruise SpeedCruise Speed — The economical speed an aircraft sustains for the bulk of a flight - lower than maximum speed, chosen for the best balance of time and fuel burn. Glossary → | ~560 mph |
| RangeRange — How far an aircraft can fly without refuelling. Quoted figures vary with payload, speed and reserves - see also ferry range and combat radius. Glossary → | 683 mi on internal fuel; up to 1,118 mi with drop tanks |
| Service CeilingService Ceiling — The highest altitude at which an aircraft can still climb at a useful rate (typically 100 ft/min). Above it, the air is too thin to keep climbing meaningfully. Glossary → | 57,400 ft |
| Airframe & Weight | |
| Wingspan | 23 ft 6 in |
| Length | 51 ft 10 in including pitot boom |
| Height | 13 ft 5 in |
| WeightMTOW — Maximum Take-Off Weight - the heaviest an aircraft is certified to be at the start of its take-off run, including fuel, crew, payload and the aircraft itself. Glossary → | empty: 12,346 lb; loaded: 19,996 lb |
| Power & Payload | |
| Engines | 1 x Tumansky R-25-300 turbojet, 16,530 lbf thrust with afterburner (MiG-21bis) |
| ArmamentArmament — The weapons an aircraft can carry: guns, missiles, bombs and rockets, whether mounted internally, on wing hardpoints, or in bomb bays. Glossary → | 1 x 23 mm GSh-23L twin-barrel cannon; up to 4-5 hardpoints for R-3S/R-60 air-to-air missiles, rockets or bombs |
| Crew | 1 (pilot); MiG-21U/UM two-seat trainer variants carried 2 |
| CapacityPayload — Everything an aircraft is carrying that isn't the aircraft or its fuel: passengers, cargo, or weapons. Payload and fuel usually trade off against each other. Glossary → | N/A - single-seat fighter; up to 3,300 lb of external ordnance across 4-5 hardpoints |
| Program & Service | |
| Manufacturer | Mikoyan-Gurevich (MiG) |
| Origin | Russia |
| First Flight | June 14th 1955 |
| Service Entry | May 1st 1959 |
| Retired | 2025 |
| Number Built | 11,496 |
| Unit Cost | ~$5M (late production, adjusted to 2026 dollars) - original Soviet-era production cost was far lower under centrally planned economics |
8 notable events involving the MiG-21, 1970 to 2021. 21 deaths are recorded across the 6 of these with a figure listed. Curated rather than exhaustive.
During the War of Attrition, Israeli Mirage IIIs and F-4s baited Soviet-piloted Egyptian MiG-21s into an air battle over the Suez Canal, shooting down five MiG-21s in around three minutes.
In one of the largest air battles of the Yom Kippur War, roughly 62 Egyptian MiG-21s engaged around 120 Israeli Phantoms and Skyhawks over the Nile Delta. Egypt reported losing six MiG-21s in the 53-minute engagement.
Squadron Leader Ajay Ahuja's MiG-21 was brought down by Pakistani ground fire during the Kargil war. He ejected but was killed after capture, an act India condemned as murder.
Two Indian MiG-21FLs shot down a Pakistan Navy Bréguet Atlantique maritime patrol aircraft with an R-60 missile after it entered Indian airspace, killing all sixteen on board and bringing the two countries close to conflict weeks after Kargil.
An Indian Air Force MiG-21 crashed during a low-level training exercise in the Rajasthan desert in extreme heat, killing the pilot. It came amid a run of MiG crashes that had killed over 50 IAF pilots in the preceding decade.
During an India-Pakistan aerial engagement following the Balakot airstrikes, an Indian Air Force MiG-21 Bison was shot down. The pilot, Wing Commander Abhinandan Varthaman, ejected, was captured, and was returned to India after 60 hours.
Serbia's last flying MiG-21UM - the final MiG-21 built in the Soviet Union - crashed near Mali Zvornik, killing both pilots.
An Indian Air Force MiG-21 Bison crashed during a night training mission in Punjab. The pilot ejected but died of his injuries, one of three fatal MiG-21 crashes the IAF suffered that year.
| MiG-21F | Original clear-weather day fighter variant, the first mass-produced version. |
| MiG-21PF/PFM | All-weather interceptor variants with search radar and improved avionics, widely exported through the 1960s. |
| MiG-21bis | Final and most capable Soviet production standard, with a more powerful engine and modern avionics; the definitive late-Cold War version. |
| Chengdu J-7 (China) | Chinese reverse-engineered and license-derived version, produced in large numbers and further developed independently for decades. |
| HAL-built MiG-21 (India) | License-built and later upgraded ('Bison' standard) Indian Air Force version, in frontline and reserve service into the mid-2020s. |
Source: The Aviationist
Source: The War Zone
Numbered as cited in the Overview article. Click a reference to see where it's used.
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