631

631 is a Mil Moscow Helicopter Plant Mi-8. SkyMeter has tracked 258 flights totalling 139 hours of airtime via ADS-B. The most frequent segment is EPMB to EPMB. Service window in our records spans 203 days. Of those flights, 8 (3.1%) carry at least one detected incident: a go-around, unstable approach, stall warning, or runway excursion. The Mil Moscow Helicopter Plant Mi-8 has a maximum takeoff weight of 28,660 lb, medium wake category.

About the Mil Moscow Helicopter Plant Mi-8

The Mil Mi-8 is the most produced helicopter in aviation history, with over 17,000 airframes built since its first flight in 1961. Designed by the Soviet Union's Mil Moscow Helicopter Plant as a medium twin-turbine transport, the Mi-8 became the backbone of Soviet military and civilian aviation and remains in widespread service across more than 80 countries today. Its NATO reporting name "Hip" reflects its Cold War origins, but the type's rugged simplicity and load-carrying capability have made it equally popular with commercial operators, humanitarian missions, and resource extraction companies operating in remote environments.

The Mi-8's twin Klimov TV3-117 turboshaft engines deliver exceptional hot-and-high performance, allowing operations from unprepared sites at altitudes where Western helicopters struggle. Typical configurations carry 24 passengers or 4,000 kg of cargo internally, with an external sling capacity of 3,000 kg. Maximum cruise speed reaches 140 knots with a service ceiling of 14,750 feet and range of approximately 290 nautical miles.

Variants include the baseline Mi-8T transport, the upgraded Mi-8MTV with more powerful engines and avionics, and the Mi-17 export designation (which confusingly refers to Mi-8MT variants with tail rotor repositioned to starboard). The type's reputation for mechanical reliability and ease of maintenance in austere conditions has kept it commercially viable decades after production of competing Western designs ceased. Military operators value its ability to mount rockets, gun pods, and anti-tank missiles, transforming the transport into a formidable gunship.

SkyMeter has tracked flights across airframes and operators over routes, with the largest observed operator.