Mil Mi-14

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Manewry NATO Noble Mariner (cropped).jpg
Polish Navy Mil Mi-14PL in 2011
Role Anti-submarine helicopter
Manufacturer Mil Moscow Helicopter Plant
First flight September 1969
Introduction 1975
Status In service
Primary users Soviet Navy
Russian Navy
Ukrainian Navy
Polish Navy
Produced 1969-1986
Number built 230
Developed from Mil Mi-8

The Mil Mi-14 (Russian: Миль Ми-14, NATO reporting name: Haze) is a Soviet shore-based nuclear-capable amphibious anti-submarine helicopter derived from the earlier Mi-8.

Design and development[edit]

Formal development of an anti-submarine warfare (ASW) version of the Mil Mi-8 transport helicopter was authorised by the Soviet Communist Party Central Committee and Council of Ministers in April 1965, with the objective of replacing the Mil Mi-4 in the short-range, shore based anti-submarine role. The new helicopter was required to have an endurance of 2 hours on station at a radius of 222 kilometres (120 nmi; 138 mi) from base.[1]

The new design (with the internal designation V-14) differed from the Mi-8 in having a boat-like hull similar to the Sea King, allowing it to operate off the water, and a retractable four-point undercarriage,[N 1] with the mainwheels retracting into large sponsons on the rear of the fuselage. The helicopter was to be powered by two Klimov TV3-117MT turboshaft engines.[2] A watertight weapons bay is fitted to the centreline of the fuselage allowing internal carriage of a single torpedo or eight depth charges, while a radome housing a search radar is fitted beneath the nose.[2][3]

The first prototype V-14, converted from a Mi-8 and powered by the older and less powerful Klimov TV2-117 engines, flew on 1 August 1967.[2] Development was slowed by problems with the helicopter's avionics and due to reliability problems with the TV3-117 engines, with production at Kazan not starting until 1973, and the helicopter (now designated Mi-14) entering service on 11 May 1976.[2]

In January 2016, Russian Helicopters confirmed to Russian News Agency TASS that no final decision to revive production had been taken, but market demand, feasibility studies – including with Moscow's defence ministry – and funding sources were under review. The programme remains a “priority” for Russian Helicopters. The company suggested the Mi-14 would appeal to civil operators in Russia's far north and those supplying the oil and gas industry, alongside the nation's armed forces. Out of the almost 300 Mi-14s produced at Kazan Helicopters between 1973 and 1986, it is estimated that just 44 examples remain in active service.[4]


Georgian Mi-14
Prototype of the Mi-14 helicopter.[3]
Mi-14PL (NATO Haze-A)
Anti-submarine warfare helicopter, equipped with towed APM-60 MAD, OKA-2 sonobuoys and a retractable Type 12-M search radar, armed with a single AT-1 or APR-2 torpedo, one Skat nuclear depth bomb, eight depth charges.[3][5] A single Mi-14PL was used to carry out trials with the Kh-23 (NATO designation AS-7 Kerry) air-to-surface missile but this modification does not seem to have entered service.[6]
Improved anti-submarine warfare version with Os'minog ASW suite, with new search radar, dipping sonar and digital computer. Limited use.[7]
Polish conversion of two Mi-14PŁ (Polish designation for Mi-14PL) to search and rescue version, with ASW equipment removed, developed in 2010.[8]
Mi-14BT (NATO Haze-B)
Mine sweeping helicopter with ASW systems removed and equipped for towing Mine Countermeasures sleds. 25–30 built, with six exported to East Germany and two to Bulgaria.[7]
Mi-14PS (NATO Haze-C)
Search and rescue version with search lights and sliding doors with hoist.[9]
Search and rescue training helicopter for the Polish Navy (unofficial designation). One Polish Mi-14PŁ helicopter was temporarily converted into the Mi-14PX, then converted back in 1996.[8]
Polish Navy's Mi-14PŁ on display at Radom Air Show 2005
Amphibious firebuster version of Mi-14BT.[10] Conversion price about USD1M.
Mi-14PZh Eliminator III
Mi-14BT helicopters converted into fire fighting aircraft.
Conversion of Mi-14PL to 24–26 seat civil passenger transport.[10]
24-seat civilian transport helicopter.


