The Mil Mi-8 Hip: how the Soviet Union built the world’s helicopter

How the Mil Mi-8 Hip works: engines, rotor and that enormous cabin

Mil Mi-8 / Mi-17 Hip specifications: dimensions, performance and cost

Baseline note: the figures below describe the Mi-8MTV-5, exported as the Mi-17V-5 (NATO: Hip-H) — the second-generation, TV3-117VM-engined, rear-ramp standard that is the most widely delivered military Hip of the last thirty years and the version still coming off the lines at Kazan and Ulan-Ude. The original Mi-8T (Hip-C) of 1967 is a materially different aeroplane: TV2-117 engines of barely two-thirds the power, a starboard pusher tail rotor, clamshell rear doors instead of a ramp, and a hover ceiling low enough to matter in the mountains. The Mi-8AMTSh (Mi-171Sh, marketed as the "Terminator") is the Ulan-Ude-built armed assault version with armour, an electro-optical turret and guided missiles. Deltas for those marks are in grey. Published Hip figures vary widely because the family spans sixty years and dozens of sub-marks; where Jane’s and the manufacturer disagree the better-attested value is given and the alternative noted.

Armament & payload

The Hip can be armed heavily, but its real payload is twenty-four soldiers and four tonnes of freight

Armed Mi-8s carry a genuinely serious load — six pylons, up to 1,500 kg of stores in practice, rocket pods, gun pods, bombs and on the Mi-8AMTSh guided anti-tank missiles. Crews in Afghanistan and Chechnya used all of it. But it is worth being blunt about what this is: a fifteen-tonne transport helicopter with weapons bolted to the sides. It is large, it is not agile, its sight is a simple collimating reticle on most marks, and it cannot manoeuvre or absorb damage the way a purpose-built gunship can. Against an unsuppressed heavy machine gun it is a big target; against a MANPADS it is a very big one. The Mi-24 exists precisely because the Soviet Army tried the armed Mi-8 first and found it wanting. What the armed Hip does well is escort and support its own transports on a mission it was already flying — suppressing a landing zone, working over a treeline, covering an extraction — and doing so with the same airframe, the same crews and the same spares as the transports.

The transport numbers are the ones that decided wars. Twenty-four troops, or twelve stretchers with an attendant, or four tonnes in the cabin, or four tonnes under the belly hook. Clamshell rear doors on the first generation, a proper hydraulic loading ramp on the Mi-8MTV-5 and Mi-171Sh, and a cargo box square enough to swallow a light vehicle or a howitzer trail. Almost every Hip ever built has spent most of its life doing that rather than shooting at anything. Fits vary enormously by mark and operator; an Mi-8T with two rocket pods and an Mi-171Sh with a turret, Ataka missiles and armour are separated by forty years and are barely the same weapons system.

Sourcing caveat: Russian and export brochure loads differ from what units actually fly, and few operators publish their standard fits. Pylon counts vary by mark — four on the Mi-8T and Mi-8MTV-3, six on most other armed marks — and several second-generation aircraft in Ukrainian, Georgian and African service carry locally integrated stores that appear in no manufacturer’s document.

Variants

Two generations of Hip, one designation, and an export nameplate that confuses almost everyone

The Mi-8 splits cleanly in two. The first generation — Mi-8T, Mi-8P and their relatives — runs on TV2-117 engines, has a starboard pusher tail rotor and clamshell rear doors, and dates from the mid-1960s. The second generation, from the Mi-8MT of 1975, has TV3-117 engines, a port-side tractor tail rotor, oval exhausts with infrared suppressors, engine intake dust filters and considerably more armour. Everything since is a development of that.

