|Polish Navy Mil Mi-14PL in 2011|
|Manufacturer||Mil Moscow Helicopter Plant|
|First flight||September 1969|
|Primary users||Soviet Naval Aviation
Russian Naval Aviation
Libyan Air Force
|Developed from||Mil 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.
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 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. 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.
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. 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.
- Prototype of the Mi-14 helicopter.
- 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. 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.
- Improved anti-submarine warfare version with Os'minog ASW suite, with new search radar, dipping sonar and digital computer. Limited use.
- Polish conversion of two Mi-14PŁ (Polish designation for Mi-14PL) to search and rescue version, with ASW equipment removed, developed in 2010.
- 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.
- Mi-14PS (NATO Haze-C)
- Search and rescue version with search lights and sliding doors with hoist.
- 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.
- Amphibious firebuster version of Mi-14BT. 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.
- 24-seat civilian transport helicopter.
Data from Jane's All The World's Aircraft 1992–93
- Crew: 4
- Length: 18.38 m (60 ft 3 in)
- Rotor diameter: 21.29 m (69 ft 10 in)
- Height: 6.93 m (22 ft 9 in)
- Disc area: 356 m² (3,832 ft²)
- Empty weight: 11,750 kg (25,900 lb)
- Max. takeoff weight: 14,000 kg (30,865 lb)
- Powerplant: 2 × Klimov TV3-117MT turboshafts, 1,454 kW (1,950 shp) each
- Maximum speed: 230 km/h (124 kt)
- Ferry range: 1,135 km (705 mi)
- Service ceiling: 3,500 m (11,500 ft)
- Endurance with max fuel: 5 h, 56 min
- Related development
- Aircraft of comparable role, configuration and era
- The first retractable undercarriage to be used in a Soviet helicopter.
- Mladenov Air International March 2001, pp. 184–186.
- Mladenov Air International March 2001, p. 186.
- Gunston 1995, p. 238.
- Mladenov Air International March 2001, pp. 187–188.
- Mlandenov Air International March 2001, p. 188.
- Mladenov Air International April 2001, p. 244.
- Adam Gołąbek, Andrzej Wrona, Śmigłowce Mi-14PŁ/R w służbie, in: Lotnictwo Nr. 7/2011, pp. 40–47 (in Polish).
- Mladenov Air International April 2001, p. 245.
- Mladenov Air International April 2001, p. 246.
- "World Air Forces 2013". Flightglobal Insight. 2013. Retrieved 5 April 2013.
- "Volksmarine Mil Mi-14 "Haze"". Retrieved 5 April 2013.
- "Marineflieger Mil Mi-14 "Haze"". Retrieved 5 April 2013.
- "World Air Forces 1987 pg. 86". flightglobal.com. Retrieved 5 April 2013.
- Lambert, Mark. Jane's All the World's Aircraft 1992–93. Coulsdon, Surrey, UK: Jane's Information Group, 1992. ISBN 0-7106-0987-6.
- 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.
|Wikimedia Commons has media related to Mil Mi-14.|
- Walkaround Mi-14PL (Kiev)
- Walkaround Mi-14BT (Kiev)
- Mil Mi-14 page at Aviation.ru website
- Robert Wasilewski Mil Mi-14 page
- Mil Mi-14 for Microsoft Flight Simulator
- Mi-14 Photo Gallery