Post by Stingray on Jul 14, 2008 20:28:42 GMT -4
Mil V-8
1961
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www.aviastar.org/helicopters_eng/mi_v8.php
Mi-8 prototype incorporating Mi-4 main rotor and transmission and one 2700shp Soloviev AI-24V turbine mounted on top of fuselage. First flown on 24 June 1961. Subsequently fitted with 5-blade rotor and two 1400shp Isotov TV2-117 engines.
Technical data for V-8
Crew: 3, passengers: 18, engine: 1 x AI-24V turboshaft, rated at 1425kW, main rotor diameter: 21.0m, take-off weight: 11200kg, empty weight: 5726kg, payload: 1500-2000kg
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Mil Mi-8 "Hip"
1964
www.aviastar.org/helicopters_eng/mi-8.php
The third of Mikhail Mil's current quartet of turbine-powered helicopters, the Mi-8, appeared in prototype form towards the end of 1961. In broad terms it bears the same relationship to the Mi-4 as the Mi-2 has to the Mi-1, and (initially at least) the rotor hub, rotor blades, rear fuselage boom and certain undercarriage components were similar to those employed in the Mi-4. The original prototype was powered by a single 2700shp Soloviev shaft turbine mounted over the cabin roof, but in the second machine, which flew for the first time on 17 September 1962, this was replaced by two of the smaller Isotov engines of 1500shp each. The latter has been the standard installation on all subsequent aircraft, the only major design change being the substitution of a 5-blade rotor for the original 4-blade one in 1964.
Intended primarily for Aeroflot, the Mi-8 carries a 2- or 3-man crew and has seating accommodation for up to 28 passengers in its standard airline form. Alternative internal arrangements include a de luxe saloon cabin for executive travel or a cargo layout for an internal payload of 4000kg. Emergency conversion of the cargo model to a passenger carrier can be carried out quickly by installing 24 tip-up seats along the cabin sides. Clamshell rear doors are provided for loading large items of cargo or, in the ambulance role, 12 stretchers which can be carried with an accompanying medical attendant.
Like the other Mil turbine helicopters, the Mi-8 can also be used as a rescue machine with a winch on the cabin side capable of lifting a 250kg load, or with an under-fuselage hook for an external sling load of about 2500kg.
--K.Munson "Helicopters And Other Rotorcraft Since 1907", 1968
Designed originally in 1960, the V-8 'Hip-A' prototype helicopter was basically a turbine-powered version of the Mi-4, retaining initially its rotor, transmission and a number of other components. Intended powerplant was two Isotov turboshaft engines, but as these were not fully developed when the V-8 was nearing completion, it was powered instead by a single large Soloviev turboshaft derated to the 2013kW limit of the transmission, for its first flight in June 1960. However, the second machine (flown for the first time on 17 September 1962) introduced the Isotov engines, each then rated at 1119kW, and this became the standard installation on early production aircraft, designated Mil Mi-8 (NATO reporting name 'Hip'). The only other major change to be introduced since that time resulted from problems with the main rotor inherited from the Mi-4, replaced in 1964 by a five-bladed rotor of more advanced design in the 'Hip-B' prototype. The availability of so much engine power, by comparison with the 1268kW of the Mi-4, meant the new helicopter had a larger cabin, providing accommodation for a crew of two or three and up to 28 passengers in a standard airline configuration. Since series construction began, a total of 10,000 Mi-8s have been built, for both civil and military use. Some components are built in China.
Large numbers of Mi-8s are used by Aeroflot in the transport role, being deployed also for ice reconnaissance, rescue operations and logistic support, but even greater numbers are operated by the Soviet Union's Frontal and Naval Aviation and, in addition, these helicopters have been supplied to the armed forces of about 40 other nations. The military versions are identified usually by their NATO reporting names.
Variants
Mi-8: standard production passenger version, accommodating 28 to 32 passengers
Mi-8T: utility civil transport, intended primarily for the carriage of internal or external freight, but able to accommodate 24 passengers on sidewall tip-up seats
Mi-8 Salon: de luxe civil transport with optional nine- and 11-seat interiors
'Hip-C': military assault transport with external stores racks on each side of cabin for 128 rockets or other weapons; some uprated to Mi-17 standard as Mi-8T and Mi-8TB, with port-side tail rotor
'Hip-D': airborne communications version
'Hip-E': heavily-armed attack helicopter, with 12.7mm machine-gun in nose, external racks for up to 192 rockets and four AT-2 'Swatter' anti-tank missiles
'Hip-F': export version generally similar to 'Hip-E' but with six AT-3 'Sagger' ATMs
'Hip-G': communications-relay model
'Hip-H': updated Mi-8 with uprated engines giving improved performance; redesignated Mi-17
'Hip-J’: ECM version
‘Hip-K': ECM jammer version with antenna array on each side of boom; some uprated to Mi-17 standard, with port-side tail rotor.
--D.Donald "The Complete Encyclopedia of World Aircraft", 1997
Development began May 1960, to replace piston-engined Mi-4; first prototype, with single AI-24V turboshaft and four-blade main rotor, flew June 1961, given NATO reporting name 'Hip-A'; second prototype ('Hip-B'), with two production standard TV2-117 engines and five-blade main rotor, flew August 1962; more than 10,000 Mi-8s, Mi-17s and Mi-171s marketed and delivered from Kazan (Mi-8, Mi-17, Mi-172) and Ulan-Ude (Mi-8T, Mi-171) plants for civil and military use, including 2,800 exported; many Mi-8s converted to Mi-17 standard.
VERSIONS
Mi-8APS: Military VIP transport with enhanced communications fit and more luxurious interior; used as Russian Presidential aircraft.
Mi-8AT: Civil transport version produced by Ulan-Ude; TV2-117AG turboshafts; optional 8A-813 weather radar, DISS-32-90 Doppler radar and A-723 long-range radio navigation.
Mi-8ATS: Agricultural helicopter with spray hoppers on each side, and with 'wing'-type spraybars.
Mi-8AV: Dedicated minelayer, despatching mines down steep, ladder-like slide projecting from gap between lower corners of clamshell doors.
Mi-8BT: Equipped for minesweeping, towing sled from winch in cabin. Clamshell doors removed for missions.
Mi-8K: Reconnaissance and artillery fire correction version; large window for camera in rear clamshell doors.
Mi-8MT: Flying crane version with operator's glazed gondola in place of rear clamshell doors. SSSR-254444 may have been the prototype. Designation re-used for Mi-17.
Mi-8P ('Hip-C'): Civil passenger helicopter; standard seating for 28 to 32 persons in main cabin with large square windows.
Detailed description refers to this version, except where indicated.
Mi-8PD (punkt dowodzenia): Polish airborne command post version.
Mi-8PPA ('Hip-K'): Active communications jammer; rectangular container and array of six cruciform dipole antennae each side of cabin; no Doppler box under tailboom; heat exchangers under front fuselage; some uprated to Mi-17 standard, with port-side tail rotor.
Mi-8PS ('Hip-C'): Military VIP transport; basically as civil Mi-8 Salon.
Mi-8R: Reconnaissance version.
Mi-8S (Salon) ('Hip-C'): Original de luxe version of standard Mi-8; normally 11 passengers, on eight-place inward-facing couch on port side, two chairs and swivelling seat on starboard side, with table; square windows; air-to-ground radiotelephone and removable ventilation fans; compartment for attendant, with buffet and crew wardrobe forward of cabin; toilet (port) and passenger wardrobe (starboard) to each side of cabin rear entrance; alternative nine-passenger configuration; maximum T-O weight 10,400kg; range 380km with 30 minutes fuel reserve.
