Mil Moscow Helicopter Plant Mi-26

Twin Rotorcraft

The Mil Mi-26 holds the distinction of being the world's largest and most powerful production helicopter ever built, a record it has maintained since entering service in 1983. Developed by the Soviet Union's Mil Moscow Helicopter Plant to replace the earlier Mi-6, the Mi-26 was designed to lift outsized military cargo and heavy construction equipment into remote locations where fixed-wing aircraft cannot operate. Its twin Lotarev D-136 turboshaft engines generate over 22,000 horsepower combined, enabling it to carry an internal payload of up to 44,000 pounds or sling-load even heavier external cargo—including other helicopters. The eight-blade main rotor spans 105 feet, larger than the wingspan of a Boeing 737, and the aircraft's maximum takeoff weight of 123,500 pounds places it in ICAO weight category Heavy, a classification almost never applied to rotorcraft. The Mi-26 can cruise at approximately 160 knots and has a service ceiling around 15,000 feet, though its primary mission profile involves low-altitude heavy-lift operations in austere environments. It has been operated by military forces across Russia, India, China, and several other nations, and also sees civilian use in firefighting, disaster relief, and heavy construction, where its unmatched lifting capacity makes it irreplaceable. Notable missions include airlifting frozen woolly mammoths for scientific study, transporting entire houses, and delivering humanitarian aid to earthquake zones. Despite its age, no helicopter has surpassed the Mi-26's raw lifting capability, and production continues in limited numbers at the Rostvertol plant in Russia.