By 1991, about 230 had been delivered, with exports to many Soviet allies including Bulgaria, Cuba, East Germany, Libya, Poland, and Syria.

Current operators[edit]

Polish Navy Mi-14PS
 North Korea
 Republic of the Congo
Ukrainian Navy Mi-14PL

Former operators[edit]

 East Germany
 Soviet Union

Specifications (Mi-14PL)[edit]

Mil Mi-14 orthographical image.svg

Data from Jane's All The World's Aircraft 1992–93[18]

General characteristics

  • Crew: 4
  • Length: 18.38 m (60 ft 4 in)
  • Height: 6.93 m (22 ft 9 in)
  • Empty weight: 11,750 kg (25,904 lb)
  • Max takeoff weight: 14,000 kg (30,865 lb)
  • Powerplant: 2 × Klimov TV3-117MT turboshaft engines, 1,454 kW (1,950 hp) each
  • Main rotor diameter: 21.29 m (69 ft 10 in)
  • Main rotor area: 356 m2 (3,830 sq ft)
  • Blade section:NACA 23012[19]


  • Maximum speed: 230 km/h (140 mph, 120 kn)
  • Ferry range: 1,135 km (705 mi, 613 nmi)
  • Endurance: 4 hours with maximum fuel[20]
  • Service ceiling: 3,500 m (11,500 ft)


See also[edit]

Related development

Aircraft of comparable role, configuration, and era



  1. ^ The first retractable undercarriage to be used in a Soviet helicopter.[2]


  1. ^ Mladenov Air International March 2001, pp. 184–186.
  2. ^ a b c d e Mladenov Air International March 2001, p. 186.
  3. ^ a b c Gunston 1995, p. 238.
  4. ^ "Russian Helicopters still analysing revival of Mi-14 amphibian". FlightGlobal. 12 January 2016.
  5. ^ Mladenov Air International March 2001, pp. 187–188.
  6. ^ Mlandenov Air International March 2001, p. 188.
  7. ^ a b Mladenov Air International April 2001, p. 244.
  8. ^ a b Adam Gołąbek, Andrzej Wrona, Śmigłowce Mi-14PŁ/R w służbie, in: Lotnictwo Nr. 7/2011, pp. 40–47 (in Polish).
  9. ^ Mladenov Air International April 2001, p. 245.
  10. ^ a b Mladenov Air International April 2001, p. 246.
  11. ^ a b c d e f g h "World Air Forces 2018". Flightglobal Insight. 2018. Retrieved 1 December 2017.
  12. ^ a b c "World Air Forces 2013" (PDF). Flightglobal Insight. 2013. Retrieved 5 April 2013.
  13. ^ "Volksmarine Mil Mi-14 "Haze"". Retrieved 5 April 2013.
  14. ^ "Lithuanian company to help maintain Ethiopian Air Force aircraft". defenceWeb. 2016-03-22. Retrieved 2021-06-22.
  15. ^ "Marineflieger Mil Mi-14 "Haze"". Retrieved 5 April 2013.
  16. ^ "World Air Forces 1987 pg. 86". Retrieved 5 April 2013.
  17. ^ "World Air Forces 1997 pg. 71". Retrieved 5 April 2013.
  18. ^ Lambert, Mark; Munson, Kenneth; Taylor, Michael J.H., eds. (1992). Jane's all the world's aircraft 1992–93 (83rd ed.). Coulson, Surrey, UK: Jane's Information Group. ISBN 978-0710609878.
  19. ^ Lednicer, David. "The Incomplete Guide to Airfoil Usage". Retrieved 16 April 2019.
  20. ^


  • Gunston, Bill. The Osprey Encyclopedia of Russian Aircraft 1875–1995. London: Osprey, 1995. ISBN 1-85532-405-9.
  • Mladenov, Alexander. "Cutting through the Haze". Air International, March 2001, pp. 184–188. ISSN 0306-5634.
  • Mladenov, Alexander. "Cutting through the Haze: Part 2". Air International, April 2001, pp. 244–247. ISSN 0306-5634.

The initial version of this article was based on material from It has been released under the GFDL by the copyright holder.

External links[edit]