Mi-8SMV ('Hip-J'): ECM version with R-949 jamming system; additional small boxes each side of fuselage, fore and aft of main landing gear legs. Also four containers with 32 droppable short-range jammers. Range 54 n miles (100 km; 62 miles).
Mi-8T ('Hip-C'): Civil utility transport version, with TV2-117A turboshafts and circular cabin windows, built by Ulan-Ude plant. Alternative payloads include internal or external freight; 24 passengers on removable folding seats; 26 passengers on conventional seats; 12 stretcher patients or executive layout similar to Mi-8S.
Mi-8T ('Hip-C'): Also available as standard assault transport of Russian Federation and Associated States (RFAS) army support forces; carrying 24 fully armed troops. Able to dispense 200 anti-personnel or anti-tank mines in flight, by conveyor belt through rear doors.
Mi-8TB ('Hip-E'): Development of 'Hip-C'; KV-4 flexibly mounted 12.7 mm machine gun, with 700 rounds, in nose; triple stores rack each side, to carry total 192 S-5 rockets in six UV-32-57 packs, plus four 9M17P Scorpion (AT-2 'Swatter') anti-tank missiles (semi-automatic command to line of sight) on rails above racks; about 250 in RFAS ground forces; some uprated to Mi-17 standard as Mi-8MTV, with port-side tail rotor.
Mi-8TBK ('Hip-F'): Export 'Hip-E'; missiles changed to six 9M14 Malyutka (NATO AT-3 'Saggers'; manual command to line of sight).
Mi-8TG: Modified TV2-117TG engines permit operation on Liquefied Petroleum Gas (LPG) and Kerosene. LPG contained in large tanks, on each side of cabin, under low pressure. Engines switch to Kerosene for take-off and landing. Reduced harmful exhaust emissions in flight offer anti-pollution benefits. Modification to operate on LPG requires no special equipment and can be effected on in-service Mi-8s at normal maintenance centre. Weights unchanged. Large external tanks, each side of cabin, reduce payload by 100 to 150kg over comparable ranges, with little effect on performance. First flight on LPG made 1987.
Mi-8T(K) : Dedicated photo-reconnaissance platform with AFA-42/100 or AFA-A87P starboard oblique camera in forward part of the cabin, possibly with some onboard processing capability. May be used as fire correction platform.
Mi-8TM : Upgraded civil transport version of Mi-8T; weather radar and rotor head integrity system.
Mi-8TP : Military executive version; upgraded communications include R-832 radio with two-blade antennae under front fuselage and tailboom and R-111 with rod antenna lowered under cabin.
Mi-8TS (tropichesky sukhoi: tropical): Export version for hot and dusty climates.
Mi-8TV (vooruzhonnyi: armed) ('Hip-C'): As Mi-8T, but with added twin-rack each side, to carry total of 64 57 mm S-5 rockets in four UV-16-57 packs, or bombs, for arI disagreeault forces.
Mi-8TZ: Adapted to deliver fuel to front-line areas.
Mi-8 VIP: Current de luxe version by Kazan; three crew and seven to nine passengers; main rotor has vibration damper; hinged airstair door; interior divided into vestibule, passenger cabin crew department, cloakroom and toilet; optional water heater, TV and GPS. Maximum take-off weight 12,000kg.
Mi-8VZPU (vozduzhnyi zapasnoi punkt upravlenya: airborne reserve command post) ('Hip-D'): As 'Hip-C' but rectangular-section canisters on outer stores racks; two large dorsal antennae above forward part of tailboom; no armament.
Mi8AMT, Mi-8MT and Mi-8MTV are versions of the Mi-17, with more powerful turboshafts and port-side tail rotor.
All helicopters of Mi-8/Mi-17 series in Russian military service are known as Mi-8s of various subtypes, regardless of engines fitted.
Mi-9 ('Hip-G'): Airborne command post variant of Mi-8; 'hockey stick' antennae projecting from rear of cabin and from undersurface of tailboom, aft of Doppler radar box; rearward inclined short whip antenna above forward end of tailboom; strakes on fuselage undersurface. Crew of three to six.
Long-range modification: AEFT (Auxilliary External Fuel Tanks) by Aeroton adds another 1,900 litres in two internal tanks, plus same quantity in four external tanks on the stores pylons of the Mi-8T and Mi-8AT. Operational range with all six tanks is 1,100km; ferry range 1,600km.
CUSTOMERS: RFAS ground forces (estimated 2,400 Mi-8/17s); RFAS air forces; at least 40 other air forces; civil operators worldwide.
DESIGN FEATURES: Conventional pod and boom configuration; five-blade main rotor, inclined forward 4° 30' from vertical; interchangeable blades of basic NACA 230 section, solidity 0.0777; spar failure warning system; drag and flapping hinges a few inches apart; blades carried on machined spider; pendulum vibration damper; three-blade starboard tail rotor; transmission comprises VR-8 two-stage planetary main reduction gearbox giving main rotor shaft/engine rpm ratio of 0.016:1, intermediate and tail rotor gearboxes, main rotor brake, and drives off main gearbox for tail rotor, fan, AC generator, hydraulic pumps and tachometer generators; tail rotor pylon forms small vertical stabiliser; horizontal stabiliser near end of tailboom; clamshell rear-loading freight doors.
FLYING CONTROLS: Mechanical system, with irreversible hydraulic boosters; main rotor collective pitch control linked to throttles.
STRUCTURE: All-metal; main rotor blades each have extruded light-alloy spar carrying root fitting, 21 honeycomb-filled trailing-edge pockets and blade tip; balance tab on each blade; each tail rotor blade made of spar and honeycomb-filled trailing-edge; semi-monocoque fuselage.
LANDING GEAR: Non-retractable tricycle type; steerable twin-wheel nose unit, locked in flight; single wheel on each main unit; oleo-pneumatic (gas) shock-absorbers. Mainwheel tyres 865 x 280mm; nosewheel tyres 595 x 185mm. Pneumatic brakes on mainwheels; pneumatic system can also recharge tyres in the field, using air stored in main landing gear struts. Optional mainwheel fairings.
POWER PLANT: Two 1,250kW Klimov TV2-117A turboshafts (1,434 kW TV3-117MTs in Mi-8MT). Main rotor speed governed automatically, with manual override. Single flexible internal fuel tank, capacity 445 litres; two external tanks, each side of cabin, capacity 745 litres in port tank, 680 litres in starboard tank; total standard fuel capacity 1,870 litres. Provision for one or two ferry tanks in cabin, raising maximum total capacity to 3,700 litres. Fairing over starboard external tank houses optional cabin air conditioning equipment at front. Engine cowling side panels form maintenance platforms when open, with access via hatch on flight deck. Total oil capacity 60kg.