The naming is the part that trips people up. Mi-17 is not a different helicopter: it is the export designation for the second-generation Mi-8M series, adopted because "Mi-8" had come to mean the older aircraft in foreign eyes. The same airframe from Kazan is an Mi-8MTV at home and an Mi-17V-5 abroad; from Ulan-Ude it is an Mi-8AMT at home and an Mi-171 abroad. Most of the world’s "Mi-8" fleets are in fact Mi-17s or Mi-171s, and a great many published operator tables silently mix the three.

V-8 / V-8A (1961–64, 5 prototypes)

Single-engine V-8 flew first; the twin-engine V-8A of August 1962 was the first Soviet helicopter with purpose-built turboshafts. The fourth prototype swapped the four-blade rotor for five to cure vibration.

Mi-8T (Hip-C, 1965–90s, several thousand)

The original military transport: TV2-117 engines, clamshell doors, round windows, 24 troops, and provision for four pylons. The aircraft most people picture when they hear "Mi-8".

Mi-8P / Mi-8PS (1965–, civil)

Civil passenger version with large square cabin windows and 28 airline seats; the PS is the VIP fit. Aeroflot took hundreds and flew them on scheduled routes into places with no runway.

Mi-8TV / Mi-8TB (Hip-E/F, 1970s)

The first properly armed Hip — six pylons, a 12.7 mm bow gun and four 9M17 Falanga missiles. Heavily armed, and the experiment that convinced the Soviet Army it needed the purpose-built Mi-24 instead.

Mi-8MT / Mi-17 (Hip-H, 1975–)

The second generation. TV3-117MT engines, port tractor tail rotor, dust filters, infrared suppressors. Exported as the Mi-17 from 1981 and the basis of everything that followed.

Mi-8MTV / Mi-17-1V (1980s–)

The hot-and-high mark, with high-altitude TV3-117VM engines that lifted the service ceiling to 6,000 m and the out-of-ground-effect hover to nearly 4,000 m. Developed with Afghanistan directly in mind.

Mi-8MTV-5 / Mi-17V-5 (1996–, several hundred)

The current Kazan military standard and the baseline here: rear loading ramp in place of clamshell doors, a bulged "dolphin" nose for extra avionics and freight, an extra port door, night-vision-compatible lighting. India took 151, Russia over 130.

Mi-8AMT / Mi-171 (1991–, Ulan-Ude)

Ulan-Ude’s parallel line, sold heavily on the civil market. The Mi-171E is cleared from −50 to +50 °C; the certificated Mi-171A2 and offshore Mi-171A3 are the modern civil offering.

Mi-8AMTSh / Mi-171Sh (2002–, "Terminator")

The armed assault version: armour, an electro-optical turret, 9M120 Ataka missiles, President-S countermeasures. Bought by Russia, China, Algeria, Peru, Czechia, Croatia, Ghana and Bangladesh. The Mi-8AMTSh-VN "Sapsan" is the special-forces fire-support development.

Mi-8MTPR-1 (2014–, ~18 for Russia)

Electronic-warfare conversion of the Mi-8MTV-5-1 carrying the Rychag-AV jammer against air-defence and airborne radars. One of the more genuinely useful modern Hip derivatives, and one Ukraine has hunted deliberately.

Mi-14 (Haze, 1973–86, ~270)

Not an Mi-8 variant but a direct derivative: an amphibious anti-submarine helicopter with a boat hull and sponsons, built on Mi-8MT dynamics. Worth listing because it is where a good deal of second-generation engineering was proved.

Closing caveat: this list is a fraction of the whole. Russian and export sub-marks run into the hundreds — at least a dozen distinct electronic-warfare fits alone, plus command posts, signals-intelligence aircraft, minelayers, flying hospitals, aerial-survey and geophysical conversions, and licence-adjacent Chinese assembly of the Mi-171 at Sichuan Lantian. Production totals for individual marks are unpublished; the figures above are best estimates from plant statements and delivery reporting rather than audited numbers.

