|Mi-2 of the Polish Air Force|
|Design group||Mil Moscow Helicopter Plant|
|First flight||22 September 1961|
|Primary users||Soviet Air Force|
Polish Armed Forces
|Developed from||Mil Mi-1|
Design and development
The first production helicopter in the Soviet Union was the Mil Mi-1, modelled along the lines of the S-51 and Bristol Sycamore and flown by Mikhail Mil's bureau in September 1948. During the 1950s it became evident, and confirmed by American and French development, that helicopters could be greatly improved with turbine engines. S. P. Isotov developed the GTD-350 engine and Mil used two of these in the far superior Mi-2.
The twin shaft-turbine engines used in the Mi-2 develop 40% more power than the Mi-1's piston engines, for barely half the engine weight, with the result that the payload was more than doubled. The Mi-2 fuselage was extensively altered from its predecessor, with the engines mounted overhead. However, the external dimensions remained similar.
The Mil-built prototype first flew in the Soviet Union on 22 September 1961, after the initial development the project was transferred to Poland in 1964. The first Świdnik-built example flew on 4 November 1965 (making this the only Soviet-designed helicopter to be built solely outside the Soviet Union). PZL-Świdnik produced a total of 5,497 helicopters, about a third for military users. The factory also developed fiberglass rotor blades, and developed the wide-body Mi-2M seating 10 passengers instead of eight. Most typical role-change kits include four stretchers for air ambulance usage, or aerospraying or cropdusting applications.
In Poland, several specialized military variants were also developed for support or reconnaissance roles, with 23 mm autocannon, machine guns and/or two 57 mm rocket pods, four 9K11 Malyutka anti-tank missiles or Strela-2 AA missiles. The helicopter is also used to spray agricultural chemicals by private owners in Ukraine. 2 were killed in a crash in 2021 near Zaive in the region of Mykolaiv. 
The Mi-2 was first introduced into the Soviet Air Force in 1965. The Mi-2 is used by mainly former Soviet and Eastern Bloc countries, although it was also purchased by Mexico and Myanmar armed forces.
During the 2022 Russian invasion of Ukraine, Russian forces were recorded capturing three Mi-2 helicopters in Kherson International Airport.
This section needs additional citations for verification. (January 2021)
- First prototype.
- Armament prototype.
- Mi-2 Platan
- Aerial minelayer version.
- Upgraded export version for the Middle East, fitted with improved systems and navigational aids.
- Mi-2Ch Chekla
- Chemical reconnaissance / smokescreen layer version.
- Mi-2D Przełącznik
- Aerial command post equipped with R-111 radio.
- Survey version.
- Passenger / cargo version, with accommodation for 6 passengers.
- Agricultural version.
- Land rescue/ambulance version.
- Sea rescue version equipped with electric winch for two people and dropped rafts.
- Reconnaissance version equipped with cameras.
- Reconnaissance trainer version.
- Mi-2RS Padalec ('Slowworm')
- Chemical and biohazard reconnaissance version.
- Air ambulance version, equipped to carry four stretcher, plus an attendant.
- Dual-control training version.
- Cargo/utility version.
- Dual-control training version.
- Armed version fitted with a fixed 23mm NS-23 cannon, 4 x 7,62mm PKT machine gun pods and optional cabin PK machine gun.
- Mi-2URN Żmija ('Viper')
- Armed reconnaissance variant armed with a fixed 23mm NS-23 gun and two 16x57mm S-5 unguided rocket pods Mars-2. Optional 7,62mm PK machine gun window-mounted.
- Mi-2URP Salamandra ('Salamander')
- Gunship and anti-tank variant, armed with 23mm NS-23 gun, optional window-mounted 7,62mm PK machine gun, and 4x AT-3 Sagger (9M14M Malutka) wire-guided missiles on external weapons racks and 4x additional missiles in the cargo compartment.
- Mi-2URP-G Gniewosz ('Smooth snake')
- Mi-2URP with additional 4x AA missiles Strzała-2 (Strela 2) in two Gad rocket launchers.
- Mi-2 Plus
- Upgraded Mi-2 with uprated GTD-350W2 engines, all-composite rotor blades, new avionics and other modifications.
- Planned Mi-2 derivative that lacked suitable engines for the program to continue.
- Mi-2MSB or MSB-2 Nadia ('Hope')
- Modernized by Motor Sich to passenger-transport version for the civil aviation.
- Mi-2MSB-V or MSB-2MO
- Modernized by Motor Sich for Ukrainian Air Force., Original engine replaced with AI-450M 465 hp (347 kW) engine, armed with rocket and machine gun pods, IR-jamming system and flares dispenser for defence against MANPADS.
Data from Jane's All The World's Aircraft 1982–83
- Crew: One
- Capacity: 8 passengers / 700 kg (1,543 lb) internal cargo / 800 kg (1,764 lb) external cargo
- Length: 11.4 m (37 ft 5 in)
- Height: 3.75 m (12 ft 4 in)
- Empty weight: 2,372 kg (5,229 lb)
- Gross weight: 3,550 kg (7,826 lb)
- Max takeoff weight: 3,700 kg (8,157 lb)
- Powerplant: 2 × PZL GTD-350P turboshaft engines, 300 kW (400 shp) each
- Main rotor diameter: 14.5 m (47 ft 7 in)
- Main rotor area: 165.15 m2 (1,777.7 sq ft)
- Blade section: NACA 23012M
- Maximum speed: 200 km/h (120 mph, 110 kn)
- Range: 440 km (270 mi, 240 nmi) (max internal fuel, no reserves)
- Service ceiling: 4,000 m (13,000 ft)
- Rate of climb: 4.5 m/s (890 ft/min)
- Disk loading: 22.41 kg/m2 (4.59 lb/sq ft)
- Power/mass: 0.0806 kW/kg (0.0490 hp/lb)
Aircraft of comparable role, configuration, and era
- Ми-2, "avia.cybernet.name"
- "2 killed in helicopter crash in Ukraine". 17 July 2021.