ACCOMMODATION: Two pilots side by side on flight deck, with provision for flight engineer's station. Military versions can be fitted with external flight deck armour. Windscreen de-icing standard. Basic passenger version furnished with 24 to 26 four-abreast track-mounted tip-up seats at pitch of 72 to 75cm, with centre aisle 32cm wide; removable bar, wardrobe and baggage compartment. Seats and bulkheads of basic version quickly removable for cargo carrying. Mi-8T and standard military versions have cargo tiedown rings in floor, winch of 150kg capacity and pulley block system to facilitate loading of heavy freight, an external cargo sling system (capacity 3,000kg), and 24 tip-up seats along sidewalls of cabin. All versions can be converted for air ambulance duties, with accommodation for 12 stretchers and tip-up seat for medical attendant. Large windows on each side of flight deck slide rearward. Sliding, jettisonable main passenger door at front of cabin on port side; electrically operated rescue hoist (capacity 150kg) can be installed at this doorway. Rear of cabin made up of clamshell freight-loading doors, which are smaller on commercial versions, with downward-hinged passenger airstair door centrally at rear. Hook-on ramps used for vehicle loading.
SYSTEMS: Standard heating system can be replaced by full air conditioning system; heating of main cabin cut out when carrying refrigerated cargoes. Two independent hydraulic systems, each with own pump; operating pressure 44 to 64 bars. DC electrical supply from two 27V 18kW starter/generators and six 28Ah storage batteries; AC supply for automatically controlled electrothermal de-icing system and some radio equipment supplied by 208/115/36/7.5V 400Hz generator, with 36V three-phase standby system. Engine air intake de-icing standard. Provision for oxygen system for crew and, in ambulance version, for patients. Freon fire extinguishing system in power plant bays and service fuel tank compartments, actuated automatically or manually. Two portable fire extinguishers in cabin.
AVIONICS: Comms: R-842 HF transceiver, frequency range 2 to 8MHz and range up to 1,000km; R-860 VHF transceiver on 118 to 135.9MHz effective up to 100km, intercom, radiotelephone.
Flight: Four-axis autopilot to give yaw, roll and pitch stabilisation under any flight conditions, stabilisation of altitude in level flight or hover, and stabilisation of preset flying speed; Doppler radar box under tailboom.
Instrumentation: For all-weather flying by day and night: two gyro horizons, two airspeed indicators, two main rotor speed indicators, turn indicator, two altimeters, two rate of climb indicators, magnetic compass, astrocompass for Polar flying; ARK-9 automatic radio compass, RV-3 radio altimeter with 'dangerous height' warning.
Self-defence (optional): Infra-red jammer ('Hot Brick') above forward end of tailboom; three ASO-2V flare dispensers above rear cabin window on each side.
ARMAMENT: See individual model descriptions of military versions.
--Jane's Helicopter Markets and Systems
Technical data for Mi-8T
Engine: 2 x TV2-117A turboshaft, rated at 1250kW, main rotor diameter: 21.29m, fuselage length: 18.17m, height: 4.38m, fuselage width: 2.5m, take-off weight: 12000kg, empty weight: 6625kg, max speed: 250km/h, cruising speed: 225km/h, service ceiling: 4500m, range: 425-480km, payload: 4000kg
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Mil Mi-17 "Hip"
1981
www.aviastar.org/helicopters_eng/mi-17.php
The Mi-17 retains the codename 'Hip-H', denoting its derivation from the Mi-8 design. First identified in 1980-81, the Mi-17 is virtually a revision of the Mi-8 design using a combination of the 'Hip' airframe but with the port-side tail rotor, and fitted with the more powerful powerplants of the Mi-14. These result in an overall improvement in performance, particularly the hovering ceiling. The type remains in current production for both civil and military use as a cargo-carrying helicopter, with secondary capability as a passenger transport capable of carrying up to 24 passengers, or 12 stretcher cases when used as an ambulace. The first export examples were delivered to Cuba in 1983, and Mi-17s are now in service in Angola, Hungary, India, North Korea, Nicaragua, Papua New Guinea, Peru and Poland, as well as the CIS.
--D.Donald "The Complete Encyclopedia of World Aircraft", 1997
Prototype, initially known as Mi-18, completed 1975 with basic Mi-8 airframe and power plant and dynamics of Mi-14. Entered service with former Soviet forces in 1977 as Mi-8MT. First displayed at 1981 Paris Air Show; successor to Mi-8 for civil use and export; exports began (to Cuba) 1983. Mi-17M/V and Mi-172 production continues at Kazan and Mi-171 at Ulan-Ude plants, from where they are marketed.
VERSIONS
Mi-17 ('Hip-H'): Mid-life update of Mi-8 with more powerful turboshafts, giving overall performance improvement, particularly hover ceiling. All versions in RFAS military service retain Mi-8 designation. Detailed description refers to basic Mi-17, except where indicated.
Mi-17KF: Latest derivative of Mi-17 jointly developed by Kazan and Mil, with systems integration provided by Kelowna Flightcraft (Canada). First flown 3 August 1997. Certified to FAR Pt 29 for full IFR operation.
Mi-17LL: (laboratoriya: laboratory) Flying testbed.
Mi-17MD: Prototype converted from Mi-8MTV (RA70937); displayed at 1995 Paris Air Show; with rear loading via a short ramp and two clamshell doors; further modified with large single-piece rear loading ramp and other changes. Given dual designation Mi-17MD/Mi-8MTV-5 when equipped with IR jammer and flight deck armour. Also known as Mi-17N (Noch: Night). First delivered to South Korean Police.
Mi-17P (Mi-8 MTPB) ('Hip-K derivative'): ECM communications jammer; two observed in Hungarian service in 1990; antenna array much more advanced than that of Mi-8 ('Hip-K'); large 32-element array, resembling vertically segmented panel, aft of main landing gear each side; four-element array to rear on tailboom each side; large radome each side of cabin, below jet nozzle; triangular container in place of rear cabin window each side; six heat exchangers under front fuselage.
Mi-17PI: As Mi-17P but single D-band jamming system able to jam up to eight sources simultaneously over 30° sector.
Mi-17PG: As Mi-17P but with H/I-band system for jamming pulse/CW and CW interrupted equipment.
Mi-17-1V: Export version of Mi-8MTV ('Hip-H') (Visotnyi: high altitude); TV3-117VM turboshafts for improved 'hot and high' performance, built by Kazan Helicopter Plant; optional armament, nose radar, flotation gear and firefighting equipment. Civil version designated Mi-8MTV-1, military Mi-8MTV-2; civil export version Mi-8MTV-GA (Grazhdanska Aviatsia).
Mi-17-5V: Current Kazan-built production model with port side door enlarged from 0.83m to 1.25m; new 0.83m wide starboard sliding door; rear flat ramp with single hydraulic cylinder drive installed on helicopter floor and capable of being lowered to horizontal position in flight, permitting disembarkment of up to 36 troops in 15 seconds. Series production started in 1999. Military equivalent designated Mi-8MTV-5.
Mi-171 ('Hip-H'): First displayed 1989 Paris Air Show; more powerful TV3-117VM turboshafts, each 1,545kW; improved rates of climb and hover ceilings; other weights and performance generally unchanged. Export version of Mi-8AMT.
Mi-171AG: Proposed long-range version with TV3-117SB3 turboshaft engines and improved main rotor blades; range up to 1,500km.
Mi-171Sh: Export version of Mi-8AMT built at Ulan-Ude.
Mi-17-1VA: Version produced for Ministry of Health of former Soviet Union as flying hospital equipped to highest practicable standards for relatively small helicopter; interior, with equipment developed in Hungary, had provision for three stretchers, operating table, extensive surgical and medical equipment, accommodation for doctor/surgeon and three nursing attendants.
