page_title: Mil Mi-1
section_title: Variants
hierarchical_section_title: Mil Mi-1 / Variants
context_page_description: The Mil Mi-1 was a Soviet three- or four-seat light utility helicopter. It was the first Soviet helicopter to enter serial production. It is powered by one 575 hp Ivchenko AI-26V radial. It entered service in 1950 and was first seen on the 1951 Soviet Aviation Day, Tushino and was produced for 16 years. More than 1,000 were built in the USSR and 1,594 in Poland, as SM-1.
context_section_description: GM-1
  The original designation of the Mil Mi-1 prototypes, powered by a AI-26GR 500-550 hp radial engine (later AI-26GRF).
  Mi-1
  Three-seat light general-purpose helicopter, seating a pilot and two passengers, powered by a AI-26GRF 575 hp radial piston engine. Initial production model.
  Mi-1T
  Three-seat general-purpose transport helicopter, seating a pilot and two passengers, powered by a AI-26V radial piston engine.
  Mi-1KR (TKR)
  Light reconnaissance and liaison helicopter of 1956, basing on Mi-1T.
  Mi-1NKh
  Three-seat general-purpose utility helicopter, basing on Mi-1T. Designed to be used as an agricultural aircraft, air ambulance, passenger transport, air mail, freight transport helicopter (NKh—narodnoye khozyastvo—National Economy).
  Mi-1A
  Three-seat general-purpose transport helicopter of 1957, seating a pilot and two passengers, with increased reliability.
  Mi-1AKR
  Light reconnaissance and liaison helicopter, basing on Mi-1A.
  Mi-1U/TU/AU/MU
  Dual-control training helicopter variants (respectively, of basic Mi-1, T, A and M models).
  Mi-1M
  Four-seat light general-purpose helicopter of 1957, seating a pilot and three passengers. Visible changes are: raised roof above a cabin, blunter nose shape, and horizontal bottom windows' line instead of slanted.
  Mi-1M Moskvich
  Civil transport helicopter for Aeroflot, with better cabin soundproofing, equipped with hydraulic controls and an all-metal rotor.
  Mi-1MNKh
  Four-seat general-purpose utility helicopter, basing on Mi-1M. Designed to be used as an agricultural aircraft, air ambulance, passenger transport, air mail, freight transport helicopter (NKh—narodnoye khozyastvo—National Economy).
  Mi-1MG
  Float-equipped version of the Mi-1M for whaling ships, of 1958 (2 made).
  Mi-1MRK
  Prototype of a liaison helicopter, basing on Mi-1M (razvedyvatelno-korrektirovochnoi—reconnaissance-artillery correcting), tested in 1960-1962.
  Mi-1MU
  Prototype of an armed variant, tested from 1961, with four 3M11 Falanga (AT-2) or six 9M14 Malyutka (AT-3) anti-tank missiles.
  SM-1 (SM-1/300)
  Polish production version, powered by a LiT-3 radial piston engine. The Mil Mi-1 helicopter built by WSK PZL-Świdnik under licence in Poland.
  SM-1/600
  Polish production version with increased reliability of 600 hours, of 1957 (factory designation).
  SM-1Sz
  Dual-control training helicopter.
  SM-1W
  Polish production version of the Mi-1M, of 1960.
  SM-1Wb
  Polish production version of the Mi-1M, of 1963, with increased reliability of 800 hours (factory designation).
  SM-1WS
  Air ambulance helicopter.
  SM-1WSz
  Dual-control training helicopter.
  SM-1WZ
  Agricultural helicopter.
  SM-2
  Improved Polish version with a stretched fuselage, seating a pilot and four passengers.
  Mi-3
  Improved version with four bladed main rotor. Designation reused for a planned Mi-2 derivative.
caption: Four-seater Mi-1M
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