Engineering:Mil Mi-14

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Mi-14
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

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]

Variants

Georgian Mi-14
V-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]
Mi-14PLM
Improved anti-submarine warfare version with Os'minog ASW suite, with new search radar, dipping sonar and digital computer. Limited use.[7]
Mi-14PŁ/R
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]
Mi-14PX
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]
Mi-14PZh
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.
Mi-14GP
Conversion of Mi-14PL to 24–26 seat civil passenger transport.[10]
Mi-14P
24-seat civilian transport helicopter.

Operators

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

Current operators

 Georgia
Polish Navy Mi-14PS
 Libya
 North Korea
 Poland
 Republic of the Congo
 Syria
Libyan Air Force Mi-14
Ukrainian Navy Mi-14PL
 Ukraine
 Yemen

Former operators

 Bulgaria
 Cuba
 East Germany
  • East German Navy[13]
    Mi-14BT at Aerotec International
 Ethiopia
 Germany
 Russia
  • Russian Naval Aviation[12]
 Soviet Union
  • Soviet Naval Aviation[16]
 Yugoslavia

Specifications (Mi-14PL)

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]

Performance

  • 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)

Armament

See also

Related development

Aircraft of comparable role, configuration and era

  • Sikorsky S-61R

References

Notes

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

Citations

  1. ↑ Mladenov Air International March 2001, pp. 184–186.
  2. ↑ 2.0 2.1 2.2 2.3 2.4 Mladenov Air International March 2001, p. 186.
  3. ↑ 3.0 3.1 3.2 Gunston 1995, p. 238.
  4. ↑ "Russian Helicopters still analysing revival of Mi-14 amphibian". FlightGlobal. 12 January 2016. https://www.flightglobal.com/news/articles/russian-helicopters-still-analysing-revival-of-mi-14-420733/. 
  5. ↑ Mladenov Air International March 2001, pp. 187–188.
  6. ↑ Mlandenov Air International March 2001, p. 188.
  7. ↑ 7.0 7.1 Mladenov Air International April 2001, p. 244.
  8. ↑ 8.0 8.1 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. ↑ 10.0 10.1 Mladenov Air International April 2001, p. 246.
  11. ↑ 11.0 11.1 11.2 11.3 11.4 11.5 11.6 11.7 "World Air Forces 2018". Flightglobal Insight. 2018. https://www.flightglobal.com/news/articles/analysis-world-air-forces-maintaining-strength-443655/. 
  12. ↑ 12.0 12.1 12.2 "World Air Forces 2013". Flightglobal Insight. 2013. http://www.flightglobal.com/airspace/media/reports_pdf/emptys/101015/world-air-forces-2013.pdf. 
  13. ↑ "Volksmarine Mil Mi-14 "Haze"". http://www.helis.com/database/modelorg/1906/. 
  14. ↑ "Lithuanian company to help maintain Ethiopian Air Force aircraft". defenceWeb. 2016-03-22. https://www.defenceweb.co.za/aerospace/aerospace-aerospace/lithuanian-company-to-help-maintain-ethiopian-air-force-aircraft/. Retrieved 2021-06-22. 
  15. ↑ "Marineflieger Mil Mi-14 "Haze"". http://www.helis.com/database/modelorg/1907/. 
  16. ↑ "World Air Forces 1987 pg. 86". flightglobal.com. http://www.flightglobal.com/pdfarchive/view/1987/1987%20-%202536.html. 
  17. ↑ "World Air Forces 1997 pg. 71". flightglobal.com. http://www.flightglobal.com/pdfarchive/view/1997/1997%20-%202331.html. 
  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". https://m-selig.ae.illinois.edu/ads/aircraft.html. 
  20. ↑ "Mi-14 Haze". http://fas.org/man/dod-101/sys/ac/row/mi-14.htm. 

Bibliography

  • 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 aviation.ru. It has been released under the GFDL by the copyright holder.

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