Mi-172 (Mi-8MTV-3): As Mi-17M/17V, also from Kazan, but with equipment changes and planned for certification to FAR Pt 29 standards; TV3-117VM Srs 2 engines, giving maximum cruising speed of 218km/h and service ceiling of 6,000m; air conditioning and heating systems, main and tail rotor blade de-icing, canopy demisting and heating of engine air intakes standard; options include flotation gear, Doppler, weather radar, DME, GPS, VOR, ILS, transponder and VIP interiors for seven, nine and 11 passengers. Standard seating for up to 26 passengers. First exhibited at 1994 Singapore Air Show. Seven ordered by Mesco, India, Spring 1995.
Mi-17Z-II: Converted from 'Hip-H' in former Czechoslovakia for electronic warfare role; first seen in Czech Air Force service at Dobrany-Line airbase, near Plzen, 1991; each of two examples had a tandem pair of large cylindrical containers mounted each side of cabin; assumed that containers made of dielectric material and contain receivers to locate and analyse hostile electronic emissions; each of two operators' stations in main cabin has large screens, computer-type keyboards and oscilloscope; several blade antennae project from tailboom.
Mi-19: Generally similar to Mi-9; command relay platform variant of Mi-8MT (Mi-17).
Mi-8AMTSh: Counterpart of Mi-8MTV series built at Ulan-Ude; combat and troop-carrying version with thimble radome on nose and chin-mounted electro-optics pod. Armament includes Igla-V AAM or Shturm-V ASM missile systems, B8V20 rocket pods and GSh-23 gun.
Mi-8AMT: Designation for unarmed version of Mi-8MT used by RFAS, but also applied to some civil (perhaps ex-military) examples.
Mi-8MT ('Hip-H'): Designation of standard Mi-17s in RFAS military service. Twin or triple stores racks, but normal armament is 40 x 80mm S-8 rockets in two BV-8-20A packs. Afghan experience led to adoption of nose armour, IR jammer, IR suppressors and provision for door-mounted PKT machine gun (rear starboard) and AGS-17 Plamya grenade launcher or NSV 12.7mm Utyos heavy machine gun (forward port cabin door).
Mi-8MT EW variants: More than 30 EW versions of the Mi-8MT serve with RFAS armed forces, under the designations Mi-8MTSh, Mi-8MTPSh, Mi-8MTU, Mi-8MTA, Mi-8MTP, Mi-8MTPB, Mi-8MTR, Mi-8MTI, Mi-8MTPI and Mi-8MTTs.
Mi-8MTPB (or Mi-17P, Mi-17PP) ('Hip-H EW'): ECM (radar and communications jammer) and comint helicopter, with three jamming systems in D/F band range over 30° sector and other frequencies over 120°. Operating time 4 hours. Antenna array more advanced than that of Mi-8PPA ('Hip-K'); large 32-element array, resembling vertically segmented panel, aft of main landing gear each side; four-element array to rear on tailboom each side; large radome each side of cabin, below jet nozzle; triangular container in place of rear cabin window each side; six heat exchangers under front fuselage. (Mi-17P designation used also for civil export versions.) Similar versions include Mi-8MTI (Mi-17 with small horizontal array on forward part of boom and larger box-like radome on cabin side); Mi-8MTTs2 and Mi-8MTTs3 with non-rectangular ('teardrop') radome on cabin sides and less regularly shaped arrays on sides of rear cabin.
Mi-8MTV ('Hip-H'): (V=visotnyi: high altitude); TV3-117VM turboshaft for improved 'hot and high' operation. Civil version built at Kazan is Mi-8MTV-1; Russian presidential aircraft with new Abvis navigation system is designated Mi-8MTV-1S; missile-armed, radar-equipped military version with six-hardpoint stub-wing is Mi-8MTV-2; export equivalent is Mi-17-1V, with optional armament, nose radar, flotation gear and firefighting equipment. Mi-8MTV-5 is military version with one-piece rear loading ramp: Ulan-Ude equivalent to Kazan Mi-17MD.
Long-range modification: AEFT (Auxiliary External Fuel Tanks) system by Aeroton adds a further 1,900 litres in two internal tanks, plus 2,850 litres in six tanks on the stores pylons of Mi-8MT, -AMT, -MTV-1, civil MTV and Mi-17 variants. Operational range with all eight auxiliary tanks is 1,300km; ferry range 1,850km.
CUSTOMERS: More than 810 exported by Aviaexport.
DESIGN FEATURES: Distinguished from basic Mi-8 by port-side tail rotor; shorter engine nacelles, with air intakes extending forward only to mid-point of door on port side at front of cabin; small orifice each side forward of jetpipe; correct rotor speed maintained automatically by system that also synchronises output of the two engines. For operation in 'hot and high' conditions, Kazan commercial versions can be supplied with TV3-117MT engines and tail rotor with wider-chord blades.
POWER PLANT: (basic Mi-17): Two 1,434kW (1,923 shp) Klimov TV3-117MT turboshafts; should one engine stop, output of the other increases automatically to contingency rating of 1,637kW (2,195 shp), enabling flight to continue; APU for pneumatic engine starting; deflectors on engine air intakes prevent ingestion of sand, dust and foreign objects. Fuel as Mi-8T.
ACCOMMODATION: Configuration and payloads generally as Mi-8 but six additional centreline seats optional. Military Mi-17-1V carries up to 30 troops or 20 wounded troops in ambulance configuration. Civilian Mi-17 promoted as essentially a cargo-carrying helicopter, with secondary passenger transport role.
SYSTEMS: (Mi-17V/171): AI-9V APU for pneumatic engine starting; AC electrical supply from two 40kW three-phase 115/220V 400Hz GT40/P-48V generators.
AVIONICS: (Mi-17V/171): Comms: Baklan-20 and Yadro-1G1 com radio. Radar: Type 8A-813 weather radar.
Flight: Type A-723 long-range nav.
Instrumentation: ARK-15M radio compass, ARK-UD radio compass, DISS-32-90 Doppler; AGK-77 and AGR-74V automatic horizons; BKK-18 attitude monitor; ZPU-24 course selector; A-037 radio altimeter.
Self-defence (optional): ASO-2 chaff/flare dispenser under tailboom and IR jammer (NATO 'Hot Brick') at forward end of tailboom.
EQUIPMENT: Options as for Mi-8, plus, on military versions, external cockpit armour; engine nozzle IR suppressors and a VMR-2 fit for air-dropping.
ARMAMENT: Options as for Mi-8, plus 23mm GSh-23 gun packs. AAMs and newer ASMs on Mi-8AMTSh.
--Jane's Helicopter Markets and Systems
Technical data for Mi-17
Engine: 2 x Klimov TV3-117MT turboshaft, rated at 1400kW, main rotor diameter: 21.29m, length: 25.35m, height: 4.76m, take-off weight: 13000kg, max speed: 250km/h, cruising speed: 240km/h, service ceiling: 5000m, hovering ceiling, OGE: 1760m, range: 465km, payload: 3000-5000kg
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Mil Mi-18
1979
www.aviastar.org/helicopters_eng/mi-18.php
Mi-17 with 0.9m fuselage extension, retractable undercarriage and modified cabin doors. Prototype only.