- "Russia Captured Three Of Ukraine's Smallest Helicopters. So Ukraine's Allies Sent Three Replacements". Forbes. 18 August 2022.
- Il'yashenko, Matviy. "First flight of upgraded helicopter Mi-2MSB - Motor Sich". www.motorsich.com. Retrieved 2016-10-03.
- Il'yashenko, Matviy. "The Mi-2 upgraded helicopter passed an altitude of 7 thousand meters. - Motor Sich". www.motorsich.com. Retrieved 2016-10-03.
- Karpenko, A.V. "Modernized helicopter Mi-2MSB (Ukraine)". bastion-karpenko.ru. Retrieved 2016-10-03.
- "Ukrainian Military Helicopters - Modernization And Development Plans". Retrieved 2016-10-03.
- "Mi-2MSB - Ukrainian Combat Variant Of The Mi-2 Helicopter". Defence24.com.
- Hoyle and Farfad Flight International 10–16 December 2019, p. 33.
- "World Air Forces 2022". Flightglobal. 2022. Retrieved 10 July 2022.
- TEMPO Edisi 19-25 Maret 2007 (pp. 36-37)
- ANGKASA No.07 Edisi April 2007 (p. 16)
- Hoyle and Farfad Flight International 10–16 December 2019, p. 43.
- Hoyle and Farfad Flight International 10–16 December 2019, p. 44.
- Hoyle and Farfad Flight International 10–16 December 2019, p. 45.
- Hoyle and Farfad Flight International 10–16 December 2019, p. 46.
- Hoyle and Farfad Flight International 10–16 December 2019, p. 47.
- "Poland Border Guard Aircraft Types". aeroflight.co.uk. Retrieved 12 February 2013.
- Hoyle and Farfad Flight International 10–16 December 2019, pp. 47–48.
- Hoyle and Farfad Flight International 10–16 December 2019, p. 48.
- Hoyle and Farfad Flight International 10–16 December 2019, p. 50.
- Hoyle and Farfad Flight International 10–16 December 2019, p. 52.
- "United States Army Threat Systems Management Office (TSMO)". angelfire.com. Retrieved 12 February 2013.
- "Operator Performance Labs". opl.uiowa.edu. Retrieved 12 February 2013.
- "Bulgaria Air Force - Equipment". globalsecurity.org. Retrieved 12 February 2013.
- "Bulgarian (PZL-Swidnik) Mi-2". Demand media. Retrieved 12 February 2013.
- "Cuba Air Force Aircraft Types". aeroflight.co.uk. Retrieved 12 February 2013.
- "World Air Forces 2018". Flightglobal Insight. 2018. Retrieved 4 August 2018.
- "Djibouti Air Force Aircraft Types". xairforces.net. Retrieved 10 February 2011.
- "Estonia Air Force - Equipment". globalsecurity.org. Retrieved 12 February 2013.
- "Germany East Air Force". nationalcoldwarexhibition.org. Retrieved 12 February 2013.
- "East-Germany Mil Mi-2". Demand media. Retrieved 12 February 2013.
- "Mil Mi-2 datbase". helicopter-database.de. Retrieved 12 February 2013.
- "Polizei Mil Mi-2 (PZL-Swidnik)". Demand media. Retrieved 12 February 2013.
- "Hungarian Air Force History". globalsecurity.org. Retrieved 12 February 2013.
- "Hungary Police Aviation". aeroflight.co.uk. Archived from the original on 11 January 2013. Retrieved 12 February 2013.
- "Hungary Police Mil Mi-2". Demand media. Retrieved 12 February 2013.
- "Lithuanian Air Force - Equipment". globalsecurity.org. Retrieved 12 February 2013.
- "Lithuania - Air Force Mil Mi-2". jetphotos.net. Archived from the original on 8 May 2015. Retrieved 12 February 2013.
- "Mexican Armada". aeroflight.co.uk. Retrieved 15 February 2013.
- World Air Forces - Historical Listings Mongolia (MON) Archived 2012-09-05 at the Wayback Machine. worldairforces.com. Retrieved on 2013-08-27.
- "World Air Forces 2013" (PDF). Flightglobal Insight. Retrieved 15 February 2013.
- "Lotnicze Pogotowie Ratunkowe » Ostatni lot Mi-2" (in Polish). Retrieved 2021-03-22.
- "Mi-2 Helicopter. History of Development". Archived from the original on 30 March 2012. Retrieved 15 February 2013.
- "Ukraine - Air Force Equipment". globalsecurity.org. Retrieved 12 February 2013.
- "Mi-2 DataBase". helicopter-database.de. Retrieved 12 February 2013.
- "Aeroflot Mil Mi-2". jetphotos.net. Archived from the original on 28 June 2015. Retrieved 12 February 2013.
- "Yugoslavian use of Mil Mi-2 in military and air ambulance use". Retrieved 9 March 2015.
- Taylor 1982, pp. 169–170.
- Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.
- Hoyle, Craig and Fafard, Antoine. "World Air Forces Directory". Flight International, 10–16 December 2019, Volume 196, issue 5716. pp. 26–54.
- Mondey, David, Encyclopedia of The World's Commercial and Private Aircraft. Crescent Books, New York NY, 1981. p. 245, "WSK-Swidnik Mi-2 Hoplite"
- Taylor, John W. R. Jane's All The World's Aircraft 1982–83. London: Jane's Yearbooks, 1982. ISBN 0 7106-0748-2.
- Mi-2 DataBase
- Mi-2 Photo Gallery