The Mil Mi-8 Hip: a timeline from the V-8 prototype to the Mi-171

The Mil Mi-8 Hip in action: notable roles, wars and variants

Mil Mi-8 / Mi-17 Hip photos: the world’s helicopter up close

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The Mil Mi-8 Hip on screen: the most-produced helicopter in history

Matsimus · “Why is there hate for the Mi-8 / Mi-17 Helicopter?” — an established military-aviation channel walks through the Mi-8/Mi-17’s design, versatility and reputation as the most-produced helicopter in history (170k+ views).

Where the Mil Mi-8 Hip flies: origin, combat use and operators

Operators today

The Hip serves with more air forces than any other helicopter, and no two of them count it the same way

Somewhere well over fifty air forces fly the Mi-8/Mi-17 family today, plus paramilitary services, police forces, disaster agencies and a large civil fleet; earlier tallies of around eighty countries include historical operators. Counting it is genuinely hard. Most foreign "Mi-8" fleets are actually Mi-17 or Mi-171 export variants; national inventories mix first- and second-generation airframes under one line; and a Hip that has not flown in five years still appears on paper. The figures below are rounded estimates for the largest military fleets, and only where two independent sources agreed.

These are estimates and should be read as orders of magnitude, not inventories. Russia’s figure is the widest: analysts working from procurement records put roughly 300 Mi-8s with the Aerospace Forces proper, while counts that include naval aviation, the FSB Border Service, the National Guard and other ministries run past 500. China’s figure is the People’s Liberation Army Ground Force Aviation total alone; India’s rests on 151 Mi-17V-5 delivered by 2016 plus surviving earlier Mi-17 and Mi-17-1V. Other substantial fleets — Kazakhstan, Peru, Venezuela, Poland, Mexico, Colombia, Belarus, Indonesia, Vietnam, Nigeria and around forty more — are omitted only because published counts for them could not be corroborated from two sources, not because they are small. Afghanistan’s status is unresolved: the Taliban inherited a substantial Mi-17 fleet in 2021, but how much of it is airworthy is unknown. Sources: IISS The Military Balance and FlightGlobal World Air Forces; entries that could not be corroborated are omitted.

The Mil Mi-8 Hip in combat: from Afghanistan to today

The Mi-8/Mi-17 is one of the most combat-used helicopters ever built, in continuous frontline service since the 1960s. It has flown as troop transport, supply ship, casualty-evacuation aircraft and, in its armed versions, as a gunship — from the Soviet war in Afghanistan through conflicts across Africa, the Middle East, Asia and, most recently, Ukraine. Specific loss and production figures vary between sources and should be treated as estimates.

Compare the Explore the combat record of every military aircraft. Data as of July 2026.

Mil Mi-8 / Mi-17 Hip: frequently asked questions

More from the Military Aircraft Encyclopedia

Mil Mi-8 / Mi-17 Hip: sources & further reading

• Russian HelicoptersRussian Helicopters — official manufacturer of the Mi-8/Mi-17/Mi-171 family, overviews and specifications.
• Russian Ministry of DefenceRussian Ministry of Defence — service context for the Mi-8/Mi-17 in Russian military use.
• Airforce TechnologyAirforce Technology — detailed Mi-17 Hip dimensions, powerplant, performance and variants.
• BAE / industry referencesBAE / industry references — general context on rotary-wing avionics and upgrades.
• GlobalSecurity.orgGlobalSecurity.org — Mi-8/Mi-17 variant histories and programme background.
• Imperial War MuseumImperial War Museum — context on Cold War and Soviet military aviation.
• Smithsonian National Air and Space MuseumSmithsonian National Air and Space Museum — context on rotary-wing aviation.
• MiGFlug AfterburnerMiGFlug Afterburner — the magazine behind this encyclopedia, on military aviation and jet flights.

Hero and gallery photography: U.S. Air Force / NASA, public domain. Combat statistics as of July 2026. Spotted an error? Every page in the Aircraft Museum is fact-checked before publication — write to us and we’ll correct it.