Technical data for Mi-18
Crew: 3, passengers: 30, engine: 2 x TV3-117MT turboshaft, rated at 1425kW, main rotor diameter: 21.3m, take-off weight: 11500-13000kg, empty weight: 7550kg, max speed: 270km/h, cruising speed: 240km/h, hovering ceiling, IGE: 3200m, service ceiling: 5550m, range: 580km, payload: 3000-5000kg
1961
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www.aviastar.org/helicopters_eng/mi_v8.php
Mi-8 prototype incorporating Mi-4 main rotor and transmission and one 2700shp Soloviev AI-24V turbine mounted on top of fuselage. First flown on 24 June 1961. Subsequently fitted with 5-blade rotor and two 1400shp Isotov TV2-117 engines.
Technical data for V-8
Crew: 3, passengers: 18, engine: 1 x AI-24V turboshaft, rated at 1425kW, main rotor diameter: 21.0m, take-off weight: 11200kg, empty weight: 5726kg, payload: 1500-2000kg
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Mil Mi-8 "Hip"
1964
www.aviastar.org/helicopters_eng/mi-8.php
The third of Mikhail Mil's current quartet of turbine-powered helicopters, the Mi-8, appeared in prototype form towards the end of 1961. In broad terms it bears the same relationship to the Mi-4 as the Mi-2 has to the Mi-1, and (initially at least) the rotor hub, rotor blades, rear fuselage boom and certain undercarriage components were similar to those employed in the Mi-4. The original prototype was powered by a single 2700shp Soloviev shaft turbine mounted over the cabin roof, but in the second machine, which flew for the first time on 17 September 1962, this was replaced by two of the smaller Isotov engines of 1500shp each. The latter has been the standard installation on all subsequent aircraft, the only major design change being the substitution of a 5-blade rotor for the original 4-blade one in 1964.
Intended primarily for Aeroflot, the Mi-8 carries a 2- or 3-man crew and has seating accommodation for up to 28 passengers in its standard airline form. Alternative internal arrangements include a de luxe saloon cabin for executive travel or a cargo layout for an internal payload of 4000kg. Emergency conversion of the cargo model to a passenger carrier can be carried out quickly by installing 24 tip-up seats along the cabin sides. Clamshell rear doors are provided for loading large items of cargo or, in the ambulance role, 12 stretchers which can be carried with an accompanying medical attendant.
Like the other Mil turbine helicopters, the Mi-8 can also be used as a rescue machine with a winch on the cabin side capable of lifting a 250kg load, or with an under-fuselage hook for an external sling load of about 2500kg.
--K.Munson "Helicopters And Other Rotorcraft Since 1907", 1968
Designed originally in 1960, the V-8 'Hip-A' prototype helicopter was basically a turbine-powered version of the Mi-4, retaining initially its rotor, transmission and a number of other components. Intended powerplant was two Isotov turboshaft engines, but as these were not fully developed when the V-8 was nearing completion, it was powered instead by a single large Soloviev turboshaft derated to the 2013kW limit of the transmission, for its first flight in June 1960. However, the second machine (flown for the first time on 17 September 1962) introduced the Isotov engines, each then rated at 1119kW, and this became the standard installation on early production aircraft, designated Mil Mi-8 (NATO reporting name 'Hip'). The only other major change to be introduced since that time resulted from problems with the main rotor inherited from the Mi-4, replaced in 1964 by a five-bladed rotor of more advanced design in the 'Hip-B' prototype. The availability of so much engine power, by comparison with the 1268kW of the Mi-4, meant the new helicopter had a larger cabin, providing accommodation for a crew of two or three and up to 28 passengers in a standard airline configuration. Since series construction began, a total of 10,000 Mi-8s have been built, for both civil and military use. Some components are built in China.
Large numbers of Mi-8s are used by Aeroflot in the transport role, being deployed also for ice reconnaissance, rescue operations and logistic support, but even greater numbers are operated by the Soviet Union's Frontal and Naval Aviation and, in addition, these helicopters have been supplied to the armed forces of about 40 other nations. The military versions are identified usually by their NATO reporting names.
Variants
Mi-8: standard production passenger version, accommodating 28 to 32 passengers
Mi-8T: utility civil transport, intended primarily for the carriage of internal or external freight, but able to accommodate 24 passengers on sidewall tip-up seats
Mi-8 Salon: de luxe civil transport with optional nine- and 11-seat interiors
'Hip-C': military assault transport with external stores racks on each side of cabin for 128 rockets or other weapons; some uprated to Mi-17 standard as Mi-8T and Mi-8TB, with port-side tail rotor
'Hip-D': airborne communications version
'Hip-E': heavily-armed attack helicopter, with 12.7mm machine-gun in nose, external racks for up to 192 rockets and four AT-2 'Swatter' anti-tank missiles
'Hip-F': export version generally similar to 'Hip-E' but with six AT-3 'Sagger' ATMs
'Hip-G': communications-relay model
'Hip-H': updated Mi-8 with uprated engines giving improved performance; redesignated Mi-17
'Hip-J’: ECM version
‘Hip-K': ECM jammer version with antenna array on each side of boom; some uprated to Mi-17 standard, with port-side tail rotor.
--D.Donald "The Complete Encyclopedia of World Aircraft", 1997
Development began May 1960, to replace piston-engined Mi-4; first prototype, with single AI-24V turboshaft and four-blade main rotor, flew June 1961, given NATO reporting name 'Hip-A'; second prototype ('Hip-B'), with two production standard TV2-117 engines and five-blade main rotor, flew August 1962; more than 10,000 Mi-8s, Mi-17s and Mi-171s marketed and delivered from Kazan (Mi-8, Mi-17, Mi-172) and Ulan-Ude (Mi-8T, Mi-171) plants for civil and military use, including 2,800 exported; many Mi-8s converted to Mi-17 standard.
VERSIONS
Mi-8APS: Military VIP transport with enhanced communications fit and more luxurious interior; used as Russian Presidential aircraft.
Mi-8AT: Civil transport version produced by Ulan-Ude; TV2-117AG turboshafts; optional 8A-813 weather radar, DISS-32-90 Doppler radar and A-723 long-range radio navigation.
Mi-8ATS: Agricultural helicopter with spray hoppers on each side, and with 'wing'-type spraybars.
Mi-8AV: Dedicated minelayer, despatching mines down steep, ladder-like slide projecting from gap between lower corners of clamshell doors.
Mi-8BT: Equipped for minesweeping, towing sled from winch in cabin. Clamshell doors removed for missions.
Mi-8K: Reconnaissance and artillery fire correction version; large window for camera in rear clamshell doors.
Mi-8MT: Flying crane version with operator's glazed gondola in place of rear clamshell doors. SSSR-254444 may have been the prototype. Designation re-used for Mi-17.
Mi-8P ('Hip-C'): Civil passenger helicopter; standard seating for 28 to 32 persons in main cabin with large square windows.
Detailed description refers to this version, except where indicated.
Mi-8PD (punkt dowodzenia): Polish airborne command post version.
Mi-8PPA ('Hip-K'): Active communications jammer; rectangular container and array of six cruciform dipole antennae each side of cabin; no Doppler box under tailboom; heat exchangers under front fuselage; some uprated to Mi-17 standard, with port-side tail rotor.
Mi-8PS ('Hip-C'): Military VIP transport; basically as civil Mi-8 Salon.
Mi-8R: Reconnaissance version.
Mi-8S (Salon) ('Hip-C'): Original de luxe version of standard Mi-8; normally 11 passengers, on eight-place inward-facing couch on port side, two chairs and swivelling seat on starboard side, with table; square windows; air-to-ground radiotelephone and removable ventilation fans; compartment for attendant, with buffet and crew wardrobe forward of cabin; toilet (port) and passenger wardrobe (starboard) to each side of cabin rear entrance; alternative nine-passenger configuration; maximum T-O weight 10,400kg; range 380km with 30 minutes fuel reserve.
Mi-8SMV ('Hip-J'): ECM version with R-949 jamming system; additional small boxes each side of fuselage, fore and aft of main landing gear legs. Also four containers with 32 droppable short-range jammers. Range 54 n miles (100 km; 62 miles).
Mi-8T ('Hip-C'): Civil utility transport version, with TV2-117A turboshafts and circular cabin windows, built by Ulan-Ude plant. Alternative payloads include internal or external freight; 24 passengers on removable folding seats; 26 passengers on conventional seats; 12 stretcher patients or executive layout similar to Mi-8S.
Mi-8T ('Hip-C'): Also available as standard assault transport of Russian Federation and Associated States (RFAS) army support forces; carrying 24 fully armed troops. Able to dispense 200 anti-personnel or anti-tank mines in flight, by conveyor belt through rear doors.
Mi-8TB ('Hip-E'): Development of 'Hip-C'; KV-4 flexibly mounted 12.7 mm machine gun, with 700 rounds, in nose; triple stores rack each side, to carry total 192 S-5 rockets in six UV-32-57 packs, plus four 9M17P Scorpion (AT-2 'Swatter') anti-tank missiles (semi-automatic command to line of sight) on rails above racks; about 250 in RFAS ground forces; some uprated to Mi-17 standard as Mi-8MTV, with port-side tail rotor.
Mi-8TBK ('Hip-F'): Export 'Hip-E'; missiles changed to six 9M14 Malyutka (NATO AT-3 'Saggers'; manual command to line of sight).
Mi-8TG: Modified TV2-117TG engines permit operation on Liquefied Petroleum Gas (LPG) and Kerosene. LPG contained in large tanks, on each side of cabin, under low pressure. Engines switch to Kerosene for take-off and landing. Reduced harmful exhaust emissions in flight offer anti-pollution benefits. Modification to operate on LPG requires no special equipment and can be effected on in-service Mi-8s at normal maintenance centre. Weights unchanged. Large external tanks, each side of cabin, reduce payload by 100 to 150kg over comparable ranges, with little effect on performance. First flight on LPG made 1987.
Mi-8T(K) : Dedicated photo-reconnaissance platform with AFA-42/100 or AFA-A87P starboard oblique camera in forward part of the cabin, possibly with some onboard processing capability. May be used as fire correction platform.
Mi-8TM : Upgraded civil transport version of Mi-8T; weather radar and rotor head integrity system.
Mi-8TP : Military executive version; upgraded communications include R-832 radio with two-blade antennae under front fuselage and tailboom and R-111 with rod antenna lowered under cabin.
Mi-8TS (tropichesky sukhoi: tropical): Export version for hot and dusty climates.
Mi-8TV (vooruzhonnyi: armed) ('Hip-C'): As Mi-8T, but with added twin-rack each side, to carry total of 64 57 mm S-5 rockets in four UV-16-57 packs, or bombs, for arI disagreeault forces.
Mi-8TZ: Adapted to deliver fuel to front-line areas.
Mi-8 VIP: Current de luxe version by Kazan; three crew and seven to nine passengers; main rotor has vibration damper; hinged airstair door; interior divided into vestibule, passenger cabin crew department, cloakroom and toilet; optional water heater, TV and GPS. Maximum take-off weight 12,000kg.
Mi-8VZPU (vozduzhnyi zapasnoi punkt upravlenya: airborne reserve command post) ('Hip-D'): As 'Hip-C' but rectangular-section canisters on outer stores racks; two large dorsal antennae above forward part of tailboom; no armament.
Mi8AMT, Mi-8MT and Mi-8MTV are versions of the Mi-17, with more powerful turboshafts and port-side tail rotor.
All helicopters of Mi-8/Mi-17 series in Russian military service are known as Mi-8s of various subtypes, regardless of engines fitted.
Mi-9 ('Hip-G'): Airborne command post variant of Mi-8; 'hockey stick' antennae projecting from rear of cabin and from undersurface of tailboom, aft of Doppler radar box; rearward inclined short whip antenna above forward end of tailboom; strakes on fuselage undersurface. Crew of three to six.
Long-range modification: AEFT (Auxilliary External Fuel Tanks) by Aeroton adds another 1,900 litres in two internal tanks, plus same quantity in four external tanks on the stores pylons of the Mi-8T and Mi-8AT. Operational range with all six tanks is 1,100km; ferry range 1,600km.
CUSTOMERS: RFAS ground forces (estimated 2,400 Mi-8/17s); RFAS air forces; at least 40 other air forces; civil operators worldwide.
DESIGN FEATURES: Conventional pod and boom configuration; five-blade main rotor, inclined forward 4° 30' from vertical; interchangeable blades of basic NACA 230 section, solidity 0.0777; spar failure warning system; drag and flapping hinges a few inches apart; blades carried on machined spider; pendulum vibration damper; three-blade starboard tail rotor; transmission comprises VR-8 two-stage planetary main reduction gearbox giving main rotor shaft/engine rpm ratio of 0.016:1, intermediate and tail rotor gearboxes, main rotor brake, and drives off main gearbox for tail rotor, fan, AC generator, hydraulic pumps and tachometer generators; tail rotor pylon forms small vertical stabiliser; horizontal stabiliser near end of tailboom; clamshell rear-loading freight doors.
FLYING CONTROLS: Mechanical system, with irreversible hydraulic boosters; main rotor collective pitch control linked to throttles.
STRUCTURE: All-metal; main rotor blades each have extruded light-alloy spar carrying root fitting, 21 honeycomb-filled trailing-edge pockets and blade tip; balance tab on each blade; each tail rotor blade made of spar and honeycomb-filled trailing-edge; semi-monocoque fuselage.
LANDING GEAR: Non-retractable tricycle type; steerable twin-wheel nose unit, locked in flight; single wheel on each main unit; oleo-pneumatic (gas) shock-absorbers. Mainwheel tyres 865 x 280mm; nosewheel tyres 595 x 185mm. Pneumatic brakes on mainwheels; pneumatic system can also recharge tyres in the field, using air stored in main landing gear struts. Optional mainwheel fairings.
POWER PLANT: Two 1,250kW Klimov TV2-117A turboshafts (1,434 kW TV3-117MTs in Mi-8MT). Main rotor speed governed automatically, with manual override. Single flexible internal fuel tank, capacity 445 litres; two external tanks, each side of cabin, capacity 745 litres in port tank, 680 litres in starboard tank; total standard fuel capacity 1,870 litres. Provision for one or two ferry tanks in cabin, raising maximum total capacity to 3,700 litres. Fairing over starboard external tank houses optional cabin air conditioning equipment at front. Engine cowling side panels form maintenance platforms when open, with access via hatch on flight deck. Total oil capacity 60kg.
ACCOMMODATION: Two pilots side by side on flight deck, with provision for flight engineer's station. Military versions can be fitted with external flight deck armour. Windscreen de-icing standard. Basic passenger version furnished with 24 to 26 four-abreast track-mounted tip-up seats at pitch of 72 to 75cm, with centre aisle 32cm wide; removable bar, wardrobe and baggage compartment. Seats and bulkheads of basic version quickly removable for cargo carrying. Mi-8T and standard military versions have cargo tiedown rings in floor, winch of 150kg capacity and pulley block system to facilitate loading of heavy freight, an external cargo sling system (capacity 3,000kg), and 24 tip-up seats along sidewalls of cabin. All versions can be converted for air ambulance duties, with accommodation for 12 stretchers and tip-up seat for medical attendant. Large windows on each side of flight deck slide rearward. Sliding, jettisonable main passenger door at front of cabin on port side; electrically operated rescue hoist (capacity 150kg) can be installed at this doorway. Rear of cabin made up of clamshell freight-loading doors, which are smaller on commercial versions, with downward-hinged passenger airstair door centrally at rear. Hook-on ramps used for vehicle loading.
SYSTEMS: Standard heating system can be replaced by full air conditioning system; heating of main cabin cut out when carrying refrigerated cargoes. Two independent hydraulic systems, each with own pump; operating pressure 44 to 64 bars. DC electrical supply from two 27V 18kW starter/generators and six 28Ah storage batteries; AC supply for automatically controlled electrothermal de-icing system and some radio equipment supplied by 208/115/36/7.5V 400Hz generator, with 36V three-phase standby system. Engine air intake de-icing standard. Provision for oxygen system for crew and, in ambulance version, for patients. Freon fire extinguishing system in power plant bays and service fuel tank compartments, actuated automatically or manually. Two portable fire extinguishers in cabin.
AVIONICS: Comms: R-842 HF transceiver, frequency range 2 to 8MHz and range up to 1,000km; R-860 VHF transceiver on 118 to 135.9MHz effective up to 100km, intercom, radiotelephone.
Flight: Four-axis autopilot to give yaw, roll and pitch stabilisation under any flight conditions, stabilisation of altitude in level flight or hover, and stabilisation of preset flying speed; Doppler radar box under tailboom.
Instrumentation: For all-weather flying by day and night: two gyro horizons, two airspeed indicators, two main rotor speed indicators, turn indicator, two altimeters, two rate of climb indicators, magnetic compass, astrocompass for Polar flying; ARK-9 automatic radio compass, RV-3 radio altimeter with 'dangerous height' warning.
Self-defence (optional): Infra-red jammer ('Hot Brick') above forward end of tailboom; three ASO-2V flare dispensers above rear cabin window on each side.
ARMAMENT: See individual model descriptions of military versions.
--Jane's Helicopter Markets and Systems
Technical data for Mi-8T
Engine: 2 x TV2-117A turboshaft, rated at 1250kW, main rotor diameter: 21.29m, fuselage length: 18.17m, height: 4.38m, fuselage width: 2.5m, take-off weight: 12000kg, empty weight: 6625kg, max speed: 250km/h, cruising speed: 225km/h, service ceiling: 4500m, range: 425-480km, payload: 4000kg
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Mil Mi-17 "Hip"
1981
www.aviastar.org/helicopters_eng/mi-17.php
The Mi-17 retains the codename 'Hip-H', denoting its derivation from the Mi-8 design. First identified in 1980-81, the Mi-17 is virtually a revision of the Mi-8 design using a combination of the 'Hip' airframe but with the port-side tail rotor, and fitted with the more powerful powerplants of the Mi-14. These result in an overall improvement in performance, particularly the hovering ceiling. The type remains in current production for both civil and military use as a cargo-carrying helicopter, with secondary capability as a passenger transport capable of carrying up to 24 passengers, or 12 stretcher cases when used as an ambulace. The first export examples were delivered to Cuba in 1983, and Mi-17s are now in service in Angola, Hungary, India, North Korea, Nicaragua, Papua New Guinea, Peru and Poland, as well as the CIS.
--D.Donald "The Complete Encyclopedia of World Aircraft", 1997
Prototype, initially known as Mi-18, completed 1975 with basic Mi-8 airframe and power plant and dynamics of Mi-14. Entered service with former Soviet forces in 1977 as Mi-8MT. First displayed at 1981 Paris Air Show; successor to Mi-8 for civil use and export; exports began (to Cuba) 1983. Mi-17M/V and Mi-172 production continues at Kazan and Mi-171 at Ulan-Ude plants, from where they are marketed.
VERSIONS
Mi-17 ('Hip-H'): Mid-life update of Mi-8 with more powerful turboshafts, giving overall performance improvement, particularly hover ceiling. All versions in RFAS military service retain Mi-8 designation. Detailed description refers to basic Mi-17, except where indicated.
Mi-17KF: Latest derivative of Mi-17 jointly developed by Kazan and Mil, with systems integration provided by Kelowna Flightcraft (Canada). First flown 3 August 1997. Certified to FAR Pt 29 for full IFR operation.
Mi-17LL: (laboratoriya: laboratory) Flying testbed.
Mi-17MD: Prototype converted from Mi-8MTV (RA70937); displayed at 1995 Paris Air Show; with rear loading via a short ramp and two clamshell doors; further modified with large single-piece rear loading ramp and other changes. Given dual designation Mi-17MD/Mi-8MTV-5 when equipped with IR jammer and flight deck armour. Also known as Mi-17N (Noch: Night). First delivered to South Korean Police.
Mi-17P (Mi-8 MTPB) ('Hip-K derivative'): ECM communications jammer; two observed in Hungarian service in 1990; antenna array much more advanced than that of Mi-8 ('Hip-K'); large 32-element array, resembling vertically segmented panel, aft of main landing gear each side; four-element array to rear on tailboom each side; large radome each side of cabin, below jet nozzle; triangular container in place of rear cabin window each side; six heat exchangers under front fuselage.
Mi-17PI: As Mi-17P but single D-band jamming system able to jam up to eight sources simultaneously over 30° sector.
Mi-17PG: As Mi-17P but with H/I-band system for jamming pulse/CW and CW interrupted equipment.
Mi-17-1V: Export version of Mi-8MTV ('Hip-H') (Visotnyi: high altitude); TV3-117VM turboshafts for improved 'hot and high' performance, built by Kazan Helicopter Plant; optional armament, nose radar, flotation gear and firefighting equipment. Civil version designated Mi-8MTV-1, military Mi-8MTV-2; civil export version Mi-8MTV-GA (Grazhdanska Aviatsia).
Mi-17-5V: Current Kazan-built production model with port side door enlarged from 0.83m to 1.25m; new 0.83m wide starboard sliding door; rear flat ramp with single hydraulic cylinder drive installed on helicopter floor and capable of being lowered to horizontal position in flight, permitting disembarkment of up to 36 troops in 15 seconds. Series production started in 1999. Military equivalent designated Mi-8MTV-5.
Mi-171 ('Hip-H'): First displayed 1989 Paris Air Show; more powerful TV3-117VM turboshafts, each 1,545kW; improved rates of climb and hover ceilings; other weights and performance generally unchanged. Export version of Mi-8AMT.
Mi-171AG: Proposed long-range version with TV3-117SB3 turboshaft engines and improved main rotor blades; range up to 1,500km.
Mi-171Sh: Export version of Mi-8AMT built at Ulan-Ude.
Mi-17-1VA: Version produced for Ministry of Health of former Soviet Union as flying hospital equipped to highest practicable standards for relatively small helicopter; interior, with equipment developed in Hungary, had provision for three stretchers, operating table, extensive surgical and medical equipment, accommodation for doctor/surgeon and three nursing attendants.
Mi-172 (Mi-8MTV-3): As Mi-17M/17V, also from Kazan, but with equipment changes and planned for certification to FAR Pt 29 standards; TV3-117VM Srs 2 engines, giving maximum cruising speed of 218km/h and service ceiling of 6,000m; air conditioning and heating systems, main and tail rotor blade de-icing, canopy demisting and heating of engine air intakes standard; options include flotation gear, Doppler, weather radar, DME, GPS, VOR, ILS, transponder and VIP interiors for seven, nine and 11 passengers. Standard seating for up to 26 passengers. First exhibited at 1994 Singapore Air Show. Seven ordered by Mesco, India, Spring 1995.
Mi-17Z-II: Converted from 'Hip-H' in former Czechoslovakia for electronic warfare role; first seen in Czech Air Force service at Dobrany-Line airbase, near Plzen, 1991; each of two examples had a tandem pair of large cylindrical containers mounted each side of cabin; assumed that containers made of dielectric material and contain receivers to locate and analyse hostile electronic emissions; each of two operators' stations in main cabin has large screens, computer-type keyboards and oscilloscope; several blade antennae project from tailboom.
Mi-19: Generally similar to Mi-9; command relay platform variant of Mi-8MT (Mi-17).
Mi-8AMTSh: Counterpart of Mi-8MTV series built at Ulan-Ude; combat and troop-carrying version with thimble radome on nose and chin-mounted electro-optics pod. Armament includes Igla-V AAM or Shturm-V ASM missile systems, B8V20 rocket pods and GSh-23 gun.
Mi-8AMT: Designation for unarmed version of Mi-8MT used by RFAS, but also applied to some civil (perhaps ex-military) examples.
Mi-8MT ('Hip-H'): Designation of standard Mi-17s in RFAS military service. Twin or triple stores racks, but normal armament is 40 x 80mm S-8 rockets in two BV-8-20A packs. Afghan experience led to adoption of nose armour, IR jammer, IR suppressors and provision for door-mounted PKT machine gun (rear starboard) and AGS-17 Plamya grenade launcher or NSV 12.7mm Utyos heavy machine gun (forward port cabin door).
Mi-8MT EW variants: More than 30 EW versions of the Mi-8MT serve with RFAS armed forces, under the designations Mi-8MTSh, Mi-8MTPSh, Mi-8MTU, Mi-8MTA, Mi-8MTP, Mi-8MTPB, Mi-8MTR, Mi-8MTI, Mi-8MTPI and Mi-8MTTs.
Mi-8MTPB (or Mi-17P, Mi-17PP) ('Hip-H EW'): ECM (radar and communications jammer) and comint helicopter, with three jamming systems in D/F band range over 30° sector and other frequencies over 120°. Operating time 4 hours. Antenna array more advanced than that of Mi-8PPA ('Hip-K'); large 32-element array, resembling vertically segmented panel, aft of main landing gear each side; four-element array to rear on tailboom each side; large radome each side of cabin, below jet nozzle; triangular container in place of rear cabin window each side; six heat exchangers under front fuselage. (Mi-17P designation used also for civil export versions.) Similar versions include Mi-8MTI (Mi-17 with small horizontal array on forward part of boom and larger box-like radome on cabin side); Mi-8MTTs2 and Mi-8MTTs3 with non-rectangular ('teardrop') radome on cabin sides and less regularly shaped arrays on sides of rear cabin.
Mi-8MTV ('Hip-H'): (V=visotnyi: high altitude); TV3-117VM turboshaft for improved 'hot and high' operation. Civil version built at Kazan is Mi-8MTV-1; Russian presidential aircraft with new Abvis navigation system is designated Mi-8MTV-1S; missile-armed, radar-equipped military version with six-hardpoint stub-wing is Mi-8MTV-2; export equivalent is Mi-17-1V, with optional armament, nose radar, flotation gear and firefighting equipment. Mi-8MTV-5 is military version with one-piece rear loading ramp: Ulan-Ude equivalent to Kazan Mi-17MD.
Long-range modification: AEFT (Auxiliary External Fuel Tanks) system by Aeroton adds a further 1,900 litres in two internal tanks, plus 2,850 litres in six tanks on the stores pylons of Mi-8MT, -AMT, -MTV-1, civil MTV and Mi-17 variants. Operational range with all eight auxiliary tanks is 1,300km; ferry range 1,850km.
CUSTOMERS: More than 810 exported by Aviaexport.
DESIGN FEATURES: Distinguished from basic Mi-8 by port-side tail rotor; shorter engine nacelles, with air intakes extending forward only to mid-point of door on port side at front of cabin; small orifice each side forward of jetpipe; correct rotor speed maintained automatically by system that also synchronises output of the two engines. For operation in 'hot and high' conditions, Kazan commercial versions can be supplied with TV3-117MT engines and tail rotor with wider-chord blades.
POWER PLANT: (basic Mi-17): Two 1,434kW (1,923 shp) Klimov TV3-117MT turboshafts; should one engine stop, output of the other increases automatically to contingency rating of 1,637kW (2,195 shp), enabling flight to continue; APU for pneumatic engine starting; deflectors on engine air intakes prevent ingestion of sand, dust and foreign objects. Fuel as Mi-8T.
ACCOMMODATION: Configuration and payloads generally as Mi-8 but six additional centreline seats optional. Military Mi-17-1V carries up to 30 troops or 20 wounded troops in ambulance configuration. Civilian Mi-17 promoted as essentially a cargo-carrying helicopter, with secondary passenger transport role.
SYSTEMS: (Mi-17V/171): AI-9V APU for pneumatic engine starting; AC electrical supply from two 40kW three-phase 115/220V 400Hz GT40/P-48V generators.
AVIONICS: (Mi-17V/171): Comms: Baklan-20 and Yadro-1G1 com radio. Radar: Type 8A-813 weather radar.
Flight: Type A-723 long-range nav.
Instrumentation: ARK-15M radio compass, ARK-UD radio compass, DISS-32-90 Doppler; AGK-77 and AGR-74V automatic horizons; BKK-18 attitude monitor; ZPU-24 course selector; A-037 radio altimeter.
Self-defence (optional): ASO-2 chaff/flare dispenser under tailboom and IR jammer (NATO 'Hot Brick') at forward end of tailboom.
EQUIPMENT: Options as for Mi-8, plus, on military versions, external cockpit armour; engine nozzle IR suppressors and a VMR-2 fit for air-dropping.
ARMAMENT: Options as for Mi-8, plus 23mm GSh-23 gun packs. AAMs and newer ASMs on Mi-8AMTSh.
--Jane's Helicopter Markets and Systems
Technical data for Mi-17
Engine: 2 x Klimov TV3-117MT turboshaft, rated at 1400kW, main rotor diameter: 21.29m, length: 25.35m, height: 4.76m, take-off weight: 13000kg, max speed: 250km/h, cruising speed: 240km/h, service ceiling: 5000m, hovering ceiling, OGE: 1760m, range: 465km, payload: 3000-5000kg
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Mil Mi-18
1979
www.aviastar.org/helicopters_eng/mi-18.php
Mi-17 with 0.9m fuselage extension, retractable undercarriage and modified cabin doors. Prototype only.
Technical data for Mi-18
Crew: 3, passengers: 30, engine: 2 x TV3-117MT turboshaft, rated at 1425kW, main rotor diameter: 21.3m, take-off weight: 11500-13000kg, empty weight: 7550kg, max speed: 270km/h, cruising speed: 240km/h, hovering ceiling, IGE: 3200m, service ceiling: 5550m, range: 580km, payload: 3000-5000kg
